Stefano Canturi Black Sapphire Diamond Necklace
18ct white gold, black sapphire and diamond 'Stella' necklace, Stefano Canturi for Canturi, 2015, set to the front with an articulated line of 13 cushion-shaped claw-set black sapphires each framed by an open work offset mosaic halo of claw-set baguette and carre cut diamonds and connected by claw-set brilliant-cut diamonds, completed by a line of circular motifs pave set with brilliant-cut diamonds to a clasp accented by an oval pink tourmaline cabochon framed by a border of brilliant-cut diamonds and baguette black sapphires, the black sapphires, diamonds and pink tourmaline together weighing 152.37, 31.81 and 5.22 carats respectively, gross weight approximately 166 grams, inner circumference 20.87 in., adjustable, signed S Canturi and Canturi. Accompanied by: A GSL gemstone authentication report numbered AA45373, dated 21 February 2014, stating that the black sapphire set to the front of the necklace weighs 83.03 carats, is natural black sapphire and of Queensland, Australia origin. A Canturi presentation pouch, box and outer box. Provenance: Canturi, Sydney, acquired on 6 June 2015, $370,000. 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.
- Openwork in Jewellery - Openwork, also known as pierced work, is a decorative technique used in jewellery making that involves removing or cutting out sections of metal from a piece of jewellery to create a pattern or design. This technique can be used in a wide range of jewellery styles, including necklaces, bracelets, earrings, and rings.
Openwork jewellery can be made using a variety of different techniques, including hand carving, sawing, and laser cutting. The design can be simple or complex, and can feature a range of different shapes and motifs, from delicate floral patterns to bold geometric designs.
One of the advantages of openwork jewellery is that it can add visual interest and depth to a piece without adding a lot of weight or bulk. This can be particularly appealing in larger pieces, such as necklaces and bracelets, where heavy materials can be uncomfortable to wear. - Pave Setting - Pave setting is a style of setting stones in jewellery where the small stones are placed close together in holes drilled in the metal, the burr of the metal around the stone being pressed over the edges to hold the stone in position.
- 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.
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