Maximising your loan offer on diamond jewellery

Pawn Your Diamond Necklace

5% Fixed Monthly Interest rate & no early payment penalties
Accurate, auction-based valuations & same day payment
No hidden fees, no credit checks & FCA regulated
Up to 7 Months Contract
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We offer a complimentary valuation (no obligation) and same day payment, call 020 7493 0385 to speak with our team or email us at [email protected]
Winners of the 2025 National Pawnbroking Association Award

Our promise to you

A diamond necklace can provide immediate, short-term liquidity at a fixed 5% monthly interest rate. We ensure you know the cost of borrowing before accepting our offer, ensuring the loan suits your circumstances.

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Whether it is a rivière, a graduated line necklace, a solitaire pendant or a high-jewellery collar, we consider diamond quality, setting, craftsmanship, metal, length, clasp, condition and supporting certificates alongside current auction market evidence.

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We disclose all relevant loan costs at the outset. Your agreement remains clear and uncomplicated, without hidden or surprise charges that only become apparent when you wish to redeem the necklace.

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Your necklace is the collateral, rather than your income or borrowing record. Our appraisal centres on your jewellery’s authenticity, quality, and current liquidity in the secondary market.

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For eligible pieces, inspection and paperwork can be completed efficiently, allowing your loan to be transferred on the same day once the valuation and terms are agreed.

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If your financial position changes, you can clear the outstanding loan balance during the term and arrange collection of your diamond necklace. The loan principal and interest up to that point are all that we require.

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FCA regulation means your loan is fair, transparent, properly documented and provided within a regulated framework, alongside secure professional care for your diamond necklace.

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10 Cartier Rings, Earrings, Necklaces & Bracelets You Can Pawn Today at Luxury Pawn Shops

5%

fixed monthly interest rate

35+

years experience

40+

industry awards

Up TO

7

Months Contract

The most awarded pawnbroker in the UK

New Bond Street Pawnbrokers is a high-end, multi-award-winning pawn shop in Mayfair, Central London, specialising in initial online valuations and loans on fine assets such as jewellery, watches, classic cars, diamonds, art, memorabilia, prints, sculptures, and paintings.

With over 40 prestigious industry awards & nominations, we are a 6-time National Pawnbrokers Association (NPA) award-winning luxury pawn shop, operating for over 25 years from our Central London, Mayfair store. With a loyal customer base and flawless reviews, our track record speaks for itself, making us one of the best pawn shops and pawnbrokers in London for luxury and fine watches, jewellery, art, paintings, photographs, classic cars & more. We retain a customer base of high-net-worth individuals and famous names through competitive interest rates, discretion, trust, and impeccable service.

Headed by David Sonnethal, a familiar media figure, New Bond Street Pawnbrokers’ modern, forward-thinking approach to providing collateral loans on fine items and assets has not gone unnoticed by the public, the media, or trusted industry bodies. 

Our reputation as an industry leader is cemented by awards that recognise the value that our local pawn brokers bring to customers in London, from initial online valuations to collateral loans on fine watches, art, paintings, diamond jewellery, classic and prestige cars.

We took home the National Pawnbrokers Association (NPA) Best Store of the Year award in 2024, 2019 and 2008 thanks to our commitment to innovation, adoption of technology, and a strong focus on teamwork, and the National Pawnbrokers Association – Employee of the Year award in 2025 and 2021. Additionally, the NPA awarded us in 2022 and 2023 for our engaging social media work, which helped bring us closer to our customers.

New Bond Street Pawnbrokers also won “Best Website” and “Disruptive Business Model” at the UK Business Awards, thanks to our focus on customer-centric digital experiences. Finally, our win at the Experian Credit Awards demonstrates our dedication to responsible lending, customer care, and digital innovation in the luxury pawnbroking sector in and near London, and across the UK.

Transparency, fair collateral lending practices, and user-friendly experiences are at the heart of what we do at New Bond Street Pawnbrokers. Reach out today to discover why we’re the most awarded luxury pawn shop in London & the UK for collateral loans on watches, fine art & paintings, diamonds, diamond jewellery, luxury, vintage and classic cars.

