Natural Bi-Color Tanzanite – 1.98 ct – Greenish Violet – Oval Cut – ICA GemLab Certified A distinctive 1.98 carat natural bi-color Tanzanite displaying an attractive combination of greenish and violet tones, fashioned in an oval brilliant / modified brilliant cut. The contrasting colour zones give this Tanzanite a unique character and make it especially interesting for collectors and distinctive fine jewellery. * Species: Natural Zoisite * Variety: Tanzanite * Weight: 1.98 ct * Shape: Oval * Cut: Brilliant / Modified Brilliant * Dimensions: 8.69 × 6.71 × 4.70 mm * Colour: Greenish Violet / Bi-Color appearance * Transparency: Transparent * Phenomena: None * Laboratory: ICA GemLab Treatment: See laboratory comments. Tanzanite is commonly heated to improve or change colour. According to the report, colour authenticity is currently undeterminable. A beautiful bi-color Tanzanite with an unusual greenish-violet appearance and strong collector appeal.