You’re bidding on an absolute rarity! This stunning gemmy Tanzanite crystal boasts a lovely shape and an exceptionally rare deep blue color. Completely untreated, this gem showcases a breathtaking deep blue hue with remarkable transparency. Featuring an exceptional size and top-tier quality, this Tanzanite crystal is a true collector’s gem. Don’t miss the chance to own this unique and rare treasure! weight : 4 gram / 20 ct size : 18*11*11 mm