Welcome ACA Gemological Laboratory
Welcome to this one of a kind diamond, gem and gemology website. Here you will advance your knowledge, well beyond that of conventional teaching, especially of diamond qualities, and new aspects of the 4 C’s (cut, color, clarity and carat weight). Of most interest and importance is diamond cut, the most essential of the 4 C’s to the diamond’s “light performance”, (its beauty in various and different lighting). Learn about the Ideal Round Brilliant Cut and how this most popular of all diamond cuts maximizes the desirable properties of the diamond’s beauty, which are brilliance, fire, and scintellation.
It is not widely known but the Round Brilliant Cut is traced to 1860 and the first American-cutter Henry Morse. Learn how it evolved to become the pinnacle of diamond beauty and light performance, today’s “Ideal Cut” diamond.
While gaining an understanding why this cut exceeds the performance and beauty of all other cuts and shapes you will be learning to identify and separate the true Ideal from the pretenders.
Enjoy the articles, and contact us with any questions or comments.
Breakthrough in Objective Diamond Clarity Grading. They said it couldn’t be done: “It is impossible to develop a precise description of any clarity grade except flawless….Clarity grading is like appraising a painting… Clarity grading is as much an art as an objective science; becoming really proficient at it takes time, experience, and practice” (GIA,1994, p. 2).
Now there is an easy path to proficiency in diamond clarity grading with: “Objective Diamond Clarity Grading”. Get your copy now for the introductory price of only $19.95 at the computer address:
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