Diamond Circle Pendant by Roberto Coin
You must be a subscriber, and be logged in to view price and dealer details.
Subscribe Now to view actual auction price for this item
When you subscribe, you have the option of setting the currency in which to display prices to $Au, $US, $NZ or Stg.
- 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. - 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.
This item has been included into following indexes:
- Coin, Roberto (Italy) - jewellery 13
- lockets - diamond 3,475
- pendants and lockets, coin set - coin 165
-
pendants and lockets, diamond
- diamond 2,697
- diamond and ruby 229
- pendants and lockets, gold - gold with diamonds 3,395
Visually similar items
A pair of gold and diamond chandelier earrings, each designed as three graduated fluted bells fringed with round brilliant cut diamonds, surmounted by a fluted bombe panel with diamond detail, mounted in 18ct gold.
18ct gold, diamond and ruby brooch, Van Cleef & Arpels, designed as an ascending dragon, the eyes accented with circular-cut rubies, the nose and wings decorated with brilliant-cut diamonds to a textured body, length approximately 70 mm, signed Van Cleef E
Pair of 18ct bi-colour gold, emerald and diamond pendant earrings, each terminating on a swing drop cluster centring an octagonal step-cut emerald weighing 4.55 and 4.59 carats respectively, framed by brilliant-cut diamonds, the reverse decorated with a la
Platinum, emerald and diamond ring, of half hoop design, centring a row of three channel-set oval-shaped emeralds alternating between pairs of brilliant-cut diamonds, flanked by baguette diamonds, the emeralds and diamonds together stated to weigh 0.71 car