Aquamarine and Diamond White Gold Ring
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.
- 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. - Rose Cut - A flat based cut for a preious stone, leaving the surface covered with triangular facets, usually 24 in total.
It was introduced in the 15th century and popular during the 16th and 17th centuries.
The rose cut was the most popular form of diamond cut until the discovery of the brilliant cut at the end of the 17th century, after which its use declined.
This item has been included into following indexes:
Visually similar items
Tourmaline and diamond ring, of cluster design centring a cushion-shaped green tourmaline weighing 4.51 carats within a brilliant-cut diamond surround above similarly set shoulders, the small diamonds together weighing approximately 0.87 carats, mounted in
A sapphire and diamond ring, featuring an oval faceted sapphire of 3.05cts, flanked by two faceted oval cut diamonds totalling 0.95cts, in 18ct white gold, ring size N.
An emerald and diamond cluster ring, the oval cut emerald of 2.55cts, surrounded by round brilliant and baguette cut diamonds totalling 1.24cts, mounted in 18ct gold, ring size N
A Japanese cloisonne vase in the manner of Hayashi Kodenji, Meiji period, ovoid hexagonal shape with two handles issuing from the shoulder. With two turquoise ground panels decorated with garden scenes, one with a bridge the other a zig-zag fence. Impresse