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2. Cubic zirconia - Wikipedia

   en.wikipedia.org/wiki/Cubic_zirconia

   Cubic zirconia (abbreviated CZ) is the cubic crystalline form of zirconium dioxide (ZrO 2). The synthesized material is hard and usually colorless, but may be made in a variety of different colors. The synthesized material is hard and usually colorless, but may be made in a variety of different colors.

3. Diamond simulant - Wikipedia

   en.wikipedia.org/wiki/Diamond_simulant

   CZ is made in a number of different colors meant to imitate fancy diamonds (e.g., yellow to golden brown, orange, red to pink, green, and opaque black), but most of these do not approximate the real thing. Cubic zirconia can be coated with diamond-like carbon to improve its durability, but will still be detected as CZ by a thermal probe.

4. Zircon - Wikipedia

   en.wikipedia.org/wiki/Zircon

   Its Mohs hardness is between that of quartz and topaz, at 7.5 on the 10 point scale, though below that of the similar manmade stone cubic zirconia (8-8.5). Zircons may sometimes lose their inherent color after long exposure to bright sunlight, which is unusual in a gemstone.

5. Zirconium dioxide - Wikipedia

   en.wikipedia.org/wiki/Zirconium_dioxide

   Visually discerning a good quality cubic zirconia gem from a diamond is difficult, and most jewellers will have a thermal conductivity tester to identify cubic zirconia by its low thermal conductivity (diamond is a very good thermal conductor). This state of zirconia is commonly called cubic zirconia, CZ, or zircon by jewellers, but the last ...

6. 11 Christmas Gifts To Buy at Nordstrom Rack If You Want To ...

   www.aol.com/11-christmas-gifts-buy-nordstrom...

   Each heart charm is encrusted in pavé cubic zirconia stones to add a touch of sparkle to any outfit. Available in gold and rhodium shades, these earrings are now 52% off their comparable value ...

7. Zirconium - Wikipedia

   en.wikipedia.org/wiki/Zirconium

   Zircon (ZrSiO 4) and cubic zirconia (ZrO 2) are cut into gemstones for use in jewelry. Zirconium dioxide is a component in some abrasives , such as grinding wheels and sandpaper . [ 49 ] Zircon is also used in dating of rocks from about the time of the Earth's formation through the measurement of its inherent radioisotopes , most often uranium ...