the "diamond" doesn't have the proper light dispersion properties that real diamonds possess. About 30% of diamonds will glow blue under ultraviolet (UV) lights (such as black lights). On the ...

After years of disavowing the authenticity of man-made diamonds grown in a laboratory, De Beers has suddenly seen the light and responded ... on colored pink and blue stones to compliment the ...

A 5.72-carat fancy intense blue diamond sold for more than $8.8 million, making it the top lot of a varied and successful Christie’s Magnificent Jewels auction held Tuesday in New York.