0.89 ct. Canadian Vlasovite
Color: Medium Yellow
Clarity: Eye Clean
Origin: Sheffield Lake, Kipawa, Quebec, Canada
Cut: Rectangular Radiant
Treatments: None
Measurements: 5.3 x 4.9 mm
It is a rare and great pleasure to come across such a fine quality example of such a rare 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.; from the way the mineral forms, the rough is highly fractured and gemmy segments are small.
Certainly among the very few and finest available of the entire species. Flawless cutting and bright, the mineral has the added benefit of being fluorescent under UV light. Worthy of the finest Canadian collection. With GIA cert.