Researchers showed that diamonds with color center defects can act as nonlinear optical materials for second-harmonic photon generation. This discovery can pave the way for completely light-based ...

Nitrogen-vacancy centers -- flaws in a diamond's crystal lattice that produce color -- have received much attention for their sensitivity to magnetic fields. Researchers have now used N-V diamond ...

Jeweler Harry Winston donated the famous Hope Diamond—the largest-known deep blue diamond in the world—to the Smithsonian Institution in 1958. It arrived in a plain brown package by registered mail, ...

Deformation, impurities, radiation — many factors lend unexpected color to a diamond. By C. Claiborne Ray A. In diamonds, unexpected colors may arise in a variety of ways. These include small and ...

Is the global turmoil driving sales of portable assets? Or is it just a love of rare jewels? By Jill Newman Alisa Moussaieff was in her London office on May 14, having lunch and bidding over the phone ...

Tsukuba, Japan - Researchers from the Department of Applied Physics at the University of Tsukuba demonstrated second-order nonlinear optical effects in diamonds by taking advantage of internal color ...

Jeweler Harry Winston donated the famous Hope Diamond—the largest-known deep blue diamond in the world—to the Smithsonian Institution in 1958. It arrived in a plain brown package by registered mail, ...