What's It Worth?
For those seriously considering a sale, CollectiveGold helps clients sort through, value, and sell pre-loved jewellery, watches, and antique pieces — securing direct purchase offers from established, vetted buyers on your behalf.
Whether reviewing a single piece or a wider collection, Isabelle offers a discreet, personal approach — including free home visits where appropriate — while working through a trusted network of specialists, private collectors, and leading auction houses to obtain genuine offers and expert valuations for you to consider.
Valuations for insurance, probate and auction purposes are available as a supporting service.
A clear, considered route to sale — on your terms.
Looking to Buy?
For clients searching for something specific — a meaningful heirloom, the perfect antique, a signed find, or simply your next dream piece — CollectiveGold quietly sources on your behalf through the same trusted network used to sell.
Isabelle draws on relationships with private dealers, specialist jewellers, unsold auction lots and collectors' inventories to locate your piece — often at direct, value-driven prices.
Whether replacing a lost heirloom, acquiring for a wider collection, arranging bespoke commissions or sourcing loose diamonds & coloured stones, every search is handled discreetly and only pieces that meet your brief are presented.
A patient, personal search — on your terms.
- ◆Antique & meaningful pieces
- ◆Fine watches & timepieces
- ◆Signed & designer jewellery
- ◆Bespoke commissions
- ◆Loose diamonds & coloured stones
- ◆Estate & unsold auction lots
How It Works
A discreet three-step journey, refined for clarity and confidence.
Speak with Isabelle
Send images and a few details of your piece if you're considering a sale — or share a reference and brief if you're looking to source something specific. Guidance is also provided in person when sorting through collections or discussing what to buy.
Offers & Options Obtained
For sellers, I approach trusted buyers and dealers to secure direct purchase offers. For buyers, I present sourced options from my network — including auction, private and bespoke routes. Valuations for auction, probate and insurance can also be arranged.
Payment — Send or Collect
Once you're happy to proceed, payment is arranged via bank transfer. Your piece is then either collected from you (selling) or sent to you (buying) — securely and discreetly.
Send images and a few details of your piece if you're considering a sale — or share a reference and brief if you're looking to source something specific. Guidance is also provided in person when sorting through collections or discussing what to buy.
For sellers, I approach trusted buyers and dealers to secure direct purchase offers. For buyers, I present sourced options from my network — including auction, private and bespoke routes. Valuations for auction, probate and insurance can also be arranged.
Once you're happy to proceed, payment is arranged via bank transfer. Your piece is then either collected from you (selling) or sent to you (buying) — securely and discreetly.
Understanding Your Options
Whether buying, selling or safeguarding a piece, it's important to understand which valuation best supports your outcome — I'm here to guide you through the options.
Direct Purchase Offers
Offers sourced from trusted jewellers, dealers & buyers considering immediate purchase — prices reflect what they're prepared to pay directly.
Auction & Probate Valuations
What your piece may achieve on the open market, based on demand. Suited for estate planning, probate, or sale via auction houses.
Insurance Valuations
Determines the cost to replace your item for insurance purposes if lost or stolen — issued with formal documentation.
Offers sourced from trusted jewellers, dealers & buyers considering immediate purchase — prices reflect what they're prepared to pay directly.
What your piece may achieve on the open market, based on demand. Suited for estate planning, probate, or sale via auction houses.
Determines the cost to replace your item for insurance purposes if lost or stolen — issued with formal documentation.
*Wish to sell at auction? — valuation fees are waived and complete consignment support is provided when a sale goes through CollectiveGold.
About Isabelle
Founder of CollectiveGold
Belle, Founder @CollectiveGold, has built up an immensely valuable range of contacts, working for luxury auction houses and renowned fine jewellery brands including Bulgari and Tiffany.
Her trusted network of specialists, valuers, dealers and industry contacts helps secure reliable valuations, leading direct purchase offers, strong sales results at auction, and privately-sourced acquisitions for clients searching for something specific.
She has also achieved incredible feedback for her service — understanding how to make the valuation, sourcing and sales process feel less confusing while helping clients achieve the best possible outcomes.
Simply put, CollectiveGold was created to offer a more personal, discreet and hassle-free approach to sourcing, sorting, valuing & selling jewellery, watches and antique pieces. Professional cleaning & restoration is available as an additional service.
Meet Isabelle at Selected Markets
Professional jewellery cleaning, consultations and viewings of sourced pieces are available at selected markets and pop-up events.
A relaxed way to discuss jewellery, watches, antiques, valuations, or pieces you may be considering buying or selling.
Ready to Get Started?
Chat with Isabelle directly via WhatsApp to arrange your next steps.
Discreet · Personal · Trusted