Diamond grading lab manual

In the process, you will study how to recognize the most common diamond features. Students must pass a two-stone practical exam to complete the class successfully. Once you have completed the class, you will keep a lab manual, a pointer probe, a gem cloth, a plotting pen set, a table gauge, a crown angle card and a color grading card. DIAMOND GRADING CHART CLARITY Internally Flawless Very Very Slightly Included Very Slightly Included Slightly Included Included I.F. VVS 1 VVS 2 VS 1 VS 2 SI 1 SI 2 I 1 I 2 I 3 CARAT COLOR D - F Colorless G - J Near Colorless K - M Slightly Tinted N - R Very Light S - Z Light CUT Total Depth Crown Table Width Angle Pavilion Angle Girdle.  · Each grading report will include an image indicating where inclusions are located which is very helpful if you are purchasing a diamond without seeing it in person. At the end of the day, all 4 categories work together to tell a Lab Created Diamond's story; no two diamonds will be exactly alike, despite sharing the same grades and measurements.

When writing the grades of a diamond using the AGS Scale, diamond Cut grade is first, then diamond Color, Clarity, then Carat Weight—in that order. If a diamond possessing the finest diamond Cut grade is also colorless, free of inclusions and blemishes, and weighs one carat, it would be written as: 0/0/0– carat. • The Diamond Grading lab class explores how to grade diamonds consistently and accurately using a modern gem microscope and a jeweller’s loupe. • Students study GIA’s International Diamond Grading System™, explore time-saving shortcuts to determine a variety of grading factors, and are introduced to methods for reading a GIA Diamond Grading Report. The Diamond and Diamond Grading eLearning course brings to life the skills needed to grade the color, clarity and cut of diamonds through video, graphics, images and text. The course also covers: The final exam is online, closed book and proctored; see the Education Catalog for details. Try a complementary lesson for this course.

The Diamond Certification Laboratory of Australia (DCLA); Australian Diamond Grading Laboratory (ADGL); Scientific Gem Testing Laboratories (Auscert). The Diamond Grading Lab Session is required for the GIA Graduate Gemologist diploma. Once you have completed the class, you will keep a lab manual. Individual Grading Laboratories Certificates. The Essential 7C's. There are many diamond grading laboratories around the world all of which produce their own.