Summary Figure 1: The world's first synthetic diamond ring. (Image courtesy of Dutch Diamond Technology Corporation DD) According to Diamonds.net, February 10th: Antwerp's HRD Labs conducted the world's first fully diamond-made ring made of laboratory...

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Figure 1: The world's first synthetic diamond ring. (Image courtesy of Dutch Diamond Technology Corporation DD)

According to diamond online (diamonds.net) reported on February 10th: Antwerp's HRD laboratory has identified and ranked the world's first fully diamond-made ring produced by the laboratory.

The "Diamond Ring" is produced by the Dutch Diamond Technology Company and is made of 155ct chemical vapor deposition (CVD) synthetic diamond transparent plate material. The finished diamond ring has a weight of 3.87ct, color E, and clarity of VVS2. The company named the diamond ring "Project D" to celebrate its 10th anniversary. It took a year for the Diamond Ring to be produced, with 133 aspects.

The following is the HRD test report for this Diamond Ring D Project (Project D):

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This "Project D Diamond Ring" is not the world's first "full" diamond ring. It is reported that in 2011, Swiss jeweler Shawish displayed a "full" diamond ring made of natural single crystal diamonds. The work refers to a ring weight of 150ct, worth 70 million US dollars, and it took a year to build. Here's a picture of the world's first "full diamond" ring:

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The world's first natural diamond ring. The picture is from the web.

In addition, in December 2018, Sotheby's (pre-) auctioned a "full" diamond ring synthesized by the laboratory. The work was designed by Apple Chief Design Officer Sir Jony Ive and industrial designer Mark Newson for Diamond Foundry for $256,250. However, it has not yet been produced because it is waiting for the buyer's finger lap number (specified for the buyer).

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In December 2018, Sotheby's (pre-) auctioned the laboratory's "full" drill ring, it is said that the finished product will have 2000-3000 facets and use laser cutting technology.

Grinding Heads

Grinding head is a kind of small handle grinding tools, used in electric mills, hanging mills, hand electric drills. There are many kinds of diamond grinding head, ceramic grinding head, rubber grinding head, diamond grinding head, emery cloth grinding head.

Ceramic grinding head: grain size sand (generally brown corundum, white corundum, chrome corundum, silicon carbide) sintered by ceramic binder, with a metal handle in the center. Mainly grinding all kinds of metal, for grinding the inner wall of aperture, mold correction. Rubber grinding head: fine sand is synthesized by rubber binder for the polishing of mould

Diamond grinding head: A kind of stone material, ceramic materials and other non-metallic materials of grinding tools, especially involving a with diamond alloy grinding tools for grinding body, it includes substrate and a mill body, in which several mill body clearance to fixed to the substrate, the grinding surface of the grinding head grinding body also set a clearance, among them, the substrate is best by a certain toughness of adhesive materials, The grinding body is preferably made of diamond alloy material. The utility model has the advantages of high grinding performance, simple manufacturing and low cost, high grinding quality and being suitable for large-scale grinding

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