In a previous color, we’ve talked about what makes things colored — the way objects absorb, reflect, or transmit light at different wavelengths. But let’s be a bit more specific. What gives ...

And size matters as much for white diamonds as it does for coloured gems. The largest white diamond ever to appear at auction will be leading the Christie’s Geneva Magnificent Jewels sale on 11 May.

Holi, the festival of colors, celebrates unity and joy. Similarly, nature crafts its own colorful masterpieces—natural colored diamonds—over billions of years. These rare gems, varying from pinks to ...

Adding a sprinkle of graphical flare made a lot of sense, and in October 1998, Nintendo made it happen with the Game Boy Color. The system still didn't have a backlight, but it was better than ...

Within the Moussaieff collection there are also some of the most unique and rare coloured gemstones, from a lustrous and limpid blue 180ct star sapphire to a necklace containing a multitude of 20ct ...