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2. 'Antiques Roadshow': $30 Ring Turns Out To Be Worth Fortune - AOL

   www.aol.com/entertainment/2014-02-18-antiques...

   What you have is a ring that looks like it's eight to 10 carats from the top, and ... it's a diamond.' The appraiser said the ring dated back to the 1920s or 1930s ... and would be conservatively ...

3. Diamond simulant - Wikipedia

   en.wikipedia.org/wiki/Diamond_simulant

   A diamond simulant, diamond imitation or imitation diamond is an object or material with gemological characteristics similar to those of a diamond. Simulants are distinct from synthetic diamonds , which are actual diamonds exhibiting the same material properties as natural diamonds.

4. Thermal conductivity measurement - Wikipedia

   en.wikipedia.org/wiki/Thermal_conductivity...

   A thermal conductance tester, one of the instruments of gemology, determines if gems are genuine diamonds using diamond's uniquely high thermal conductivity. For an example, see Measuring Instrument of Heat Conductivity of ITP-MG4 "Zond" (Russia). [25]

5. Diamond (gemstone) - Wikipedia

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

   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 mg) diamond which is more likely to be a poorly cut stone.

6. 11 of the Best Lab-Created Diamond Earrings That Seriously ...

   www.aol.com/entertainment/11-best-lab-created...

   11 of the Best Lab-Created Diamond Earrings 1. Brilliant Earth Certified Lab-Created Diamond Stud Earrings ... The Shop With Us team may receive products free of charge from manufacturers to test ...

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