Untreated Tanzanite Crystal

Tanzanite crystal untreated mixed grade rough 10-25mm 1/2 ounce lots 1-3 piece

Tanzanite crystal untreated mixed grade rough 10-25mm 120 carat lots 4-10 piece

Tanzanite crystal untreated mixed grade rough 10-25mm 1 ounce lots 1-7 piece

Natural Tanzanite Crystal, 0.95 Ct. Zoisite Rough, Untreated Tanzanite Raw

Rare Natural Tanzanite Crystal Intense Blue-Violet Untreated Specimen

Natural Raw Dark Blue Tanzanite Crystal Rough Untreated Gemstone +gift bag