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Winner 2025
Winner 2024
Winner 2023
Winner 2022
Winner 2021
Winner 2019
Winner 2008

Honest reviews about New Bond Street Pawnbrokers

How we value your Diamond Necklace

Call us or fill in the form on our website

To pawn diamond necklaces, reach out online (by completing our contact form), by email or telephone, or simply visit our pawn shop in central London (just off Oxford Street0. Please describe your piece’s total carat weight, design, and provenance – detailed information helps our pawn shop provide an accurate initial estimate.

Certificates, invoices, brand paperwork and previous auction records can make a diamond-necklace appraisal faster and more reliable. They help establish gemstone quality, authenticity, ownership history, and the completeness of the piece.

Useful documents include:

– GIA reports for principal diamonds, pendant diamonds or larger stones within the necklace.
– Diamond grading reports for a matched suite of larger diamonds.
– Original invoice, receipt or insurance schedule.
– Brand certificate, guarantee card, service record or repair documentation.
– Original box, fitted case, pouch and presentation material.
– Previous auction catalogue entries and published provenance.
– Documentation confirming total diamond weight, particularly for a rivière or full diamond line.

For a necklace containing many small diamonds, individual laboratory reports may not exist or be practical. In those cases, the physical appraisal, construction, diamond quality, total estimated weight, and market comparables become more important. For a necklace with one major diamond, a report can be central to the valuation.

Get a Free Valuation

Or call 020 7493 0385 to speak with our team

Step‑by‑step valuation: how to pawn diamond jewellery in Central London

2. Review Diamond Necklace

Our pawnbrokers value a diamond necklace as a complete piece of jewellery, while also assessing its individual components. Unlike a single diamond ring, a necklace can contain dozens or hundreds of stones, articulated links, a complex clasp, and detachable elements.

Our physical appraisal of your diamond necklace may include:

– Total diamond weight and the approximate size range of the stones.
– The type of diamonds.
– Whether stones are uniform, graduated, matched in colour and clarity, or deliberately varied.
– The quality of principal diamonds, particularly centre stones, pendants and larger terminal drops.
– The metal, hallmarks, chain construction and overall weight.
– The clasp, safety catch, tongue, box clasp, concealed fitting and any additional security chain.
– Whether a pendant, drop, brooch or central motif is detachable.
– Brand signature, period, workmanship and original components.
– Condition of links, stone settings, hinges, solder joins and repair history.
– GIA reports, purchase receipts, previous auction records and certificates.
– Recent comparable sales for similar necklaces, not simply jewellery with the same total diamond weight.

For a rivière, we examine the graduation carefully. A well-proportioned progression from the centre to the clasp, with diamonds matched in colour and make, generally has stronger commercial appeal for a collateral loan than a line necklace with irregular spacing, noticeably mismatched stones or later replacements.

Diamonds are without a doubt luxurious precious stones, but they come in varying degrees of quality, which affects their price at auction and implicitly their value as collateral at pawn shops. Factors from the size to the purity of a stone can make a diamond necklace’s value fluctuate, meaning an expert eye is essential to getting a fair loan price.

To illustrate this fluctuation, note that ‘The Farnese Blue’ diamond was sold for an amazing $6,713,837 in 2018. It was a rare appearance having been kept within various royal families for years before. This meant very few even knew it existed, placing it as one of the most expensive pieces of jewellery ever sold.

In brief, our specialists assess your necklace’s diamond quality, craftsmanship, and brand significance. For exceptional pieces like Graff diamond chokers, we leverage our auction partnerships. It is our belief that our auction-based diamond necklace valuations are some of the most accurate in London.

Step‑by‑step valuation: how to pawn diamond jewellery in Central London

3. Agree Loan Amount

The collateral lending amount available depends on the assessed resale value of the complete diamond necklace.

For a diamond necklace, our pawn brokers consider whether it is:

– A single-stone pendant necklace.
– A rivière or line necklace with graduated or uniform diamonds.
– A collar, fringe, festoon, bib, collarette or articulated diamond necklace.
– A diamond necklace with a detachable pendant, brooch conversion or removable centre stone.
– A signed modern necklace, antique piece, Art Deco jewel or vintage design.
– A necklace combining diamonds with pearls, sapphires, emeralds, rubies or other gemstones.

A higher loan amount may be possible where the necklace has high-quality natural diamonds, an established maker, secure original construction, clear certificates, and a strong resale market.

In brief, as a premier pawn shop in Mayfair, central London, we offer transparent collateral loans on diamond necklaces. Our competitive loans are based on current market trends and come with enough flexibility to suit various financial situations.

