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KNOWLEDGE
These are some of our gemstone knowledge presentations, gemology news update and exciting events. Let's share the knowledge and passion!

Heat-treated Thai Ruby
Heat-treated Thai Ruby
29 December, 2021
Heat-treated natural Thai ruby - Melt relic with "lacy" fingerprint and Frosty crystal.
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A view in a composite ruby
A view in a composite ruby
28 December, 2021
An abundance of gas bubbles can be seen in this composite ruby with blue flashes in the background, creating eye-catching colour contrast. Composite ruby means heavily fractured stone filled with glass, the glass is significantly more than the ruby itself. It is also possible with many tiny pieces of ruby assemble together with glass. This type of material can't be considered a natural ruby.
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The Quality and Admiration Factors of Paraiba Tourmaline
The Quality and Admiration Factors of Paraiba Tourmaline
22 November, 2021
In 1988, a brilliant variety of elbaite tourmalines were discovered in Paraiba, Brazil. The colour of these tourmalines were of vivid neon/electric colour. The cause of their attractive colours was the presence of copper and manganese.
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The Quality and Admiration Factors of Tanzanite
The Quality and Admiration Factors of Tanzanite
10 September, 2021
When the President of Tiffany & Co, first saw the gemstone he declared it to be "the most beautiful gemstone to be discovered in 2000 years".
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The Quality and Admiration Factors of Jadeite
The Quality and Admiration Factors of Jadeite
27 August, 2021
Jadeite is a timeless beauty and treasure as beloved today as it has been throughout the ages especially in China. The Chinese associate jadeite with clarity of mind and purity of spirit. In Central America, the Mayans and the Aztecs prized jadeite too.
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The Quality and Admiration Factors of Turquoise
The Quality and Admiration Factors of Turquoise
20 August, 2021
Turquoise is one of the world’s most ancient gems, perhaps dating back to 6000 BC. The earliest evidence of turquoise gemstones comes from ancient Egyptian tombs.
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The Quality and Admiration Factors of Aquamarine
The Quality and Admiration Factors of Aquamarine
16 August, 2021
The name aquamarine is derived from two Latin words, Aqua meaning “water” and marina meaning “of the sea”. In ancient times, Roman fisherman used it as protection, for safe travel by boat, and for luck in catching fish.
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