4.32 ct. Cassiterite - The Gem Trader Rare Gems

4.32 ct. Cassiterite


  • Color: Medium Dark Brown

  • Clarity: Eye Clean to Slightly Included

  • Origin: China

  • Cut: Triangle

  • Treatments: None

  • Measurements: 7.9 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. The color is quite even for a stone this size - reasonably hard (7 on the Moh's scale) for a rarity as well. 

$100 / carat - $432 total