Size Mounted Diamonds

How to measure the size of a mounted diamond in rings and jewelry?

You will find out here.  Diamond sizes for loose diamonds

When a diamond is set in a ring or other jewelry you can estimate the diameter between the prongs on opposite sides of a stone with a professional measuring tool, gauge estimator or a brass calipers you will find the size / dimensions of set / mounted diamonds, the inside and outside diameter, depth + thickness.


Brass callipers instrument to measure the size of set diamonds. You can buy it at about +- US $7 at or you have it already in your toolbox


Leveridge, tool to measure the size of set diamonds