13/06/2018
• Stacey Lim
One of the oldest minerals found in the Earth’s crust, zircon has long being used as a substitute for diamonds. STACEY LIM provides some background.
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08/05/2018
• Stacey Lim
Throughout history, sapphire has always been associated with the colour blue. This still rings true today, with many consumers unaware of the other coloured varieties available. STACEY LIM reports.
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29/03/2018
• Stacey Lim
Desire for ruby today is as great as ever. With fluctuating quality and supply, and a high demand for stones over one carat, this blazing beauty can demand the highest price per carat of any coloured gemstone.
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06/03/2018
• Stacey Lim
The diamond industry is built on a foundation of colourless gemstones but vivid-colour varieties are also highly valued and steadily increasing in popularity. STACEY LIM reports.
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08/02/2018
• Stacey Lim
Forming deep within the Earth’s mantle, peridot is no stranger to heat and pressure. This green mineral may also be of extra-terrestrial origin, transported within meteorites from the depths of the universe, impacting the Earth in rare, cataclysmic events. STACEY LIM reports.
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23/11/2017
• Victor Tuzlukov
The commercial realities of gem-cutting means there is little emphasis placed on high-quality gemstone faceting. VICTOR TUZLUKOV discusses why this is detrimental to the industry and its future.
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23/10/2017
• Stacey Lim
The unexpected flash of colour and light rolling along the surface of a gemstone can be awe-inspiring. STACEY LIM reports that labradorite captures this spectacular effect known, eponymously, as labradorescence.
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20/09/2017
• Stacey Lim
The spectacular phenomenon of colour change can only be seen in a small handful of gemstones. The garnet group, usually recognised for its rich reds, can supply fine examples of this playful effect. STACEY LIM reports.
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04/09/2017
• Stacey Lim
The beryl family includes some of the world’s most loved gemstones. STACEY LIM reports that varieties of beryl are prized for their hardness, transparency and range of beautiful colours.
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27/07/2017
• Stacey Lim
Emerald by day and ruby by night, alexandrite is perhaps the best example of the magical colour-changing variety of gemstones. STACEY LIM reports.
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27/07/2017
• Emily Mobbs • Editor
In a difficult climate, coloured gemstones are offering jewellers an opportunity to stand out. EMILY MOBBS investigates current market trends for this colourful sector.
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23/06/2017
• Stacey Lim
The quality of colour can be dissected into vibrancy, evenness, pattern and, in some cases, uniqueness; however, what on earth causes it? This series is dedicated to exploring the different causes of colour in gemstone minerals. STACEY LIM reports.
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