This revision of grading standards is another milestone following GIA's abandonment of the term 'Synthetic' and its move to describe lab-grown diamonds in relation to natural diamond standards.

HONG KONG SAR - Media OutReach Newswire - 10 June 2025 - The Gemological Institute of America (GIA), the world's foremost authority in gemology announced a redefinition in diamond grading on June 2, ...

This revision of grading standards is another milestone following GIA’s abandonment of the term “Synthetic” and its move to describe lab-grown diamonds in relation to natural diamond standards.

While it may look like a blazing red ruby, the 2.33-carat Winston Red Diamond is just that—a diamond. One of the rarest diamonds in the world, the Winston Red Diamond is on display at the Smithsonian ...

Teachers weigh multiple factors, including subjective perceptions, when selecting grades, beyond just assignments and test scores.

Diversified miner Rio Tinto has recovered a 158.2 ct yellow diamond at its Diavik mine, in Canada – one of only five yellow diamonds weighing more than 100 ct ever unearthed at the mine in its ...

The 158.20-carat rock is one of only five yellow diamonds weighing more than 100 carats ever found at Diavik in its 22-year history.

How Do Diamonds Get Their Fancy Colors? From brilliant blues to fiery reds, discover how nature crafts diamonds in every color, and why some shades are rarer than the rest ...

Gemstones, including rubies, emeralds, and sapphires, can be sold for cash, much the same as diamonds and other jewelry.

Congratulations are in order for Elton John, who celebrates his ninth Official Number 1 album with Diamonds this week.

Maintaining high customer satisfaction levels and trust in the diamond industry requires new ways of doing business. Industry leader GCAL uses AI to stay one step ahead.