Colored Gem Stone Jewelry

Breathtaking color photographs, especially commissioned, capture the glistening beauty of gemstones from around the world-stones used for jewelry and magical rites as far back as 20,000 years ago. This feast for the eyes shows uncut stones and gems in their natural state, details how they are formed and mined, and also includes such exquisite jewel-adorned creations as the Black Prince's ruby set in the British Imperial State Crown; a Mayan jadeite mask, and the Koh-i-Noor diamond. For a full understanding of their fascination, look beyond their visible magnificence to the gems' structure and physical attributes. Besides the most popular gemstones, there are fascinating descriptions of common imitations and synthetics, and advice on distinguishing the real from the fake. "Note: This book is published in cooperation with the prestigious Natural History Museum in London.

For more than 200 years, buyers and sellers have sought advice from Christie's specialists. For the first time, Christie's shares this knowledge in an easy-to-use guide to jewellery with stunning color photographs. Christie's Guide to Jewellery provides essential facts and advice on how to appreciate and understand jewels. What should you look for in a gem? Which artificial enhancements should you be aware of when choosing a stone? Why is spinel one of the most underrated gems today? Offering everything from a description of the four "C" categories to an explanation of the origin of the word "carat, " Christie's Guide to Jewellery is a must-have book for both serious and amateur collectors.

Pleochroism - Pleochroism is an optical phenomenon where due to double refraction of light by a colored gem or crystal, the light is divided into two paths which are polarized at a 90Â° angle to each other. As the divided light follows different paths within the stone and are traveling at different speeds, they may have the result of differential selective absorption, thus when they leave the crystal they have different colors, making the stone seem to be of different colors.

Ornamental stone - An ornamental stone is a stone used as a decoration. They differ from gemstones in that they are not only used for jewelry.

Artificial gem - Artificial gems are not imitations of real gems, but the actual formation by artificial means of the real precious stone, so that the product is identical, chemically, physically and optically, with the one found in nature. For instance, in chemical composition the lustrous diamond is nothing but crystallized carbon.

Gemma Augustea - The Gemma Augustea (or Gem of Augustus) is a low-relief cameo gem cut from a double-layered Arabian onyx stone. It is commonly agreed that the gem cutter who created the Gemma Augustea was either Dioscurides or one of his disciples, around A.

coloredgemstonejewelry

Natural Gem Stone Silver Jewelry - Natural Gem Stone Silver Jewelry Silver Amethyst Bracelet and Necklace (Peru) Cheerful natural gem stone silver jewelry and bright, this charming bracelet natural gem stone silver jewelry and necklace features a central amethyst gem enhanced with amethyst beads natural gem stone silver jewelry and Peruvian silver alpaca beads of varying shapes natural gem stone silver jewelry and sizes. Purple has long been considered a royal color, so it is not surprising that amethyst has been so much in demand during history. ...

Natural Gem Stone Jewelry - Natural Gem Stone Jewelry Technibond; Diamond-Accented Triangular Turquoise Ring Do you make it a point to stand out in a crowd? Try a new spin on a familiar stone with this diamond-accented, genuine turquoise Technibond ring. Bezel-set in the center of this bold ring is a triangular, stabilized turquoise (approx. 15mm). Unlike traditional cabochons, this gem has three "facets" that form a pyramid-like point on top. Round diamond accents glint from rhodium-plated beading, which elegantly frames ...

Natural Gem Stone Silver Jewelry - Natural Gem Stone Silver Jewelry Gemstone and Sterling Silver Dome Ring Make your presence known wearing this unapologetically stunning gemstone natural gem stone silver jewelry and sterling silver dome ring. Choose tiger's eye, lapis lazuli or stabilized turquoise. Two trapezoid-shaped gemstones (approx. 9x13mm) flank a rectangle shaped gemstone (approx. 14x12 to 15x12mm depending on your choice) to form the ring's full-bodied dome. Bands of polished, etched silver frame each segment, wrapping the gems in a textured gleam. ...

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