Buy and sell anything in the trade.

Polygon's neutral, trade-only marketplace lets retailers & wholesalers source and sell across 12 categories — diamonds, gems, jewelry, watches, estate and more — on web and mobile.

Buy anything. Sell everything.

One neutral marketplace for every category. Post a For Sale ad to move inventory or a Wanted ad to source on demand — directly with vetted pros, no commissions.

Bargains & OTC

Pearls

Coins & Metals

Antique, Estate & Vintage

Handbags & Accessories

Tools & Equipment

Miscellaneous

Source it. Sell it. Flip it.

Everything a retailer or wholesaler needs to buy smarter and move inventory faster.

Source

Find exactly what your customer wants — even the rare and hard-to-find.

Post requests for the exact items your customers need
Find any jewelry-related item — natural & lab-grown diamonds, gemstones, watches, estate, signed & vintage, semi-mounts & more
Discover rare & hard-to-find pieces
Shop for closeouts & liquidation deals in our Bargains & OTC category
Browse or filter posts by category, seller, keyword or timeframe

Sell

Turn inventory — and OTC buys — into cash, on your terms.

Sell any jewelry goods — diamonds, gemstones, watches, estate, signed & vintage, semi-mounts & more
Get more than melt on nice, sellable pieces
Set your prices & terms — do business directly with the buyer
Connect with vetted, trustworthy buyers who are ready to buy
Flip OTC purchases fast to trade buyers who pay top dollar for signed, estate & antique pieces

Trade fast, from anywhere.

Pic, post and deal from the showroom or the road — the full marketplace lives on web and in the Polygon app.

Snap, post & trade from desktop or mobile
Get alerts for Wanted & For Sale posts that match
Message buyers and sellers directly — private, on web and app
Push notifications keep you fast on every deal
Buy & sell name brands by name — no talking in code

Built by the trade, for the trade.

Polygon was built to facilitate true wholesale transactions in a secure, vetted digital environment — connecting retailers, wholesalers, and OTC & watch flippers so the whole trade can buy, sell and flip with confidence.

Join the trade.

Source, sell and flip in a neutral marketplace built for jewelry pros. No commissions, no transaction fees.