Weight: Approx 6.0 cts. (Estimated)
Size: 6.5cm (w) x 5.5cm (h) x 3.5cm (thickness)
Shape and cut: Oval, brilliant / stepcut
Colour: Near colourless
Refractive Index: 1.762 - 1.770 (Birefringence = 0.008)
Specify Gravity: (indeterminable due to the mounting)
Magnification: Fingerprint, crystal with halo and fine particle.
Comments: The biggest sapphire with the indications of heating
Total weight: 125.50 grams, including natural rubies, sapphires, diamonds, peridots, hessonites, amethysts, citrines and glasses.
(Tested random. Most rubies and sapphires are heated)
18K gold with sapphires rubies and diamonds in center
Certificate: Nan Yang Gemological Institute