Natural Ruby 7.70 Carat

**Gemstone:** Natural Ruby
**Weight:** 7.7 Carat
**Colour:** Purplish Red
**Shape & Cut:** Oval / Mixed
**Refractive Index:** 1.762 – 1.770
**Specific Gravity:** 3.98 – 4.00
**Hardness:** 9 (Mohs scale)
**Certification:** GEMX Certified