Rare Natural Green Tanzanite – 1.64 ct – Unheated – ICA GemLab Presented by ParaibaCollective on Catawiki, this unusual 1.64-carat Natural Zoisite / Tanzanite displays an attractive green and violet bi-color appearance, distinctly different from conventional blue-violet Tanzanite. Fashioned in an elegant oval shape with a Modified Brilliant cut, the transparent gemstone shows attractive natural-looking green and violet tones, making it an interesting collector’s stone. Gemstone: Natural Zoisite / Tanzanite Weight: 1.64 ct Dimensions: 9.35 × 7.40 × 3.46 mm Color: Green & Violet Description: Green / Bi-Color Tanzanite Shape: Oval Cut: Modified Brilliant Transparency: Transparent Treatment: Unheated Laboratory: ICA GemLab Report No.: TH26G132437 Report Date: 5 October 2026