The fundamentals
What are lab-grown diamonds?
How they are made, why they are real diamonds, and where they differ from mined stones.
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Learn about lab-grown diamonds
You do not need to become a diamond expert to make a good choice. Start with the decision you are trying to make, then use these plain-language explanations when a grade, report, or seller claim needs context.
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Our most useful starting points
Quality
The lab-grown diamond 4Cs
Understand cut, color, clarity, and carat without paying for grades you cannot see.
Read moreCertification
Grading and certification
How to read a grading report and why the laboratory matters.
Read moreLab-grown diamond fundamentals
Start with the questions buyers ask most about what lab-grown diamonds are, why people choose them, and how the market is changing.
Understand diamond quality
Learn what affects beauty, price, and the way a diamond looks in everyday wear.
Diamond cut
Why cut has the greatest effect on sparkle and visual appeal.
Diamond color
Choose a grade that looks right with your shape and setting.
Diamond clarity
Find an eye-clean stone without overpaying for rarity.
Carat weight
How weight, dimensions, shape, and visible size work together.
Polish and symmetry
When these finish grades matter to a buying decision.
Fluorescence
What fluorescence means and when it deserves attention.
Diamond shapes
Choose a shape by its look, proportions, price, and the quality details that matter for that cut.
Fancy-color diamonds
Learn how lab-grown diamond colors form, what affects their appearance, and what to compare when buying.
Diamond comparisons
Understand the difference between lab-grown diamonds and common diamond simulants.