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Rubys |
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Mineral group: Corundum
Chemistry: Al2O2
Color: Red
Crystal system: Trigonal
Fracture: Uneven or
conchoidal
Mohs Scale hardness: 9
Refractive index: 1,766-1,774
Dispersion: 0,008
Pleochroism Present: Orangey
red, purplish red
Streak: White
Specific gravity: 3,97-
4,05
Other:
Very rare and valuable
gemstone. More rare than
diamond and few new deposits
are found. Ruby and Sapphire
are the same mineral
corundum and the red varity
is Ruby. The adorable red
color comes from small
elements of Cromium.
Wellknown deposits in Sri
Lanka, Thailand, Vietnam och
Burma. The largest deposit
and production this days from
Madagascar. |
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Featured Products in Rubys |
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Mozambique Ruby 3,10 Ct Round 8,50-8,45x5,21 mm SI-I1
1.550:- |
IGI Certified Blood Red Burma Ruby 0,57 Ct Oval VVS-VS
2.500:- |
Certified Top Blood Red Ruby 11,15 Ct Cushion 13,86x11,23x7,7 mm
11.650:- |
IGI Certified Blood Red Burma Ruby 0,53 Ct Oval VS-SI
1.750:- |
Madagascar Ruby 3,10 Ct Oval 9,6x8,1x3,9 mm VS-SI
1.999:-
1.000:- |
IGI Certified Blood Red Burma Ruby 0,59 Ct Oval SI
1.900:- |
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New Products For February |
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Cert. Star Ruby 15,31 Ct Oval Cab 13,43x11,77x9,18 mm
2.031:- |
EGL Certified Red Burma Ruby 0,43 Ct Oval VVS-VS
1.750:- |
IGI Certified Red Burma Ruby 0,52 Ct Oval SI-I1
1.550:- |
Cert. Untreat. Blood Red Ruby 1,47 Ct Heart 7,18x6,20x4,02 mm SI
4.175:- |
Mozambique Ruby 3,45 Ct Pear 13,5x7,3x4,3 mm I1
1.035:- |
Ruby 6,47 Ct Round Cab 10,2x5,9 mm
970:- |
Ruby 3 Ct Rund app. 7,6-8,0 mm
450:- |
Ruby 1,4-1,6 Ct Oval app. 7x6 mm
210:- |
Ruby 1,75-2,0 Ct Oval app. 8x6 mm
263:- |
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