Frequently Asked Questions

Will my new Laboratory-Grown Diamond Report indicate the production method — CVD or HPHT?

Three of the four GIA Laboratory-Grown Diamond Reports include a comment that specifies the growth method. Each GIA Laboratory-Grown Diamond Report features a QR code that leads to an educational web page about laboratory-grown diamond growth methods and how GIA differentiates laboratory-grown diamonds from natural ones. The reports that feature growth method are LGDR, LGDR-Colored Diamond and LGDR-Colored Diamond Report Color Identification.