Bhansali Trading Corporation manufactures Tanzanite of Size 19 X 28 mm. Bhansali Trading Corporation supplies various types of natural precious and semi- precious gemstones. The Tanzanite of Size 19 X 28 mm is oval in shape. The size of the Tanzanite is 41.70 carats. This is a blue, violet, yellow-brown, deep green [chrome] stone with chemical composition of hydrated calcium aluminum silicate.