Cts Natural Violet
Life Cycle of Diamond
Every body knows that diamonds is most beautiful stones in over the entire world but a very few people know that what is diamonds and where is it found? Diamond may be up to 3 billion years old, which is much older than their surface host rock. Diamond crystallization originates some 200 kilometers, or 320 miles, beneath the surface and the disaggregated crystals are merely transported to the surface via kimberlitic and lamproite pipes. These igneous host rock formations are roughly cylindrical in shape and act as a conduit from the Earth’s mantle to the continental crust. Today, 75-80% of the world’s natural diamonds are used for industrial purposes and 20-25% for gemstones. Diamond may even be found in meteorites.
Diamond is a colorless exceptionally hard mineral (but often tinted yellow, orange, blue, brown, or black by impurities), found in certain igneous rocks esp. the kimberlites of South Africa. It is used as a gemstone, as an abrasive, and on the working edges of cutting tools. Composition: carbon. Formula: C. Crystal structure: cubic. Name derived from the Greek adamas meaning invincible. Relative density 3.50- 3.52. Cleavage eminent along octahedral faces. Fracture conchoidal. Tenacity brittle. Luster brilliantly adamantine. Refractive index 2.417- 2.419. Dispersion strong 0.044. Diamond crystals form as cubes, octahedral, the most common gem form, and dodecahedra. Colorless to yellow diamonds, which have a strong absorbtion line in the violet end of the spectrum, are members of the Cape series.Color is usually pale yellow to colorless, but can also be brown, blue, green, orange, red, and black.
The most famous diamond bearing country is South Africa. The first diamond was reported in 1866. By 1869 an 83.5-carat diamond had been found and was named The Star of Africa. It was subsequently cut into a pear shape brilliant weighing 47.74 carats. The Golconda area of Southern India has been the source of some famous diamonds such as the Koh-i-nor (mountain of light 186cts cut to 108.92 cts and now in the Tower of London) and Jehangir. Diamond is widespread in Brazil, most stones being small but of good gem quality. Alluvial diamonds have been found in most states of the USA. White and fancy colored diamonds such as pinks and pinkish browns are mined at Argyle in North Western Australia. Other important producers are Russia, now the fourth largest producer, and China.
Courtesy- http://www.djewels.org
About the Author
Djewels is Manufacturer, Wholesaler & Exporter of 100% Hall Marked, Customize & Certified Designer Diamond Jewellery in 18 K / 14 K Yellow / White / Pink Gold and Kundan Polki Jewellery in 22KT.
Soft Violet Tourmaline(Copper Bearing) 1.10Ct
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2.24CTS “IF” NATURAL AAA VIOLET BLUE TANZANITE LONG CUSHION $199.00 |
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2.32CTS NATURAL RARE AAA VIOLET BLUE TANZANITE OVAL $199.00 |
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0.97CTS NATURAL VIOLET BLUE TANZANITE OVAL NICE PAIR $9.98 |
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4.55CTS “IF” TOP MATCH PAIR NATURAL AAA VIOLET BLUE TANZANITE TRILLION $499.00 |
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4.25CTS “IF” TOP MATCH PAIR NATURAL AAA VIOLET BLUE TANZANITE TRILLION $499.00 |
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0.94CTS NATURAL VIOLET BLUE TANZANITE OVAL NICE PAIR $9.98 |
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0.92CTS NATURAL VIOLET BLUE TANZANITE OVAL NICE PAIR $9.98 |
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CERTIFIED! 3.56 CTS NATURAL VIOLET SPINEL $1,400.00 |
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1.55cts. UNHEATED NATURAL VIOLET SPINEL OVAL CEYLON $1.25 |
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2.57cts. UNHEATED NATURAL VIOLET SPINEL CUSHION CEYLON $9.17 |
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0.64cts. UNHEATED NATURAL VIOLET SPINEL CUSHION CEYLON $0.99 |
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0.59cts. UNHEATED NATURAL VIOLET SPINEL CUSHION CEYLON $0.99 |
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2.27cts. UNHEATED NATURAL VIOLET SPINEL CUSHION CEYLON $3.47 |
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Excellent 0.97Cts Violet Blue Natural Tanzanite Pear Loose Gemstone $87.30 |
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6.22cts Mind Boggling Rarest UNHEAT 100%Natural Violet Blue Tanzanite $250.00 |
