Description

​Gemstone Specifications
​Identification: Natural Ruby (Indian Name: Manek)
​Weight: 8.39 carats (ct)
​Color: Red
​Shape/Cut: Emerald cut
​Measurements: 12.80*10.10*6.50 mm (Approximate)
​Refractive Index (R.I.): 1.760 – 1.768
​Specific Gravity (S.G.): 3.99 – 4.00
​Important Notes on the Certificate
​Origin & Enhancements: The card explicitly states at the bottom: “Origin & enhancement not checked for the above specimen.” This means the lab has not verified if the ruby is heat-treated, glass-filled, or where it was mined.
​Lab Details: The certificate includes a QR code, a “Mumbai” lab stamp, and the signature/credentials of a gemmologist (MSC, DG).
​Note: When purchasing high-value gemstones like rubies, “enhancements” (such as lead-glass filling) can significantly impact the stone’s market value. Since this certificate does not check for treatments, you may want to have it appraised by a laboratory that specifically tests for heat or chemical enhancements if you are looking for an investment-grade stone.