14/11/2023
• Mikaelah Egan
The latest addition to this series of gemmologists who left their mark on the world of gemstones and jewellery is a man who likely contributed to the education of many readers of Jeweller.
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19/11/2021
Jeweller explores the captivating hues of orange and yellow gemstones, from the rich gold of topaz to mandarin garnet, fresh citrine, and smouldering fire opal.
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02/09/2021
Jeweller discovers the chemical and structural causes of colour in captivating natural blue and green gemstones, from Ceylon sapphires to imperial jade.
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21 Images
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01/09/2021
• Mikaelah Egan
Opal is famous for the incredible array of colours displayed, from vibrant reds – the most prized – to velvety purples and everything in between.
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10/08/2021
• Justin K Prim
Justin K Prim explores the fascinating variety of coloured gemstone cuts and how each one enhances the rough crystal to its full potential.
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03/08/2021
• Mikaelah Egan
Diaspore derives its name from the Greek word diaspora – meaning ‘to scatter’. The prized colour-change varieties may be better known as Csarite or, formerly, Zultanite.
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02/12/2020
• Susan Hartwig
Lapis lazuli, often shortened to lapis, gained its name from Latin and Persian origins – lazhuward meaning ‘blue’ in Persian and lapis meaning ‘stone’ in Latin. The gem has been highly prized for thousands of years, being used in jewellery, carvings, seals and decorative items.
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13/10/2020
• Susan Hartwig
The lustrous texture and luminous colours of polished jade have been prized for thousands of years. Ancient cultures in North, Central and South America, New Zealand, Asia and Europe valued jade for its beauty, hardness and durability; properties that made it suitable for use in implements, jewellery, regalia and decorative items.
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16/03/2020
• Susan Hartwig
Chrysoprase is the green variant, and most valuable form, of chalcedony. Its name comes to us from the Greek language, with chrysos being the word for gold and prasinon for green.
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06/02/2020
• Susan Hartwig
The beauty of gemstones resides in the optical properties associated with light, be it light reflected within the body of the gem or from the gem’s surface.
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04/11/2019
• Susan Hartwig
In part two of the Garnet: Gem of Many Colours series, key members of the garnet family will be discussed, together with garnet history – in the jewellery sense – and garnet lore.
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03/10/2019
• Arabella Roden • Former editor
Coloured gemstones are firing up the jewellery industry. ARABELLA RODEN explores the rainbow of opportunities presented by this increasingly popular category.
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15/08/2019
• Susan Hartwig
Coral has a long history of use in jewellery. Many cultures across the world have valued coral for adornment, and also for its reputed mystical features. As well as being prized for jewellery, red coral was valued as a charm to ward off evil and to increase fertility. It was held to protect against snakebite and reduce fevers.
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27/07/2019
• Kathryn Wyatt
Have you heard the term ‘jet black’? It refers to jet, an organic gem material that originates from fossilised trees.
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11/02/2019
• Kathryn Wyatt
In our previous issue KATHRYN WYATT introduced the beryl gemstone family and paid attention to its most famous member: the emerald. Here, she examines other varieties, including the aquamarine, morganite, heliodor and goshenite.
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