Step‑by‑step valuation: how to pawn diamond jewellery in Central London

4. Receive Payment

After finalising terms, your diamond necklace loan funds are typically transferred within 2 to 4 hours. We safeguard your valuable piece in our state-of-the-art West End vault. Repay at your convenience without penalties, maintaining full control over your asset.

Step‑by‑step valuation: how to pawn diamond jewellery in Central London

Diamond necklaces you can use as security for a COLLATERAL LOAN

If you are looking for high-end diamond jewellery/jewelry pawn shops "near me" that have been lending against diamond earrings, bracelets, necklaces, engagement and wedding rings from Cartier, Tiffany, Harry Winston, Bulgari, Graff and Van Cleef & Arpels for almost 30 years, then get in touch - our pawnbrokers serve all UK and London areas, including Mayfair, Hatton Garden, Westminster, Fulham, Islington, Chelsea, Shoreditch, Kensington, Lambeth, Marylebone, Waterloo, Covent Garden, Soho, Fitzrovia, Belgravia, Pimlico, Bayswater, Leicester Square, Green Park, Bloomsbury, London Bridge, Bankside, Trafalgar Square, Embankment, Charring Cross, Notting Hill, Knightsbridge, Tower Hill, City of London, Victoria, Liverpool Street. Transparency and integrity are at the core of our business model. We offer competitive fixed monthly rates and flexible loan terms on luxury jewellery and diamonds, with no hidden fees or charges. Our contracts are regulated by the Financial Conduct Authority, providing our clients with peace of mind and protection.

Featured in the Press

Our quality service, high standards, and innovative business practices have earned positive press coverage from a diverse set of media outlets such as The Times, The Telegraph, Time Out, Channel 4, The Spectator, and more.

Opening Hours

Open
Monday to Friday

Closed
Saturday & Sunday

Our premises are at 5 Blenheim Street, just off New Bond Street. From Oxford Street, head south on New Bond Street and turn right onto Blenheim Street. We’re on the left side of the street.

Whether you are looking to pawn your luxury watch, diamond jewellery (earrings, necklaces, bracelets, wedding & engagement rings), fine art and paintings, GIA diamonds, or a classic car, you can reach our pawn shop easily from any area in Central London, including Mayfair, Hatton Garden, Westminster, Fulham, Islington, Chelsea, Shoreditch, Kensington, Lambeth, Marylebone, Waterloo, Covent Garden, Soho, Fitzrovia, Belgravia, Pimlico, Bayswater, Leicester Square, Green Park, Bloomsbury, London Bridge, Bankside, Trafalgar Square, Embankment, Charing Cross, Notting Hill, Knightsbridge, Tower Hill, City of London, Victoria and Liverpool Street.

5 Blenheim Street, Mayfair London W1S 1LD

Bus

Several bus routes serve the area around New Bond Street:

Routes 7, 94, 98, 139, and 390 stop at Selfridges on Oxford Street, a short walk from our location.

Routes 12, 88, 94, 159, and 453 stop at Conduit Street/New Bond Street.

From any of these stops, it’s a brief walk to our premises on Blenheim Street.

5 Blenheim Street, Mayfair London W1S 1LD

Car

While driving in central London can be challenging due to traffic and parking restrictions, several public car parks are nearby, the closest of which is on Burlington Street.

Please note that the area is within the Congestion Charge zone, which operates from 7:00 to 18:00 Monday to Friday and 12:00 to 18:00 on weekends and bank holidays.

5 Blenheim Street, Mayfair London W1S 1LD

Tube

Bond Street is the nearest tube station; it’s served by the Central, Jubilee, and Elizabeth lines. Oxford Circus and Green Park stations are also within walking distance of our store.

5 Blenheim Street, Mayfair London W1S 1LD

Our Team

Susana Figueiredo

Manages the day to day running of the business

Mariana Vlad

Manages the day to day running of the business

Constantin Singureanu

Heads up our marketing and digital efforts

David Sonnenthal

The founder of New Bond Street Pawnbrokers

FAQs

Pawning your diamond necklace, Tiffany necklace and others at our pawn shop in Mayfair, Central London, offers a temporary financial solution without permanently parting with your cherished piece. At New Bond Street Pawnbrokers, we provide short-term collateral loans on diamond necklaces, Tiffany necklaces and other luxury necklaces, allowing you to reclaim your jewellery upon repayment. This option is particularly beneficial if you anticipate future value appreciation or have a strong attachment to the jewellery used as collateral.

