Precious Stones Guide Vol 7
How Stones Are Distinguished From One Another
An Explanation of Refraction
An Explanation of Double-Refraction
Table of Refraction in Gems
Differences in Gem Refraction ...
Streeter: Precious Stones and Gems
Introduction & Preface
Sec. I, Ch. 1: Precious Stone or Gem Defined
Sec. I, Ch. 2: Where Precious Stones are Found
Sec. I, Ch. 3: Uses in Bygone Times
Sec. I, Ch.
Featured Precious Stones, Birthstone, Gemstones Jewelry Listing
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1. A Kaleidoscope of Gems
Quality, natural, unique gemstones from around the world.
Semi Precious Stones Origins
Agate
No gemstone is more creatively striped by Nature than agate, chalcedony quartz that forms in concentric layers in a wide variety of colours and textures.
Learn All About Sapphires, Emeralds, Rubies and Semi-Precious Stones
Discover interesting facts about your favorite gemstones, and learn all about gemstone cuts, clarity, color and more.
Cocktail Ring: A large oversized ring set with precious or semiprecious stones popular during the 1940s and 1950s.
Coiffe: A net made of gold or silver threads, decorated with gems or pearls worn on the head.
Glossary of Gemstones, Precious and Semi-Precious Stones
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
~ A ~ ...
A gem is a gemstone that has been cut and polished. Diamond, corundum (ruby and sapphire), beryl (emerald and aquamarine), opal and topaz are generally classed as precious stones. All other gemstones are usually classed as semi-precious.
Precious stones - Rare and costly gems such as diamonds, emeralds, rubies, and sapphires
Princess cut - Similar to a brilliant square-cut gemstone
Pyrope garnet - A deep red mineral, similar in appearance to ruby ...
Precious Stones Rare and costly gems such as diamonds, emeralds, rubies, and sapphires.
Retail You pay a merchant's full retail price for beads and supplies. ...
Precious Stones:
An obsolete term which generally is used to refer to diamond, emerald, sapphire, or ruby.
Prong: ...
Semiprecious Stones - Natural stones that are not as rare, and thus, have a lesser value, than precious stones. Includes amethyst, aventurine, carnelian, garnet, opal, rose quartz, and others. Primarily used in fashion jewelry.
...
Semi-precious stones: A stone that is less rare and less expensive than precious stones, but is still valued for its beauty. Examples are peridot and amethyst.
SEMI-PRECIOUS STONES
Also known as Gemstones, these are stones produced from organic sources such as rocks, stones, plants (amber) and animals (pearls).
Semi Precious Stones - Gemstones prized for their beauty which are not one of the four stones considered precious - Diamond, Emerald, Ruby or Sapphire.
Svign - a set worn on the ornaments. It has gemstones and is in the shape of a bowknot.
Precious Stones - Entrance to the world of precious stones
Birthstones - Background and history of birthstones and calendars
Collector’s Corner - Special section of Palagems.com just for gem collectors ...
Precious stones are minerals, rocks or petrified materials which when cut and polished can be used in jewelry. Diamond one of the most important precious stones is the hardest natural material on earth.
Precious stones have long been associated with symbolism, superstition, mysticism and medicine.
Precious Stones -The Big Five
Jewelry of Semi-Precious Stones: Stylish Things of Beauty
The Lure Of Turquoise ...
Precious stones including sapphires, rubies and emeralds were used only for decoration, and when used they were en cabochon (round cut). Diamonds were typically rose-cut.
Precious stones are found without doubt at several places in the Kingdom of Siam, as, when travelling, I often came across them in the beds of streams and amongst the gravels of rivers, but nowhere are there so many as in the province of Chanthaburi.
Precious Stones: One of three categories of natural gemstones. The most valuable, as distinguished from semi-precious and decorative. These are: diamonds, rubies, emeralds, sapphires and pearls.
Precious stones typically embody the focal points of a piece of jewelry.
- Precious stones can easily be set in 14k gold. 22k and 24k gold is usually not recommended for stone settings as there is a high risk of loosening, attributed to the inherent softness of the gold.
Semi-Precious Stones
Gemstones those are valued for their beauty and not covered under any one of the four 'Precious Stones', Diamond, Emerald, Ruby or Sapphire, are known as Semi-Precious Stones.
Semi-precious Stones:
An obsolete term used to describe gemstones which are not diamond, emerald, sapphire, or ruby. This term is often misleading as many "semi-precious" gemstones are extremely valuable, and rarer than precious stones.
Shank: ...
Gems and Precious Stones of North America
This book is an overview of the important gem and mineral occurrences known prior to 1892. Excellent descriptions of many now-classic finds are described, including Mt.
Corundum
Precious stones, most common used are blue Sapphire and red Ruby. Consist of Aluminum oxide. Avaialble in many different colors.
Hardness : 9 Refractive Index : 1.762- 1.770 Density : 3.97-4.03 ...
THE ISRAEL PRECIOUS STONES AND DIAMONDS EXCHANGE Ltd.
THE LONDON DIAMOND BOURSE AND CLUB
THE NEW ISRAEL CLUB FOR COMMERCE IN DIAMONDS Ltd.
weight for precious stones. Karat is used to indicate degrees of quality in gold.
CARBON. A tetrad (having four sides), non-metallic mineral element occurring in two crystalline forms, diamond and graphite, and one amorphous form, coal.
Rubies are precious stones and a member of the corundum family. Rubies range in color from the classic deep red to pink to purple to brown. Rubies are extremely hard; only diamonds are harder.
