The high-tech process has the power to transform the least valuable colored diamonds into the most valuable. That may explain why, after 12 years, it still makes the market uneasy. Twelve years ago ...

Suncrest Diamonds, a sister company to Sundance Diamonds, will launch the industry’s first collection of branded high pressure high temperature processed yellow diamonds at JCK Las Vegas, called ...

Washington, D.C. Researchers at the Carnegie Institution's Geophysical Laboratory have learned to produce 10-carat, half-inch thick single-crystal diamonds at rapid growth rates (100 micrometers per ...

Researchers at the Carnegie Institution of Washington, D.C. have produced 10-carat, half-inch thick single-crystal diamonds at rapid growth rates (100 micrometers per hour) using a chemical vapor ...

Researchers at the Carnegie Institution's Geophysical Laboratory have learned to produce 10-carat, half-inch thick single-crystal diamonds at rapid growth rates (100 micrometers per hour) using a ...

South Korean scientists say they have developed a new method that creates high-quality synthetic diamonds in just three hours. Scientists from South Korea’s Institute for Basic Science (IBS) published ...

The original method is called High-Pressure High-Temperature, or HPHT for short.Think of it as a brute-force approach. Scientists essentially trap a tiny diamond "seed" inside a chamber, throw in some ...

Diamonds form deep within the Earth's mantle, around 250 kilometers below the surface, where immense pressure (up to 10 GPa) and temperatures (around 2,200 °C) compress carbon into diamonds over ...