1.01 ct. Afghani Stibiotantalite
Color: Medium Slightly Brownish Yellow
Clarity: Eye Clean
Origin: Afghanistan
Cut: Rectangular Step
Treatments: None
Measurements: 5.5 x 3.8 mm
We have only just a few times in the last 15 years come across such a fine gem example of this species, in excess of one carat. Stibiotantalite has one of the highest refractive indexes in the gem world (2.37-2.45) and a very high specific gravity at around 6.7 (vs. 4.6 for Zircon and 3.5 for Diamond). These can be from a number of places worldwide, though other locales tend to produce darker colors. The perfect combination of clarity, rich golden color and superb cutting (the polish and proportions are exceptional) make this a fantastically rare collection stone. Amazing gem.