1.20 ct. Canadian Vlasovite
Color: Medium Yellow
Clarity: Eye Clean
Origin: Sheffield Lake, Kipawa, Quebec, Canada
Cut: Rectangular Radiant
Measurements: 6.4 x 5.2 mm
It is a rare and great pleasure to come across what we believe to be one of the finest faceted gems of an entire species. The mineral Vlasovite is inherently quite rare, being discovered in Russia in 1961 - the single occurrence of gem grade examples is at Sheffield Lake in Quebec. The Vlasovite forms in concert with the much more common Eudialyte and, since the initial find here, very few stones have been cut. A Gems & Gemology article from as recently as 2012 mentions the largest faceted example as 0.52 ct. and we personally have had only sub-carat stones in this very best quality. From the way the mineral forms, the rough is highly fractured and gemmy segments are small.
As far as we are aware, and we do try to keep up on these things, this gem is the largest and finest Vlasovite available - certainly among the very few if there are any comparable. Flawless cutting and bright, the mineral has the added benefit of being fluorescent under UV light, see the last photo. Worthy of the finest collection and a Canadian treasure. With GIA cert.