Diamonds Education

Regarded as the Premier Simulated Diamonds in the world, Our Diamond Simulants are carefully crafted to be nearly flawless and colorless in every way. They resemble the same optical characteristics, have the ability to cut glass and can be shaped into all the same styles as natural diamonds. In most experts’ opinions, Our Diamond is a superior alternative to a natural diamond because for the same cut, clarity, color and carat of a natural diamond that would fetch tens of thousands of dollars, our simulated diamonds of VVS1 quality rating are a mere fraction of the cost.

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It is almost impossible to the naked eye to distinguish the Pure-Gems Simulated Diamonds from a real natural diamonds. Because they resemble the same optical characteristics, radiance and beauty as a natural stone even jewelers have a hard time telling the difference; and because they are not created from carbon, they don’t have any imperfections or inclusions.

How are they made?
All lab created diamond simulants are manufactured with a process called the “skull melt” in which the materials heat up from the inside outwards. The outside remains relatively cool while the inside melts, forming its own outer crust or “skull”. Only with extreme heat is the “preferred cube form” obtained and a metal oxide stabilizer is added to the process to ensure isometric cubic crystals. When the heat is switched off, the product then cools under rigidly controlled conditions and hardens. As it hardens, the solid crystals are formed. Because they are grown in a controlled environment, the crystals are also perfect in structure, without feathers or inclusions and since they are solid and not composed of layers, they are almost as hard as a natural diamond. Due to their hardness and clarity the crystals can be cut using the same proportions used with fine diamonds, therefore creating hundreds of facets and mimicking the brilliance of diamonds.

 The brilliance and hardness of our finished crystals can vary slightly, so measurements for color, hardness and gravity are given in ranges.
 Color: D – F (on the diamond scale) Hardness: 8.6 – 8.9 (Mohs hardness scale) Specific Gravity: (5.8 – 6.0) Crystal Form: (Isometric) Brilliance: Excellent (7.40) Refractive Index: (2.20) Dispersion: (0.56)
 In recent years, manufacturers have tried different ways to distinguish their products. Some companies claim to use such processes as DLC (Diamond-Like-Carbon). The Amorphous Diamond is another such innovation, coating a Cubic Zirconia with a film of diamond-like carbon (DLC). Another technique is “Vacuum Sputtering” in which an extremely thin layer of metal oxide (usually gold) is coated onto the stones to create iridescence. Marketed as “Mystic” the material is unlike DLC, in that it isn’t permanent. The metal oxide layer is easily removed by abrasion.
 All of these simulants start with the same manufacturing process and none of them are made from pure carbon and therefore do not have the same chemical composition as a natural diamond. If they did – they would sell for thousands just the same as natural stones.
 Regardless of these innovations and processes which are all aimed to improve their refractive index and to achieve a diamond like signature under Raman Spectroscopy – a device that identifies an object’s crystal structure; the most important step in the manufacturing process is the final step – the cutting and polishing – this is what makes the difference between them.
 The faceting and polishing is the most crucial aspect of the stone and here is where you get the different qualities. Our stones are Cut and Polished for maximum brilliance. The amount and precision of facets cut into the stone is what determines the different qualities of diamond simulants. The fluorescence, fire and sparkle of the stone can only be achieve by the amount of light that refracts from within the stone and this can only be achieved by the faceting and polishing of the stone. That’s why they are the only ones in the market that come a written lifetime warranty that will never fade and loose their brilliance.

 

We invite you to see for yourself why smart buyers have made Pure Gems Simulated Diamonds their natural choice.

 

 

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