Ruby$11,800+1.4%Sapphire$86,000-0.4%Sapphire$11,500+1.8%Emerald$34,000+1.3%Emerald$13,200+2.6%Paraíba Tourmaline$42,000+4.7%Paraíba Tourmaline$13,000+3.1%Spinel$6,200+0.6%Cobalt Spinel$21,000+5.2%
WORLDWIDE LAUNCHFebruary 2027
DEMANTOID

The garnet with more fire than diamond

Demantoid is green andradite garnet. Its name comes from an old word for diamond, for its diamond-like lustre, and its dispersion, the fire that splits light into colour, is higher than diamond’s.

The classic material came from the Ural Mountains in the nineteenth century and was a favourite of Russian jewellers. Ural stones often carry fine golden fibres called “horsetail” inclusions, prized as a sign of origin. Namibia and Madagascar produce today, mostly in small sizes.

SOURCE
Russia, Namibia
The Urals set the reference; Namibia supplies much of today’s market.
SIGNATURE
Horsetail inclusions
A mark of Russian origin, and valued rather than discounted.
SIZE
Mostly under 2 ct
Fine stones above two carats are scarce.
VAULT TRADE STANDARD

Only the finest demantoid: bright green, strong fire, from 1.5 ct, untreated, with a top-four laboratory report.

NOT YET LISTEDDemantoid lists on CGEMX when real stones arrive, with real prices.