Notes from the bench: how stones are graded, what CAD can and cannot reproduce, and what actually drives the cost of a custom piece.
A GRA card lists the stone's measurements, weight, and grade, and the number is laser inscribed on the girdle. Here is how to read one and check it.
Cut, color, clarity, and carat work the same way on a lab-grown stone as on a mined one. Here is what each grade means and which one to spend on.
Both stones are grown in a lab and both look white in a setting. Hardness, fire, grading, and price separate them once you compare the numbers.
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