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2. Diamonds as an investment - Wikipedia

   en.wikipedia.org/wiki/Diamonds_as_an_investment

   There are considerable price shifts near the edges of the size bands, so a 0.49 carats (98 mg) stone may list at $5,500 per carat = $2,695, while a 0.50 carats (100 mg) stone of similar quality lists at $7,500 per carat = $3,750. Stones near the top of a size band (or rarer fancy coloured varieties) tend to be uprated slightly.

3. The Star of Adam - Wikipedia

   en.wikipedia.org/wiki/The_Star_of_Adam

   The Star of Adam is an oval-shaped blue star sapphire, currently the largest star sapphire in the world. [1] [2] [3] It weighs 1,404.49 carats (280.898 g; 9.9084 oz). [4]Prior to its discovery in 2015, the Black Star of Queensland, weighing 733 carats (146.6 g), was the largest star sapphire gem in the world.

4. Carat (mass) - Wikipedia

   en.wikipedia.org/wiki/Carat_(mass)

   The carat (ct) is a unit of mass equal to 200 mg (0.00705 oz; 0.00643 ozt), which is used for measuring gemstones and pearls. The current definition, sometimes known as the metric carat , was adopted in 1907 at the Fourth General Conference on Weights and Measures , [ 1 ] [ 2 ] and soon afterwards in many countries around the world.

5. 18 Most Expensive Gemstones in the World - AOL

   www.aol.com/finance/18-most-expensive-gemstones...

   18. Platinum. Cost: $33.02 per gram Platinum is a beautiful precious metal that is in a similar category as gold and silver. All three of these metals are frequently traded in the global markets ...

6. Gemstone Meanings: Power and Significance of the 25 Most ...

   www.aol.com/gemstone-meanings-power-significance...

   “From monetary to spiritual worth, the value of gemstones is vast, varied, and lasting,” she says. Before buying any old gem, though, keep reading to uncover the 25 most popular gemstones ...

7. Diamond (gemstone) - Wikipedia

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

   Since the per carat price of diamond shifts around key milestones (such as 1.00 carat (200 mg)), many one-carat diamonds are the result of compromising cut for carat. Some jewelry experts advise consumers to buy a 0.99-carat (198 mg) diamond for its better price or buy a 1.10-carat (220 mg) diamond for its better cut, avoiding a 1.00-carat (200 ...

8. Hope Diamond - Wikipedia

   en.wikipedia.org/wiki/Hope_Diamond

   That amount, plus the reported sale to the King, would have totaled about 720,000 livres, half the price of Tavernier's initial estimate for the gem. [34] There has been controversy regarding the actual weight of the stone: Morel believed that the 112.1875-carat (22.43750 g; 0.791460 oz) [ 5 ] stated in Tavernier's invoice would be in old ...

9. How to Spot The Best Vintage Jewelry in Thrift Stores ... - AOL

   www.aol.com/spot-best-vintage-jewelry-thrift...

   For example, 10k, 14k, and 18k mean 10-carat, 14-carat, and 18-carat gold, and 925 indicates sterling silver. You may also see a maker’s mark, which provides information on who made the piece ...