GIA Diamond Grading Guide: How to Buy a Diamond

Tue, 22 Jan 2008 15:27:55 PST

An informational video about how the Gemological Institute of America grades diamonds and provides consumers with unbiased diamond grading reports ...

Topcon 3D-GPS+ Grade Reference

Thu, 29 Dec 2011 18:16:24 PST

For road building, site work, contour grading, or any other complex surface grading requirements, Topcon's 3D GPS+ will increase money to your ...

How to convert bulk .22 into expensive target grade ammo

Fri, 30 Apr 2010 08:43:24 PDT

A rim thickness gauge can determine which rounds are so far out of the average specs of that box/lot that it virtually eliminates flyers caused by ...

Grading Scale of a Asian

Sat, 06 Dec 2008 17:58:54 PST

this video is a video of tony when he gets good grades or bad grades. the grading scale for white people is totally different for asians.