Our Central London, Mayfair-based pawn shop offers loans against premium diamond necklaces from esteemed brands such as Cartier, Van Cleef & Arpels, Graff, Harry Winston, Tiffany, and Bulgari. Our expertise ensures accurate auction-based diamond necklace valuations for a wide variety of brands.

No. Our pawnbrokers specialise in diamond necklaces. While we don’t typically offer collateral loans on plain gold chains, we do consider gold necklaces featuring significant diamond elements or those from luxury brands mentioned above.

We encourage early repayment and do not charge penalties for the privilege. This flexibility allows you to reclaim your diamond necklace on your terms.

Our standard loan term is seven months, but we offer flexibility to suit individual needs. Discuss your preferred duration with our team at our New Bond Street location. We believe we are one of the best pawn shops for diamond necklaces, Tiffany necklaces and other high-end necklaces, and we have 6 awards from the National Pawnbroking Association to back it up!

In the event of non-repayment, our pawnbrokers may sell your diamond necklace to recover the loan amount. However, we understand that life doesn’t always go to plan, and we will do our best to avoid this scenario.

Yes, loan renewals are possible. We’ll reassess the necklace’s value and current market conditions and offer you updated terms on your control.

We don’t accept found items. To pawn a necklace at our London, Mayfair location, you must demonstrate legal ownership.

Our pawn brokers consider lending against damaged diamond, Tiffany and other luxury necklaces necklaces on a case-by-case basis. Minor damage may not significantly affect the loan value, but severe damage could impact our ability to offer finance.

Our experienced collateral lending team in Central London is skilled in authenticating diamond necklaces. We use various techniques and tools to verify the authenticity of both the diamonds and the brand, ensuring we only offer loans on genuine pieces.

They can, provided the necklace is authentic, complete, well preserved and commercially desirable.

For signed necklaces, we check:

– Maker’s signature, serial number, hallmarks and assay marks.
– Whether the chain, clasp, pendant and any detachable components are original to the piece.
– The specific collection, design period and recognisable house style.
– Original box, certificate, purchase invoice, service documents and repair history.
– The condition of the maker’s marks, particularly after resizing, alteration or repair.
– Whether the necklace has been converted from another jewel, such as a brooch, tiara fitting or detachable pendant.

A branded necklace is not automatically worth more than an unbranded one. A classic diamond rivière with well-matched high-grade natural diamonds may support a stronger loan than a signed necklace with small, lower-quality stones or substantial condition issues.

Yes. The chain and clasp are central to a diamond necklace’s wearability, condition and resale value.

We inspect:

– Whether the chain is original to the pendant or necklace.
– The metal type, purity, hallmarks and signs of replacement or alteration.
– Solder joints, links, hinges and articulated sections for stretching, distortion or repair.
– The clasp’s function, alignment and security.
– Safety catches, safety chains, figure-of-eight catches and concealed fastenings.
– Whether the diamond-set clasp is original, complete and working properly.
– Whether the necklace has been shortened, lengthened or reconfigured.
– Signs that diamonds, links or decorative elements have been replaced.

For a pendant necklace, a later replacement chain is not always a major issue. However, for a signed diamond rivière or antique articulated necklace, an altered clasp, missing safety catch or non-original extension can materially affect both collector appeal and collateral loan value.

Yes. New Bond Street Pawnbrokers can consider antique and vintage diamond necklaces, including Victorian, Edwardian, Belle Époque, Art Nouveau, Art Deco, mid-century and later 20th-century designs.

With older necklaces, we look beyond the headline diamond weight. Their value can depend on period craftsmanship, original construction, historic diamond cuts, provenance and whether the necklace survives in an unaltered and wearable form.

We assess:

– The period, style and quality of workmanship.
– Whether old-cut, old European, rose-cut, mine-cut or single-cut diamonds are original to the necklace.
– The condition of fine knife-edge settings, platinum millegrain work, old links and delicate clasps.
– Whether the piece has been shortened, converted or rebuilt.
– Any period maker’s marks, retailer marks, original fitted case or family provenance.
– Whether repairs are sympathetic and professionally executed.

An antique necklace does not need to be untouched to be lendable. Sensible, stable restoration can be acceptable, especially in a wearable jewel. But missing original elements, heavily replaced diamonds, weakened links or major conversion work can reduce the loan offer.

