8.89 ct. Cassiterite
Color: Light / Medium Brown
Clarity: Eye Clean to Slightly Included
Origin: China
Cut: Lunette
Treatments: None
Measurements: 14.2 x 7.4 mm
Faceted Cassiterite has always been an appealing member of the collector class of gemstones. It is a tin mineral that is rare in gem quality, but when cut is quite impressive - it has both a high refractive index and an adamantine luster. These are quite dispersive as well - when nice, they are really lovely stones. We were extremely impressed by this very fine example of the species - great size and beautifully cut. Additionally, the color is quite consistent for a gem of this size - these can be quite heavily color zoned. Reasonably hard (7 on the Moh's scale) for a rarity as well..