Every stone is checked against its laboratory report and sold by a ✓ Verified store. You pay CGEMX, not a stranger, and you pay the price you see. See it first through a CGEMX inspection or at the CGEMX viewing facility. Vault Trade, for holding and trading the finest untreated stones, opens next.
The trade still runs on discretion. CGEMX stands in the middle, so you never have to take anyone at their word.
Every stone is matched to the report of the laboratory that issued it before it is listed. Enhancement is stated on every listing.
You pay by card, to CGEMX, and you pay the price you see. The seller pays the 3.95% fee and the card fee, and is paid by CGEMX once the sale completes.
Book a CGEMX inspection: a gemmologist examines it for you, and the fee is credited back if you buy. Or view it yourself at the CGEMX viewing facility, free.
An offer is a hold on your card for up to seven days. It is charged only if the seller accepts, and released if not.
Only stores CGEMX has checked, on their company documents and their standing in the trade, can sell. Stars come only from completed sales.
Neither side sees the other’s name. Ask the seller anything in the chat; contact details are kept out, so the deal stays protected inside CGEMX.
After Stock Trade, Vault Trade opens: only the finest untreated stones, certified by GRS, SSEF, Gübelin or AGL, held in insured custody and traded on private offers while the stone never moves. 32 are shown as a preview.
Fine material has held value across decades — the chart shows why. What the exchange offers is access: verified stones, open pricing, and the ability to wait for the right one. The conclusions are yours to draw.
Illustrative index modelled on published trade estimates of 4–8% average annual appreciation for fine material over recent decades. Individual stones vary enormously. Not a forecast, and not investment advice.
A certificate proves something about a stone, but only if the stone in the photograph is the stone in the envelope. Until it is in your hand, you are trusting the seller’s word that the two match.
Send first and hope, or demand payment first and lose the sale. Between two dealers who have never met and share no jurisdiction, this is where most cross-border trades die.
Shipping, insurance, customs clearance, a week in transit and a real risk of loss. Stack those costs against the spread and any trade under roughly 15% margin stops being worth doing at all.
Before anything is shipped, send us the laboratory report. We check it against the issuing laboratory’s own register and confirm the stone meets the vault standard. You know it qualifies before it leaves your safe.
Once verified, send the stone to the Bangkok headquarters vault. On arrival it is weighed, measured and matched against the report it was verified on, then placed in insured storage under your name.
Your stone appears on the board at your asking price. Buyers accept it outright or open a private offer, and ownership can change hands any number of times while the stone stays exactly where it is.
Whoever owns the stone controls it. Leave it in custody indefinitely and keep trading it, collect it in Bangkok after a final inspection, or have it moved under insured chain of custody to a partner facility near you. No lock-in and no notice period.
Operations at two of the Mozambican ruby concession’s working pits have paused pending a geological review, with output guidance for the second half revised downward.
A 12.36 carat cushion-cut Kashmir stone, unheated and certified, underlined sustained demand for material from the exhausted Himalayan deposit.
Early parcels show colour approaching Mozambican material. Laboratories are updating origin criteria before the stones reach volume trade.
Revised reporting standards narrow the definitions of minor and moderate enhancement, with implications for stones certified under earlier criteria.
GRS, SSEF, Gübelin and AGL reports are cross-checked against the issuing laboratory and matched to the physical stone before listing.
On Vault Trade, funds are held in escrow until ownership of the vaulted stone has transferred. Sellers are paid on confirmed transfer, not on trust.
Only the seller sees an offer’s amount. Other buyers see how much interest a stone has, in broad bands — never an individual offer.
