Laboratory-Grown Diamond Reports & Services
Laboratory-Grown Diamond Report. Full 4Cs assessment with a plotted clarity diagram, and an assessment of growth type and post-growth treatment. The laboratory-grown diamond’s girdle is laser inscribed with the term "Laboratory-Grown" and its GIA report number.
Laboratory-Grown Diamond Report (LGDR) by GIA
How Does GIA Identify Laboratory-Grown Diamonds? When a diamond is submitted to GIA, we examine the stone’s inclusions, graining, reactions to UV light and other characteristics to determine whether the stone is natural or laboratory-grown.
Does GIA grade laboratory-grown diamonds?
Beginning July 1, 2019, GIA Laboratory-Grown Diamond Reports and identification reports no longer use the term “synthetic.” The GIA Laboratory-Grown Diamond Report includes the standard GIA color, clarity and cut grading scales for reference purposes.
Laboratory-Grown Diamonds: An Update on Identification and ...
2018年8月6日 · Over the past two decades, GIA has documented a rapid evolution of laboratory-grown diamonds; this article provides a comprehensive overview of these developments and summarizes novel laboratory-grown diamonds that may become more common in the future.
Simulants, Moissanite and Lab-Grown Diamonds - GIA 4Cs
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 was grown through HPHT or CVD …
Laboratory-Grown Diamond Report (LGDR) by GIA
Using spectroscopy and other advanced testing methods, GIA scientists can determine how a diamond was grown—through the high-pressure, high-temperature (HPHT) method or the chemical vapor deposition (CVD) method. This information is then provided on our updated Laboratory-Grown Diamond Reports.
Types of GIA Reports
GIA Laboratory-Grown Diamond Report. Digital-only report for loose D-to-Z laboratory-grown diamonds over 0.15 carats. Includes full 4Cs assessment and plotted clarity diagram.