Amazing color-change Alexandrite
Alexandrite is a variety of chrysoberyl, which ideally shows a distinct colour change from green in fluorescent light or daylight to red in...
Read MoreSri Lanka gems
A gemstone is the naturally occurring crystalline form of a mineral which is desirable for its beauty, valuable in its rarity, and durable...
Read MoreChoosing a Ruby
The most important factor in the value of a ruby is colour. The top qualities are as red as you can imagine: a saturated pure spectral hue...
Read MoreMogok City, the mines & the rubies
Some two hundred kilometres north-east of Mandalay in Myanmar lays Mogok, for centuries the ruby...
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