1 Only Professional course for Rough Diamonds in South Africa? Which course is best for diamonds in South Africa? Does […]
1 Only Professional course for Rough Diamonds in South Africa? Read Post »
The 4C’s of diamonds refer to the four characteristics that are considered the most important when determining a diamond’s quality
International Gemological Institute (IGI) has been sold in a deal worth more than $US596.6 million. The International Gemological Institute (IGI)
International Gemological Institute Read Post »