A set of Spinel, 3.668 carats

Technical details: Type: Spinel Weight: 3.668 carats Dimensions (mm): 4.82x3.82x2.66 (average) Shape: Cushion Color: Red Clarity: Eye clean Transparency: Transparent Hardness: 7.5-8.0 Treatment: Untreated Origin: Burma Certification: Certificate from Saudi Laboratory (MT) - website (www.mtgl.com.sa) Spinel is a magnesium aluminum oxide mineral. Spinel is known for its wide range of colors, as it can appear in red (often resembles ruby), pink, orange, blue, purple, black, or even colorless. Spinel features a glassy luster, and is usually found in metamorphic rocks like marble, and in placer deposits.