ARTICLES
A Photomicrographic Compilation of Inclusions in Quartzes
Silicon dioxide, SiO2, is one of the most abundant and least expensive gem materials, and is greatly appreciated by lapidaries. Varieties include macro-crystalline versions such as colourless rock crystal, citrine, amethyst, smoky quartz, rose quartz and prasiolite. There are also...
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The Early History of Synthetic Diamond
As synthetic diamonds become increasingly prominent in the jewellery market, this article honours the incremental steps taken by scientists, over a quarter of a millennium, to understand and ultimately replicate the world’s most valuable gemstone. This story begins in the...
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Argyle Violet Diamonds
Knowledge and understanding of violet diamonds from the Argyle diamond mine in Western Australia have taken second place behind the deposit’s famous pinks. For much of the mine’s life, the stones were referred to as blues.
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World of Wonder: Margot McKinney Exhibition at the Museum of Brisbane 18 June to 6 November, 2022
On 5 August, a delighted group of members of the National Council of Jewellery Valuers came together to spend an evening with jewellery designer, Margot McKinney, at the Museum of Brisbane.
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A White Diamond
Colourless or near-colourless diamonds are often referred to as white diamonds, however, there is a fancy colour called ‘white’. Such diamonds have a strong milky appearance and are not to be confused with highly fluorescent diamonds that are also termed...
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