Gemstone Knowledge
SOOKJAI KNOWLEDGE
Gemstone Knowledge
A considered guide to gemstones — from colour and cut to origin, treatment and the stories behind each stone.
Colour · Other Gemstones
Fire Opal: The Warm and Vivid Side of Opal
Fire opal reveals a warm side of the opal family, where yellow, orange and red body colours can glow with or without the shifting play-of-colour usually associated with opal.
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Colour · Other Gemstones
Opal: A Gemstone Made of Colour and Light
Opal creates colour through an extraordinary relationship between microscopic silica structure, light and movement, producing a gemstone that can look different from one angle to the next.
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Colour · Other Gemstones
Topaz: Exploring Blue, Golden and Imperial Colours
Topaz reaches far beyond familiar blue, moving through golden, orange, pink and Imperial colours whose different histories reveal the remarkable breadth of a single mineral.
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Colour · Other Gemstones
Kunzite: Soft Pink, Lilac and Violet in One Gemstone
Kunzite moves through soft pink, lilac and violet, with pleochroism, transparency and crystal direction giving its gentle colour an unusually fluid character.
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Colour · Other Gemstones
Aquamarine: The Quiet Beauty of Blue
Aquamarine reveals a quieter expression of blue, where colour, transparency, depth and light work together to create a gemstone with an open and distinctive character.
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Colour · Garnet
Colour-Change Garnet: One Gemstone, Two Different Moods
Colour-change garnet reveals how gemstone chemistry and illumination work together, allowing one stone to show distinctly different colours—and different moods—under different light sources.
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Colour · Garnet
Hessonite Garnet: Warm Honey, Cinnamon and Golden Tones
Hessonite is the warm side of grossular garnet, moving through honey, cinnamon, golden orange and reddish-brown tones with a distinctive internal character of its own.
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Colour · Garnet
Mali Garnet: Where Green, Yellow and Gold Come Together
Mali garnet occupies a natural meeting place between grossular and andradite, with colours that move through green, yellow, olive and gold rather than belonging to a single shade.
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Colour · Garnet
Rhodolite Garnet: Where Red, Pink and Purple Meet
Rhodolite garnet lives in the meeting place between red, pink and purple, with a colour identity that mirrors the continuous pyrope–almandine chemistry behind the stone.
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Colour · Garnet
Spessartine Garnet: From Mandarin Orange to Warm Red-Orange
Spessartine garnet spans a warm world of colour, from golden and vivid mandarin-like orange to deeper red-orange, revealing far more than a single celebrated trade colour.
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Colour · Garnet
Demantoid Garnet: Green Garnet with Exceptional Fire
Demantoid is the green variety of andradite garnet, distinguished by exceptional dispersion that brings spectral fire into conversation with its green body colour.
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Colour · Garnet
Tsavorite Garnet: The Vivid Green Side of Garnet
Tsavorite is the vivid green variety of grossular garnet, shaped by unusual East African geology and a gemstone identity far younger than the rocks that created it.
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