skip to main content
English
簡体中文
日本語
Please ensure Javascript is enabled for purposes of website accessibility
WHAT ARE THE 4Cs?
4C
s
OF DIAMOND QUALITY
DIAMOND COLOR
WHAT IS DIAMOND CLARITY?
DIAMOND CUT
DIAMOND CARAT WEIGHT
DIAMOND BUYING GUIDE
HOW TO BUY A DIAMOND
SELECTING AN ENGAGEMENT RING
CARING FOR YOUR DIAMOND
INSURANCE AND APPRAISAL
WHERE DIAMONDS COME FROM
DIAMOND FLUORESCENCE
WHAT ARE DIAMOND TREATMENTS?
DIAMOND SIMULANTS
WHAT ARE LABORATORY-GROWN DIAMONDS?
GIA GRADING & REPORTS
GIA GRADING
WHY ASK FOR A GRADING REPORT?
HOW TO GET A GIA DIAMOND GRADING REPORT
GRADING THE 4C
s
DIAMOND GRADING REPORTS
DIAMOND ORIGIN REPORT
COLORED DIAMOND REPORTS
LGDR by GIA — Laboratory-Grown Diamond Reports
COLORED GEMSTONE AND PEARL REPORTS
ABOUT GIA
BLOG
An illustration of an oval diamond showing the bow-tie effect
May 17, 2017
