Across Australia, history enthusiasts are having serious fun with medieval times through dedicated clubs, and finding ...

The various internal features, called inclusions, inside gemstones not only provide clues ... especially for the big three colored stones – ruby, sapphire and emerald. Treatments vary from the use of ...

The clarity of a diamond measures whether there are any inclusions or blemishes on the ... Another elegant option is an emerald-cut diamond. Landau says the rectangular-shaped diamond features ...

This 1.17 ct emerald was obtained for GIA’s permanent reference collection (sample number 100305160993) at a street market in Kabul, Afghanistan, for its very unusual inclusion scene. The stone was ...

From 2011 to 2014, his geology blog was hosted by Scientific American and now, for almost one decade, by Forbes. He covers unfolding ...