Opals are semi-precious stones that are luminous and iridescent, frequently with inclusions of many colors ("fire"). Opal is a mineral composed of noncrystalline (amorphous) silica (and some water) and is a species of quartz.
Max Bauer, Precious Stones, trans. L.J. Spencer (1904; reprint
ed., New York: Dover Editions,1968) pp. 1-3.
14. G-F Herbert Smith, Gemstones (London: Methuen & Company, 1940), pp. xi-xii. This book was originally published in 1912.
15. Edwin W.
Mosaic of semi-precious stones set into a floral pattern of black marble or onyx, also known as a hardstone mosaic
Pinchbeck
A gold simulant, invented circa 1720 by Christopher Pinchbeck, which is comprised of a mixture of copper and zinc ...
A family of semiprecious stones that are found in various opaque colors and are relatively hard. Jasper can be solid in color or spotted and banded. Red jasper and picture jasper seem to have a great popularity in fashion jewelry.
Jet ...
Precious and semiprecious stones that date back to the stone ages are found in India. And metal beads were used to make jewelry throughout the world. So were materials like ceramics, pottery and glass.
Channel- The precious stones are secured between two bands of precious metal, thus allowing them to be set close together. The result is a line of tanzanites with no metal showing in between.
Max Bauer, 1904, Precious Stones
Figure 2
Afghan miners drilling the limestone for rubies at Jagdalek , Afghanistan .
(Photo: Gary Bowersox) ...
Compared with other precious stones the emerald in its occurrence in nature is unique, for it is found in the rock in which it was formed.
The look of the 2 carat emerald diamond cut is subtle.3 carat & 5 carat emeralds have also brilliant clarity.
Jewelry that mimics precious stones and metals is important to the story, yet the beginnings of modern costume jewelry, jewelry that is intimately connected to fashion, is found in early twentieth century Paris.
Unlike most gemstones, flaws (called inclusions by gemologists )are quite common in emeralds, so they lower the value much less than with other precious stones such a diamonds. The most highly prized emeralds are mined in Columbia.
But flaws (called inclusions by gemologists )are quite common in emeralds, so they lower the value much less than with other precious stones such a diamonds. The most highly prized emeralds are mined in Columbia.
relief, usually into a hard stone or shell Cannetille A type of gold or silver filigree of fine twisted wires forming a coiled spiral, used in early nineteenth century jewelry (Georgian period) Carat Unit of weight used for precious stones ...
A unit of weight for precious stones. One carat equals 200 milligrams. There are 5000 carats in a kilogram.
Chalcedony
A class of microcrystalline quartz that includes agate, jaspers, tiger eye, bloodstone, sardonyx, chrysoprase and others.
Precious Stones That Heal. Allied Publishers Pvt., Ltd., 13/14 Asaf Ali Road, New Delhi 110002, India. 1980. Raj Roop Tank. Indian Gemology. Dulichand Kirtichand Tank, Johari Bazaar, Jaipur 302003, India. 1971. Dr. G. S. Kapur.
Simon & Schuster's Guide to Gems and Precious Stones says, "... it has been imitated by a ferromagnetic, sintered product, molded to look like engraved stones.
Though Sapphire is a precious gemstone (as apposed to the cheaper, semi-precious stones), it is very reasonably priced. Across the industry, it is possible to get beautiful, high quality sapphires for a fraction of the price of rubies and emeralds.
^ Several Books at the "Pink Topaz" section on Farlang: Fernie: Precious Stones for Curative Wear, London, 1907; Oliver Farrington: Gems and Gem Minerals, Chicago, 1903. Wodiska, A Book of Precious Stones, New York, 1910 (see external links) ...
Jewelry Objects designed for the adornment of the body, such as bracelets, necklaces or rings, made with metals and often set with precious or semiprecious stones.
For the charm-struck, ancient legends offer two precious stones which may be worn to guard you from evil and improve your fortune.
Pure gold is not suitable for use in jewelry, it is simply too soft to safely hold your precious stones. The carat rating of gold refers to its purity. The higher the carat rating the more pure the gold is.
It originally was for emeralds, from the ancient Greek word for "green", and other precious stones. However, as diamond jewelry became more romantic, jewelers began to cut their diamonds in the style of the emerald cut.
Rubies are best known for their fiery red color and are recognized one of the four precious stones, which also include sapphires, emeralds, and diamonds. as with all precious stones at SuperJeweler.com, we carry a beautiful assortment of designs.
you can buy several inexpensive ones to build up your collection quickly and if you are financially well build and desire to become a proud owner of at least one expensive designer watch then you go for those watches studded with precious stones that ...
A measure of the weight of precious stones. 1 carat = 0.2053 gm
A measure of the proportion of gold in a gold alloy, on the basis that ...
Unlike most gemstones, inclusions, (called "jardin," the French word for garden), are quite common in emeralds, so they lower the value much less than with other precious stones such a diamonds.
In the fascinating world of precious stones, emeralds glow in the fieriest green imaginable. Aquamarines sparkle in a whole range of blues - from the light blue of the sky to the deep blue of the sea.
They commonly worked in gold and silver and inlaid these metals with semiprecious stones such as carnelian, jasper, amethyst, turquoise, and lapis lazuli and with enamel and glass.
We have included important information about the various precious stones and precious metals out of which our jewelry items are made. Zoara welcomes you to take some time and get acquainted with the ins and outs of our jewelry learning center topics.
Though often categorized with semi-precious stones, amber is not a stone. Sometimes it is referred to as an organic gemstone because it is actually fossilized resin from trees.
 See also: Precious, Stone, Precious stone, Jewel, Color
  
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