Our GIA Laboratory-Grown Diamond Report provides detailed color and clarity specifications as well as a plot of the stone’s clarity characteristics. We are able to scientifically determine whether a diamond …

Dec 13, 2016 · Lab-Grown Diamonds: How are synthetic diamonds made? While natural diamonds formed millions to billions of years ago beneath the earth’s surface, synthetic diamonds are grown in …

Laboratory-grown diamonds are manufactured using advanced technology. Differentiating them from natural diamonds requires specialized testing and analysis because they have essentially the same …

Mar 27, 2018 · In a study of more than 26,000 diamonds submitted for grading to GIA, researchers found that only approximately 25% to 35% of them exhibited some degree of diamond fluorescence …

Dec 20, 2016 · Both laboratory-grown gems (also called “synthetic” gems) and natural gems that look like a particular gem can be used to imitate that gem. Gemologists call these imitations “simulants.”

GIA tests every diamond to determine if it is natural. If a diamond is found to be laboratory-grown, GIA issues a Laboratory-Grown Diamond Quality Assessment, which looks distinctly different from the …

There are several ways that diamonds can be treated to enhance or remove their color and improve their clarity.

Jul 18, 2023 · Diamond fluorescence is a fascinating phenomenon where diamonds glow when exposed to long-wave UV rays. It can sometimes increase or decrease the value of a diamond.

Aug 8, 2023 · Learn the difference between a VVS diamond (Very Very Slightly included) and a VS diamond (Very Slightly included) to recognize quality and good value.

Mar 14, 2013 · The prospect of purchasing a diamond may seem daunting, but through GIA, an unbiased authority on diamonds, you have several handy resources to help you select the highest …