Whiteflash
4.6 / 5Online · established 2000
Whiteflash is an online loose-diamond seller running since 2000, specialising in GIA-certified stones that also carry AGS ideal cut reports. Its A CUT ABOVE line is a super-ideal round cut with hearts-and-arrows precision, and every stone comes with HD video so you can judge it before buying. Free worldwide shipping means a Zurich buyer can pick the diamond first and ship it in for setting.