
The 4Cs cheat sheet
PDF, 1 page
Cut, color, clarity, and carat on one page, with GIA grade scales and where to aim.

Three printable PDFs to take ring shopping. Download and print.

PDF, 1 page
Cut, color, clarity, and carat on one page, with GIA grade scales and where to aim.

PDF, 2 pages
US sizes 3 to 13 in millimeters, a cut-out sizer strip, and a calibration ruler. Print at 100%.

PDF, 2 pages
A checklist for the diamond, the setting, and the questions to ask before you pay.
Most buyers start with the 4Cs, then pick a setting. It takes about ten minutes to read both.