Set of 22 diamond-comparison stones Magnification_3X to 9X Refractive index chart (pdf download)

Refractive index chart (pdf download) - for 75 common gemstones

Troy ounces

basic - good - very good – EXCEPTIONAL

tests for 17 common groups of gemstones (about 40 varieties)

The photos of the '3' are from a metal ruler (mm) with the zoom set to lower magnifications

Set of 22 diamond-comparison stones Magnification_3X to 9X Refractive index chart (pdf download)Details Set of 22 actual stones, beautifully presented in a case with a clear lid, so that your customer can decide which size stone would best suite their ring budget. This is a good way of getting your customer excited about their purchase, answering their most basic question: what size do I get for my money and what does that size look like? We, in the trade, know how big a 1 4 carat or 1 2 carat diamond is, but most people have no idea, and taking