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Pure Carbon Lab-Diamonds
Diamond Nexus Labs produces a range of pure-carbon lab-created diamonds. These stones duplicate the chemical properties of earth-mined diamonds as well as the optical and the physical properties. (Diamond Nexus simulants replicate the optical; how it looks, and physical; how it wears properties of mined diamonds but not the chemical properties). Our pure-carbon series replicates all three.
Pure carbon gemstones are not available in white (clear) color. They are available in yellow, pink and blue.
Our pure carbon stones are significantly more expensive then our hybrid stones, and, though they are still distinguishable from an earth-mined diamond with scientific testing, they offer those with an interest in gemstone chemistry an added dimension.
Our pure-carbon lab-created diamonds begin with a tiny seed of natural diamond. In a crystal growth chamber, each seed is bathed in a solution of graphite and a metal-based catalyst at very high temperatures and pressures. Under highly controlled conditions, the small diamond seed begins to grow, molecule by molecule, layer by layer, emulating nature's process. Over the course of several weeks, a pure carbon crystal up to 10 carats can be grown. The crystal, however, at this point has a tinge of color to it and cannot be used as a colorless stone. Natural coloring agents are added in a controlled fashion to produce the stones color. Currently no technology exists to consistently produce white pure-carbon lab-created diamonds at a commercially viable price. We are able to produce white pure-carbon stones, but it is difficult and the cost is prohibitive.
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FAQ - Cont'd....
All Diamond Nexus stones are perfect "D" (colorless), F or IF (flawless) clarity, and are Ideal Cut.
Most people, including most jewelers, have never even seen a flawless, "D" color, ideal cut stone.
They are used to seeing the flawed, off-color, poorly cut stones that a lot of retail jewelers sell, and so they
are taken aback by the clarity, fire and brilliance of the Diamond Nexus stone. The DNL stone looks exactly like
a perfect diamond. It's what a perfect diamond should look like, and what the beautiful diamonds that were sold
fifty years ago mostly did look like.
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The situation with colored stones is even worse, as there is not even a generally accepted and publically known
rating scale for color stones; jewelry retailers are free to call any stone "fine quality". Unfortunately this has
led to a situation where most emeralds, rubies and sapphires being sold on the market today have a dead, lifeless
color, poor cut and are not at all a good representation of how wonderfully beautiful a colored gemstone can be.
Many people have never seen a beautifully colored, finely cut, geologically perfect ruby, emerald, or sapphire—natural
ones cost many thousands of dollars and they are amazed when they see the beauty of our stones.
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