"Cubism Radiant" Diamond and Black Sapphire Ring by Canturi

18ct white gold, diamond and black sapphire 'Cubism Radiant'…
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18ct white gold, diamond and black sapphire 'Cubism Radiant' ring, Canturi, 2012, claw-set to the top with a brilliant-cut diamond weighing 1.83 carats to a band end-set with an offset mosaic of baguette and carre cut diamonds together weighing 1.20 carats, the bridge highlighted on each side with a brilliant-cut black sapphire together weighing 0.04 carat, size J, signed Canturi. Accompanied by a facsimile Hrd certificate dated 6 March 2002, numbered 20023268102, stating that the 1.83 carat diamond is rare white (G) colour and SI2 clarity. Provenance: Canturi, Sydney, acquired on 21 December 2012, $39,200. Other Notes: property from Melissa Louise Caddick (Receivers Appointed), Sydney

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  • 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.

  • Carat - A carat (abbreviated "ct") is a unit of measurement used to describe the weight of a diamond or other gemstone, and separately is a unit of measurement used to describe the weight of precious metals such as gold,.

    For gemstones, one carat is equal to 0.2 grams or 200 milligrams. The weight of a diamond is one of the Four Cs (along with cut, colour, and clarity) that are used to determine a diamond's value.

    It is important to note that a diamond's weight does not necessarily correspond to its size. A diamond's cut, which affects how well it reflects light, can make a diamond of a lower weight appear larger than a diamond of a higher weight. Additionally, the carat is not the only factor to determine the value of a diamond, other factors such as clarity, colour and cut are important too.

    In the gold industry, the purity of gold is measured in carats (abbreviated "ct"), with 24 karats being pure gold and lower carat numbers indicating a lower purity level. So, for example, 18 carat gold is 18/24 or 75% pure gold, and 12 carat gold is 12/24 or 50% pure gold.

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