Yes. Our pawnbrokers can consider both single-stone diamond pendants and multi-stone necklaces, although the appraisal approach differs.

For a single-stone pendant, the central diamond usually drives the value. We focus on its carat weight, cut, colour, clarity, natural origin, certification and setting. A detachable pendant with a GIA-certified diamond can be particularly straightforward to assess, provided the necklace and fitting are secure.

For a multi-stone necklace, we assess the overall composition as well as the principal stones.

Important questions include:

– Are the diamonds well matched in colour, clarity, cut and fluorescence?
– Are the stones evenly graduated and correctly positioned?
– Are there obvious later replacements or stones that do not match the rest?
– Are all links, settings and articulated sections present and secure?
– Is the total diamond weight supported by previous paperwork or is it an estimate?
– Does the necklace have a recognised design, period or maker?

Yes. Once a loan is agreed, your diamond necklace is securely stored for the duration of the active agreement. It is not displayed, worn, loaned or sold while the agreement remains active and you remain within its terms.

Necklaces require specific handling and storage because chains, articulated links, pendants and clasps can tangle, catch or become damaged if stored carelessly. We keep the necklace protected and complete, including its detachable pendant, safety chain, clasp components, certificates, box and associated documents.

Your jewellery is protected through:

– Restricted access for authorised personnel only.
– 24-hour surveillance and alarm systems.
– Secure storage and careful handling for articulated jewellery.
– Separate retention of all accompanying certificates, fitted cases and removable components.
– No credit check is required. The loan is secured against the necklace itself, so making an enquiry does not affect your credit rating.

Useful Guides

You can rest assured that you will receive a competitive deal on the market from one of the most awarded collateral lender in the UK. All our loans come with competitive rates of fixed 5% (Representative APR 60%), no hidden fees at all, no early release fees, and loan terms from two up to seven months. A representative example of repayment for a two-month loan of £2500 is £250, thus a total repayment of £2750 at a fixed 5% interest rate (60% per annum).

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Constantin Singureanu

Constantin leads our multi-award digital marketing team, with an exclusive focus on delivering the best possible digital experience for our clients, from the moment they reach our website, finding the information they need, and getting in touch, to learning interesting facts about the fascinating world of luxury via our comprehensive blog.

Mariana Vlad

Mariana has been working in the pawnbroking industry since 2014. She enthusiastically embraces her newly found interest in watches. Mariana thoroughly enjoys working with customers, building strong relationships, and over her long and distinguished career, she has distinguished herself through excellent communication skills and high personal integrity. In 2025, Mariana won the prestigious “Employee of the Year” Award from the National Pawnbroking Association (NPA).

Employee of the Year 2025 – National Pawnbroking Association Awards (NPA) 

Susana Figueiredo

Having worked in the pawnbroking industry for 20 years, Susana offers a high level of knowledge within the lending sector.  Her expertise is key to the daily business at New Bond Street Pawnbrokers where she ensures that compliance is adhered to. With a keen interest in the satisfaction and experience of our clients, Susana is a huge asset to the team and is a fundamental part of the day-to-day running of the company.

Employee of the Year 2021 – National Pawnbroking Association Awards (NPA) 

David Sonnenthal

David Sonnenthal took an unusual route into pawnbroking, moving into the industry after a successful career in show business. Between the ages of 17 and 26, he worked as a professional actor, appearing in a variety of productions on both stage and screen. In 1996 he even won the prestigious Perrier Award for acting at the Edinburgh Fringe Festival.

His pawnbroking career in London started quite by chance after he discovered the future site of New Bond Street Pawnbrokers during an acting audition in 1999. Immediately seeing the shop’s potential, he turned it into a successful pawn shop London business and went on to become one of the UK’s top pawnbrokers.

David is a highly respected figure in the pawnbroking industry, winning the National Pawnbroker Association’s award six times in 2025, 2024, 2022, 2021, 2019, and 2008. Over the course of his 25-year career, he has gained a reputation as one of the pioneers of UK and London’s pawnbroking. He is a regular fixture in the British media, often providing expert advice on market values.

Never one to lose touch with his roots, David has even managed to continue his entertainment career as the resident dealer on Channel 4’s popular Four Rooms TV series.

New Bond Street Pawnbrokers
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