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2. Cubic zirconia - Wikipedia

   en.wikipedia.org/wiki/Cubic_zirconia

   Cut: Cubic zirconia gemstones can be cut differently than diamonds: The facet edges can be rounded or "smooth". Color: only the rarest of diamonds are truly colorless, most having a tinge of yellow or brown to some extent. A cubic zirconia is often entirely colorless: equivalent to a perfect "D" on diamond's color grading scale. That said ...

3. Zirconium - Wikipedia

   en.wikipedia.org/wiki/Zirconium

   The most common oxide is zirconium dioxide, ZrO 2, also known as zirconia. This clear to white-coloured solid has exceptional fracture toughness (for a ceramic) and chemical resistance, especially in its cubic form. [37] These properties make zirconia useful as a thermal barrier coating, [38] although it is also a common diamond substitute. [37]

4. Gemology - Wikipedia

   en.wikipedia.org/wiki/Gemology

   Any single test is nearly always only indicative. For example: The specific gravity of ruby is 4.00, glass is 3.15–4.20, and cubic zirconia is 5.6–5.9 . So one can easily tell the difference between cubic zirconia and the other two; however, there is overlap between ruby and glass. As with all naturally occurring materials, no two gems are ...

5. Scheelite - Wikipedia

   en.wikipedia.org/wiki/Scheelite

   Scheelite usually occurs in tin-bearing veins; and is sometimes found in association with gold. Fine crystals have been obtained from Caldbeck Fells in Cumbria, Zinnwald/Cínovec and Elbogen in Bohemia, Guttannen in Switzerland, the Giant Mountains in Silesia, Dragoon Mountains in Arizona and elsewhere.

6. Diamond simulant - Wikipedia

   en.wikipedia.org/wiki/Diamond_simulant

   Cubic zirconia can be coated with diamond-like carbon to improve its durability, but will still be detected as CZ by a thermal probe. CZ had virtually no competition until the 1998 introduction of moissanite (SiC; silicon carbide). Moissanite is superior to cubic zirconia in two ways: its hardness (8.5–9.25) and low SG (3.2).

7. Amazon’s Best Christmas Gifts of 2024: 39 You Can Buy for $30 ...

   www.aol.com/amazon-best-christmas-gifts-2024...

   Amazon Essentials Cubic Zirconia Tennis Bracelet. Price: $17.60. A tennis bracelet never goes out of style. This affordable version is available in both 14-karat gold-plated and sterling silver ...