Scintillating Swiss Blue Topaz Earring Gems, Blue topaz, Topaz gemstones, blue gemstones, Earring lot, 5.95 tcw
I've put this set together from some of the mixed lots I used to love to sift through and think up jewelry to make. You can take my idea of a double setting earrings set , ...do your own great thing with these lovely, radiant swiss blue topaz gemstones. The tcw is 5.95, each oval weighing 7.9 and 9.9, the octagons weigh .65 each. I have photographed these with a macro lens from many angles and although I found windows, I also found that the ovals and octagons as well have great light return when set! windows. Really a quality set for a great price!! I hope you get inspired here to create something terrific!
Size: 2 octagon 4 x 6 and 2 ovals 8x10 calibrated cuts
Shape: Oval and octagons
Colour: Fine Swiss-Blue
Specific Gravity: 3.4 - 3.5+
Refractive Index: 1.61 - 1.64
Chemical Composition: Al2SiO4(F,OH)3, Aluminum Silicate Fluoride Hydroxide
Crystal Structure: Orthorhombic
Some clear topaz crystals from Brazilian pegmatites can reach boulder size and weigh hundreds of pounds. Crystals of this size may be seen in museum collections. The Topaz of Aurangzeb, observed by Jean Baptiste Tavernier weighed 157.75 carats. The American Golden Topaz, a more recent gem, weighed a massive 22,892.5 carats.
Pure topaz is colorless and transparent but is usually tinted by impurities; typical topaz is wine red, yellow, pale gray, reddish-orange, or blue brown. It can also be made white, pale green, blue, gold, pink (rare), reddish-yellow or opaque to transparent/translucent.
Orange topaz, also known as precious topaz, is the traditional November birthstone, the symbol of friendship, and the state gemstone of the US state of Utah.
Imperial topaz is yellow, pink (rare, if natural) or pink-orange. Brazilian Imperial Topaz can often have a bright yellow to deep golden brown hue, sometimes even violet. Many brown or pale topazes are treated to make them bright yellow, gold, pink or violet colored. Some imperial topaz stones can fade on exposure to sunlight for an extended period of time.
Yellow topaz in stepped kite-shaped cut
Blue topaz is the state gemstone of the US state of Texas. Naturally occurring blue topaz is quite rare. Typically, colorless, gray or pale yellow and blue material is heat treated and irradiated to produce a more desired darker blue.
Mystic topaz is colorless topaz which has been artificially coated giving it the desired rainbow effect.
You might also like
More from this seller
Shipping & policies
- Money Order
- Other Method
Returns & exchanges
- Custom or personalized orders
- Perishable products (like food or flowers)
- Digital downloads
- Intimate items (for health/hygiene reasons)
- Items on sale