18ct bi-colour gold and diamond 'Regina' ring, Canturi, the…
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18ct bi-colour gold and diamond 'Regina' ring, Canturi, the brilliant-cut diamond weighing 1.50 carats is claw-set to band of geometric design partially set with brilliant-cut diamonds together weighing approximately 0.45 carat, size I/12;, signed Canturi. Accompanied by: a facsimile GIA report numbered 2186552172, dated 3 November 2014, stating that the 1.50 carat diamond is F colour, VS2 clarity, laser inscribed; a facsimile Canturi appraisal numbered MV3710448, dated 21 July 2015.

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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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