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Just as the angle of the sides of a cabochon creates the pressure to hold the stone in place, so there is an overlying principle in setting faceted stones. If one looks at a side view of a round diamond, for example, one will see that there is an outer edge, called the girdle, and the top angles up from there, and the bottom angles down from ...
Bordering the edges of the "mitre" are a number of large white pearls. The crown is also decorated with one of the seven historic stones of the Russian Diamond Collection: a large precious red spinel weighing 398.72 carats (79.744 g), known as the Menshikov Ruby, which was bought in China in 1702 by the Nerchinsk merchant Yan Istopnikov. It is ...
It is translucent to transparent, medium hard (5.5 mohs), appears yellow to dark brown, reddish or greenish brown, with an adamantine luster. Stibiotantalite is found in veins and walls associated with tin mines. It is a fairly rare to rare mineral. Due to its relative softness, it is more likely to be found in mineral collections than in ...
This gold-plated pendant (it comes in white, yellow or rose gold) holds an oval-cut simulated diamond crystal surrounded by sparkly chips on an 18-inch hypoallergenic chain. The made-in-the-USA ...
This fire—flashes of prismatic colors seen in transparent stones—is perhaps diamond's most important optical property from a jewelry perspective. The prominence or amount of fire seen in a stone is heavily influenced by the choice of diamond cut and its associated proportions (particularly crown height), although the body color of fancy (i ...
That single piece of body jewelry is worth a jaw-dropping $10,750 — the exact item is the Jacquie Aiche 50 Diamond Bra with Marquise Center (y'know, if you have the coins to drop almost $11k on ...
Peridot (/ ˈ p ɛ r ɪ ˌ d ɒ t,-ˌ d oʊ / PERR-ih-dot, -doh), sometimes called chrysolite, is a yellow-green transparent variety of olivine. Peridot is one of the few gemstones that occur in only one color. Peridot can be found in mafic and ultramafic rocks occurring in lava and peridotite xenoliths of the mantle.