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Ruby

Ruby is a pink to red gem consisting mainly of corundum (Al2O3) mineral with chromium coloring. The degree of hardness on the Mohs scale is 9. Among the largest deposits of rubies are mainly Africa, Asia (Burma), Australia, Greenland, Madagascar. The oldest deposits of rubies are alluvial rivers of south-western Sri Lanka (Kaliganga River) with the old center of Ratnapura. Rubies are in demand magical and jewelery minerals. Their color is orange-red, raspberry, faint red, deep red, red, like blood - also known as "pigeon blood" - so colored rubies are the most precious! Ruby is one of the most valuable gemstones whose value can sometimes even exceed the price of roughly the same size diamonds.

Ruby raw crystal 28ct, Mali

Raw ruby - corundum Very well translucent Weight: 28 ct (5.6 g) Size: 1.5 x 1.3 x 1.1 cm Country of origin: Mali You...
Kč1,120.00

Ruby raw crystal 29ct, Mali

Raw ruby - corundum Very well translucent Weight: 29 ct (5.7 g) Size: 1.4 x 1.2 x 1.2 cm Country of origin: Mali You...
Kč1,140.00

Ruby raw crystal 60ct, Mali

Raw ruby - corundum Very well translucent Weight: 60 ct (12g) Size: 2.5 x 1.7 x 1 cm Country of origin: Mali You...
Kč2,400.00

Ruby raw crystal 50ct, Mali

Raw ruby - corundum Very well translucent Weight: 50 ct (10 g) Size: 3.4 x 1.5 x 0.9 cm Country of origin: Mali You...
Kč2,000.00

Ruby corundum raw 77ct, Mali

Raw ruby - corundum Very well translucent Weight: 77 ct (15.4 g) Size: 3.6 x 1.8 x 1.4 cm Country of origin: Mali You...
Kč3,600.00

Ruby slices 4,8g, India

Raw ruby slicesVery well translucentWeight: 4.8 gDimensions: 1.58 x 1.37 x 0.78 cmCountry of origin: IndiaYou always...
Kč200.00

Ruby slices 4,8g, India

Raw ruby - unpolished slicesVery well translucentWeight: 4.8 gDimensions: 1.62 x 1.42 x 0.71 cmCountry of origin:...
Kč200.00

Ruby slices 3,9g, India

Raw ruby - unpolished slicesVery well translucentWeight: 3.9 gDimensions: 1.80 x 1.57 x 0.52 cmCountry of origin:...
Kč180.00

Ruby slices 8,9g, India

Raw ruby - unpolished slicesVery well translucentWeight: 8.9 gDimensions: 2.74 x 1.86 x 0.80 cmCountry of origin:...
Kč400.00

Ruby slices 16,7g, India

Raw ruby - unpolished slicesVery well translucentWeight: 16.7 gDimensions: 3.08 x 2.39 x 0.91 cmCountry of origin:...
Kč750.00

Ruby slices 50,4g, 12...

Raw ruby - unpolished slices 50.4g (12 pieces) bargain priceVery well translucentWeight: 50.4 gNumber: 12...
Kč1,400.00