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Date : 2002-11-22
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Rating : 5.0
Reviews : 26
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Opal Identification Value Paul B Downing ~ Downings Opal Identification Value provides a descriptive overview of opals though it is short on technical data or gemmological information The book emphasizes criteria for determining opal values and here it performs a great service because it lays out sensiblesounding and userfriendly guidelines
Opal Identification and Value Geology ~ Opal Identification and Value by Paul B Downing Only 4995 If you want to learn about opal this is the book Its our favorite book about opal It clearly describes the many different types of opal in language that is easy to understand Includes information about how opal is identified valued mined cut and used in jewelry
Opal Identification Value by Paul B Downing ~ Provides all the information necessary for complete analysis and evaluation of any opal from a true gem Properly identify opals from all over the world and what characteristics affect value Breathtaking color photos throughout
Opal Identification Value GIA Store ~ The world standard is back by popular demand This completely revised updated and expanded version of Dr Downings 1992 Opal Identification and Value is a must have for all appraisers opal buyers and opal lovers Learn to properly identify opals from all over the world
Customer reviews Opal Identification Value ~ Downings Opal Identification Value provides a descriptive overview of opals though it is short on technical data or gemmological information The book emphasizes criteria for determining opal values and here it performs a great service because it lays out sensiblesounding and userfriendly guidelines
Opal Identification ~ • White or Black Opal 210230 • Boulder Opal 260280 Note SG indicates the relation between the measured gemstone and an equal amount of water its numerical value is between 1 and 8 values under 2 are considered light those from 2 to 4 normal and over 4 heavy
Opal Gemstone Opal Stone – GIA ~ Opal Identification Value Paul B Downing Opals Fred Ward This Months Featured Gems Peridot Found in lava meteorites and deep in the earth’s mantle yellowgreen peridot is the extreme gem Fancy Color Diamond Dazzling brilliance Captivating color These are the planet’s most valued gems
How To Value Opal Brightness Color and Pattern Seda Gems ~ As the value of doublet opals is less than solid black opals ensure that you have bought this from a trusted jewellery seller Triplet Opal – this is a handmade stone where fine slices of precious opal are layered between a black backing and a layer of quartz or glass It is not difficult to identify triplet opals by viewing it from the side
Opal Buying Guide International Gem Society ~ Opal gemstones are evaluated a little differently than other gemstones The International Gem Society opal price guide features a grading system and terms unique to opalsA full description of these differences can be found in our Premium article on Appraising the benefit of those interested in opal buying here is a brief explanation of these terms
Pictures of Opal Black Fire Boulder Blue and Pink ~ Gemquality opal is one of the most spectacular gemstones A single stone can flash every color of the spectrum with an intensity and quality of color that can surpass the fire of diamond Opal is a wonderful stone for earrings pendants and brooches These items of jewelry normally do not
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