Total 8154 products for how do you color diamonds Manufacture & Suppliers

• DEF Color 4.0ct 4.5ct 5.0ct HPHT Lab Grown Diamonds Yuda Crystal For Jewelry

  

  ... and opaque under transmitted light, and appear metallic under reflected light. This is because during the growth of HPHT diamonds, metals used as catalysts sometimes enter the diamond crystals. These co-sol...

  Henan Yuda Crystal Co.,Ltd

  Henan,China

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• 11.0ct 12.0ct 13.0ct 14.0ct HPHT Lab Grown Diamonds Big Size DEF Color

  

  ...Color HPHT Lab Grown Diamonds for making 3 carat plus HPHT loose diamonds HPHT Lab Grown Diamonds Description HPHT synthetic diamonds usually contain metal co-solvent inclusions, which are black and opaque u...

  Henan Yuda Crystal Co.,Ltd

  Henan,China

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• 5mm To 7mm DEF Color Rough HPHT Diamond Rectangular Shape

  

  ...Color Rough HPHT Diamond Price Per Carat HPHT Lab Grown Diamonds Description The laboratory-grown diamonds are grown in the laboratory, they are composed of carbon atoms, have the same physical properties an...

  Henan Yuda Crystal Co.,Ltd

  Henan,China

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• 1mm To 20mm White HPHT Rough Lab Grown Diamonds VVS VS SI Clarity DEF Color

  

  ...Diamonds Vvs Vs Si Clarity And DEF Color White Hpht Rough Lab Grown Diamonds Description Laboratory diamonds, known as synthetic diamonds. At present, there are two methods of artificial cultivation of diamo...

  Henan Yuda Crystal Co.,Ltd

  Henan,China

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• Round Brilliant Cut Certified Synthetic Diamonds 9mm Excellent Cut

  

  ... by 4C's. What 4C's stands for? 4C's means Cut, Color, Clarity and Carat. The details as below: Cut: quality of angles, proportions, faces and finishing details Color: how colorless diamonds are Clarity: how...

  Henan Yuda Crystal Co.,Ltd

  Henan,China

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• 3.0 Carat 3.5 Carat 4.0 Carat HPHT Diamond Rough Uncut White D E F Color VS SI

  

  ... made in the laboratory are simulated diamonds. In fact, they are 100% real because they are chemically and structurally identical to the diamonds mined by the earth. In fact, any jeweler can use the technol...

  Henan Yuda Crystal Co.,Ltd

  Henan,China

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• 8.0ct 9.0ct 10.0ct HPHT Lab Grown Diamond Big Size VS SI D F Color

  

  ...Color 8.0-10.0ct Lab Grown Diamond Hpht For Big Sizes Lab Diamond Rings Making Lab Grown Rough Diamonds Description You may have heard that diamonds come from coal. In fact, it takes 3.3 billion years for di...

  Henan Yuda Crystal Co.,Ltd

  Henan,China

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• White DEF Color Rectangular HPHT Lab Grown Diamonds VS SI

  

  ... of view, diamond is a carbon elemental crystal and its composition is the same as that of coal and graphite. However, although the coal and graphite we see in our lives are all black, diamonds are not black...

  Henan Yuda Crystal Co.,Ltd

  Henan,China

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• Bigger Size White Color Lab Created Diamonds Synthetic For Lab Loose Diamond

  

  ... in the high-temperature zone of the top press growth chamber, and place natural or lab created diamond seeds in the low-temperature zone. Driven by a certain temperature gradient, carbon will diffuse from a...

  Henan Yuda Crystal Co.,Ltd

  Henan,China

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• DEF Color HPHT Lab Grown Diamonds VVS VS SI Clarity White 1ct-1.5ct

  

  ..., lab grown diamonds made in a lab can take as little as a few weeks. At present, there are two main ways to make lab grown diamonds. One is high pressure and high temperature. During diamond cultivation, th...

