Lavender Jadeite and Tsavorite Garnet Diamond Ring
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Lavender jadeite, Tsavorite garnet and diamond ring; centring a split claw-set oval cabochon lavender jadeite measuring approximately 22 mm by 18 mm by 10 mm and weighing approximately 36.70 carats, surmounting a row of channel-set square-cut tsavorite garnets, to shoulders accented with millegrain bead-set round brilliant-cut diamonds, the tsavorites and diamonds together weighing approximately 1.60 carats and 0.09 carats respectively, mounted in 18ct white gold, size N, total gross weight approximately 19 grams.
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- Tsavorite - Tsavorite is a green coloured garnet, first discovered by a British geologist, Dr Campbell R. Bridges in 1961 in Zimbabwe while working for the United Kingdom Atomic Energy Authority.
Unable to obtain a mining permit, he began prospecting in Tanzania and in 1967 made a second discovery of Tsavorite in northern Tanzania in 1967. Dr Bridges commenced mining the deposit, but the mine was nationalised by the government, so Dr Bridges moved to Kenya, where he made a third discovery of the mineral at the end of 1970.
Tiffany & Co. began promoting the then unnamed mineral in 1973 in association with Dr. Campbell, and it was agreed it should be named Tsavorite, after the Tsavo National Park in Kenya, near to where it was mined.
Dr Bridges died aged 71 in 2009 on his property in Tsavo National Park, Kenya, when he and his son were attacked by a mob in a dispute over mining rights. - Millegrain - A type of jewellery setting where the stone is held is held in position by small adjacent beads of metal. This method of securing the stone was popular in the 19th century.
- Garnet - A garnet is a mineral that is commonly used as a gemstone. It occurs in a wide range of colours, including red, pink, orange, green, yellow, and black. The most common and best known type of garnet is the red variety, which has a deep, rich colour and is often referred to as a "garnet red."
Garnets have a long history of use as gemstones, and they have been prized for their beauty and durability for thousands of years. They are often used in jewellery, such as rings, necklaces, and earrings, and they are also sometimes used as a decorative element in other items, such as vases and goblets.
Garnets are prized for their brilliance, durability, and resistance to scratching, making them a popular choice for use in jewellery. They are also valued for their hardness, which makes them well suited for use in abrasive applications, such as sandpaper and grinding wheels. - Cabochon Cut in Jewellery - A cabochon cut is a type of gemstone cutting where the stone is cut and polished in a convex shape with a flat bottom and a domed top, with no facets. This type of cut is typically used for opaque or translucent stones that have natural patterns or inclusions that are best displayed in this type of cut. Examples of stones that are often cut as cabochons include turquoise, opal, and moonstone.
- Claw Set Jewellery - The description "claw set" in jewellery refers to a setting where the gemstone is held in place by metal prongs that resemble claws. These prongs are bent over the edges of the gemstone to secure it in the setting. This type of setting is commonly used for diamonds and other precious stones.
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