Rubin natural 7.26 carat, 15 x 11.9 x 3.5 mm

This offer is not a public offer, and is informative in nature.
Gemstone: Ruby natural
Total carat weight: 7.26 CT.
Shape: cabochon oval
Luster: excellent
color: rose red
Country of origin: Mozambique
Hardness: 9
Size: 15 x 11.9 x 3.5 mm
Purity: VS1
The cut grade: good
Country cut: Thailand
Natural / Artificial: Natural
The procedure of refining: thermal and filling cracks
Refractive index 1.76-1.77

Art: 0091

Ruby is red corundum, all other varieties of corundum are called sapphire. Corundum is second in hardness on the Mohs scale with a score of 9. It is this combination of excellent hardness, rich color and silky Shine make rubies so valuable. Colors of rubies varies from rosavtodora to orange-red and from purple-red to brownish-red depending on the chromium and iron in the stone. Most experts expect a very good ruby of moderate or moderately-dark tint. Traditional sources of high quality rubies are Myanmar (Burma) and Thailand. Today a lot of available rubies also comes from Africa and Madagascar. Red ruby is one of the most classic types of red gemstones, often used in jewelry rings. Ruby is also great for all other types of jewelry such as earrings, hairpins, brooches, necklaces and fashionable pendants.