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this 'high glow' material is visible in pitch darkness for over an hour
This is a brand new garnet which was grown for us
though it's also possibly an intentional dopant (color in moissanite is complicated in a similar way to diamond)
specifically Bi12GeO20 aka sillenite)
It has both incredible fluorescence and ultra-bright and long-lasting phosphorescence
Mutant YbAG Lab Garnets Stone:Square Cut Opalescent Brown 16.7ct 11.5mm this 'high glow' material isThese are gems cut from a defective crystal of ytterbium aluminum garnet (or at least it was supposed to be), or YbAG, which was custom grown for us and went wrong. This is a brand new garnet which was grown for us! YbAG has been used in the laser industry but has never been publicly available to the gem world as far as we know. It should have been a deep blue but turned out a weird mix of blue, green, gold, brown and opalescent. How odd! These stones
US$ 31235.00
US$ 2071.50