  Henan Yuda Crystal Co.,Ltd

  Henan,China

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• Uncut HPHT Lab Grown Diamonds DEF Color VVS VS SI Clarity For Jewelry

  

  ... grown by high pressure and high temperature and precipitation methods. Its growth concept is to use small diamonds as "seeds", through technical means to simulate the growth environment of natural diamonds,...

  Henan Yuda Crystal Co.,Ltd

  Henan,China

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• 4.5g 6.5g 18K Gold Diamond Rings Couples Cross Promise Rings

  

  ...Diamond Rings Engagement Wedding Couples' 2 Tone Colors Jewelry Type Couples' Wedding Ring Main Material 18K Solid Rose Gold/ White Gold/ Yellow Gold/Pt Or Customized Type 18K 2 Tones Gold Diamond Ring Metal...

  Guangzhou Yujinfu Jewelry Factory

  China

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• 0.6-4.0 Carat Round Loose Lab Grown Diamonds DEF Color VVS VS SI Purity

  

  ...o 10 grades, among which diamond is the highest grade. Ever since it was known that diamonds were made of pure carbon, more and more people have been working on high-temperature and high-pressure diamonds in...

  Henan Yuda Crystal Co.,Ltd

  Henan,China

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• 3-4.0ct Uncut HPHT Rough Lab Grown Diamonds DEF Color VVS VS SI Clarity

  

  ...CVD) or high pressure and high temperature (HPHT), and its quality is similar to that of natural diamond. The molecular structure of the synthetic diamond is not the full octahedral structure of natural diam...

  Henan Yuda Crystal Co.,Ltd

  Henan,China

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• 18K Gold Diamond Pink-Blue Gemstone Bangle 0.24ct 13 mm Diameter of the Flower

  

  ...Diamond Pink-Blue Gemstone Bangle 0.24ct 13 mm Diameter of the Flower Jewelry Type Pink-Blue Gemstone Flower Bangle Main Material 18K Solid Rose Gold/ Yellow Gold/White Gold/Pt Or Customized Type 18K Gold Di...

  Guangzhou Yujinfu Jewelry Factory

  China

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• White Color Lab Grown HPHT Loose Diamond With IGI Certification

  

  ... Pressure High Temperature.Laboratory diamonds are generally produced by chemical vapor deposition (CVD) or high pressure and high temperature (HPHT) processes and are of similar quality to natural diamonds....

  Henan Yuda Crystal Co.,Ltd

  Henan,China

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• Pear Cut White Color Polished Lab Created Diamond Loose Gemstones For Jewelry

  

  ...Diamond White Color Polished Lab-created Diamond Loose Gemstones for Jewelry Diamond Clarity Clarity measures the incidence of natural inclusions or imperfections found in a diamond. Diamonds graded SI2 or b...

  Henan Yuda Crystal Co.,Ltd

  Henan,China

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• Small Size Fancy Cut Lab Diamonds 10ct Round Brilliant White Color For Jewelry

  

  ... by high temperature, high pressure and meteorological precipitation. The growth idea is to use small diamonds as "seeds" to simulate the growth environment of natural diamonds through technical means, so th...

  Henan Yuda Crystal Co.,Ltd

  Henan,China

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• White Color IGI Certified Brilliant Cut Lab Diamond 1.0ct 2.0ct 3.0ct Round For Ring

  

  ... are artificially grown through high temperature, high pressure and meteorological precipitation. The growth idea is to use small diamonds as "seeds", simulate the growth environment of natural diamonds thro...

  Henan Yuda Crystal Co.,Ltd

  Henan,China

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• Oval Brilliant Cut Lab Created Pink Diamonds 10 Mohs Pink Loose Diamond

  

  ...Color Grade : Fancy ~ Fancy Light 5. Clarity Grade : VS-VVS 6. Carat Weight : 1.0ct ~ 1.99ct Product Description: Lab grown diamond is used by natural diamond crystals to imitate its growth environment, so b...

  Shenzhen ZKZ Jewelry Co., Ltd.

  Guangdong,China

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