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2. Synthetic alexandrite - Wikipedia

   en.wikipedia.org/wiki/Synthetic_alexandrite

   Synthetic alexandrite is an artificially grown crystalline variety of chrysoberyl, composed of beryllium aluminum oxide (BeAl 2 O 4). The name is also often used erroneously to describe synthetically-grown corundum that simulates the appearance of alexandrite , but with a different mineral composition.

3. How Much Is a Diamond Worth? How To Find the Value of Your ...

   www.aol.com/finance/much-diamond-worth-value...

   To gauge the degree of clarity in a diamond, it’s important to work with a jeweler that you know and trust. The highest clarity grade is FL, meaning flawless. The scale then runs to: IF. VVS. VS ...

4. Chrysoberyl - Wikipedia

   en.wikipedia.org/wiki/Chrysoberyl

   Alexandrite in sizes over three carats are very rare. Today, several labs can produce synthetic lab-grown stones with the same chemical and physical properties as natural alexandrite. Several methods can produce flux-grown alexandrite, Czochralski (or pulled) alexandrite, and hydrothermally-produced alexandrite.

5. Diamond (gemstone) - Wikipedia

   en.wikipedia.org/wiki/Diamond_(gemstone)

   Most gem diamonds are traded on the wholesale market based on single values for each of the four Cs; for example knowing that a diamond is rated as 1.5 carats (300 mg), VS2 clarity, F color, excellent cut round brilliant, is enough to reasonably establish an expected price range.

6. Diamond prices are down as people spend more on travel ... - AOL

   www.aol.com/diamond-prices-down-people-spend...

   Even though rough diamond prices are falling, buying a one-carat round diamond at the store is on average 3% more expensive now than it was in January 2020, he said.

7. List of gemstones by species - Wikipedia

   en.wikipedia.org/wiki/List_of_gemstones_by_species

   Gadolinite; Gahnite; Gahnospinel; Garnet group: Pyralspite. Almandine; Pyrope; Spessartine; Ugrandite. Andradite. Demantoid; Melanite; Topazolite; Grossular ...