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2. Gemological Science International - Wikipedia

   en.wikipedia.org/wiki/Gemological_Science...

   GSI Gemological Laboratory performs a number of services including: loose and mounted diamonds grading; origin testing of loose and mounted diamonds and gemstones; cut grade analysis; light analysis reports; gemstone identification; sorting and screening of melee; treatment identification; laser inscription on diamonds and gemstones; metal engraving; metal inspection; and 360-degree virtual ...

3. Worthy.com - Wikipedia

   en.wikipedia.org/wiki/Worthy.com

   Worthy.com offers an online auction platform for selling pre-owned diamond jewelry, loose diamonds, and luxury watches. The company first identifies the market value of the item through an automatic pricing engine and then agrees on a reserve price with the sellers.

4. International Gemological Institute - Wikipedia

   en.wikipedia.org/wiki/International_Gemological...

   IGI provides independent grading reports, colored stone reports, identification and appraisal reports, diamond authentication and attestations of origin, and laser inscription services. They also offers diamond and colored stone courses through IGI's Schools of Gemology. The IGI school was the first to offer the practical Rough Diamond course. [4]

5. The 38 Best Affordable Jewelry Brands of 2024, Vetted and ...

   www.aol.com/lifestyle/37-best-affordable-jewelry...

   Electric Picks. In 2011, a pair of best friends founded this company with the concept of jewelry as a holder of an individual’s story. In making their designs, MJ and Chantel searched for ...

6. Diamond industry ‘in trouble’ as lab-grown gemstones tank ...

   www.aol.com/news/diamond-industry-trouble-lab...

   Lab-grown diamond sales surged from just 2% of the global diamond jewelry market in 2017 to 18.4% in 2023, according to data provided by Zimnisky. Additionally, the case for buying diamonds as an ...

7. Gemological Institute of America - Wikipedia

   en.wikipedia.org/wiki/Gemological_Institute_of...

   Diamond reports from GIA (as well as other, for-profit sources) are now demanded by most consumers purchasing diamonds over a certain size, typically for over 0.5 carat (100 mg), and almost always for over 1.0 carat (200 mg), and are considered an important tool in guaranteeing that a diamond is accurately represented to a potential buyer.