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Flawless 2.70 Cts Natural Bi Color Violet Blue Tanzanite Full Fire Luster Oval $51.00 |
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1.21 Cts FINE QUALITY SPARKLE NATURAL VIOLET BLUE TANZANIA TANZANITE $9.99 |
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1.54 Cts FINE QUALITY SPARKLE NATURAL VIOLET BLUE TANZANIA TANZANITE $10.49 |
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1.46 Cts100 % Natural Nice Violet lite Blue Top Tanzanite Cut (lot 17 c ) $24.99 |
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1.42 Cts100 % Natural Nice Violet Blue Top Color Tanzanite Cut (lot 10 D ) $39.99 |
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2.04 Cts100 % Natural AAA Violet Blue Top Color Tanzanite Pear Cut (lot 4 E) $48.99 |
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1.32 Cts100 % Natural Nice Violet lite Blue Top Color Tanzanite Cut (lot 04 c ) $29.99 |
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1.07 Cts100 % Natural Nice Violet lite Blue Top Color Tanzanite Cut (lot 03 c ) $24.99 |
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1.68 Cts100 % Natural Nice Violet Blue Top Color Tanzanite Cut (lot 16 D ) $44.99 |
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1.92 Cts100 % Natural Nice Violet Blue Top Color Tanzanite Cut (lot 18 D ) $44.99 |
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2.28 Cts100 % Natural Nice Violet Blue Top Color Tanzanite Cut (lot 28 e) $49.99 |
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1.22 Cts100 % Natural Nice Violet lite Blue Top Tanzanite Cut (lot 15 c ) $24.99 |
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1.12 Cts100 % Natural Nice Violet lite Blue Top Tanzanite Cut (lot 19 c ) $24.99 |
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1.93 Cts100 % Natural Nice Violet Blue Top Color Tanzanite Cut (lot 22 D ) $44.99 |
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1.57 Cts100 % Natural Nice Violet Blue Top Color Tanzanite Cut (lot 09 D ) $49.99 |
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1.72 Cts100 % Natural Nice Violet lite Blue Top Tanzanite Cut (lot 35 D ) $24.99 |
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12.24cts-Lustrous Natural Mozambique Needles AAA Violet Copper Tourmaline Brazil $1,299.00 |
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1.74 CTS FANTASTIC LUSTER VIOLET BLUE UN HE HEAT NATURAL SRI LANKA SPINEL GEM $9.99 |
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0.95CTS NATURAL VIOLET BLUE TANZANITE OVAL NICE PAIR $9.98 |
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OVAL 1.88 Cts DAZZLING HUGE SPARKLE VIOLET BLUE NATURAL TANZANITE $9.99 |
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1.88 Cts DAZZLING HUGE SPARKLE VIOLET BLUE NATURAL TANZANITE $9.99 |
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OVAL 1.26 Cts DAZZLING HUGE SPARKLE VIOLET BLUE NATURAL TANZANITE $9.99 |
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107.36CTS MASSIVE CUSHION CUT GHI LAB CERTIFIED NATURAL LIGHT VIOLET AMETHYST $99.00 |
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1.87 Cts DAZZLING HUGE SPARKLE VIOLET BLUE NATURAL TANZANITE $9.99 |
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8.65CTS VERY BEAUTIFUL 100% NATURAL VIOLET COLOR AMETHYST CARVING $9.99 |
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Natural Violet Blue Tanzanite Loose Gemstone Pear Cut 4.80cts 10*8mm Untreated $800.00 |
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Natural Violet Blue Tanzanite Loose Gemstone Pear Cut 4.15cts 11*7mm Untreated $700.00 |
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0.95CTS NATURAL VIOLET BLUE TANZANITE OVAL NICE PAIR $9.98 |
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Sapphire Violet/pink color changer natural Sri Lanka 10×8.4mm oval VVS 4.07cts $199.99 |
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0.94CTS NATURAL VIOLET BLUE TANZANITE OVAL NICE PAIR $9.98 |
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Excellent 0.65Cts Violet Blue Natural Tanzanite Loose Gemstone $49.50 |
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3.18cts Violet Blue Pear Blue Sapphire Natural Loose Gemstone $0.99 |
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1.26 Cts DAZZLING HUGE SPARKLE VIOLET BLUE NATURAL TANZANITE $9.99 |
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1.75 Cts Marvelous Eyecatching Violet Blue Natural Tanzanite NR $139.99 |
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1.61 Cts DAZZLING HUGE SPARKLE AAA VIOLET BLUE NATURAL TANZANITE $9.99 |
