Chinese scientists make ‘super diamond’ 40% harder than real thing - Material may find applications in machining, drilling, ...

Grown Brilliance Engagement Ring Setting Giveaway for ... Just as the name hints at, lab-grown diamonds are pure carbon gemstones created in controlled laboratory settings. According to Grown ...

But what if couples could save up to 90% on a diamond ring and no one would ever know ... high-temperature methods or chemical vapor deposition from pure carbon crystals in controlled environments.