Diamond knowledge · 3 MIN READ
Natural or lab-grown diamonds: choosing with clarity
Natural and laboratory-grown diamonds are both diamonds. The meaningful distinction is how they formed, followed by the characteristics of the individual stone. Start with that distinction, then decide what matters to you about the jewelry you want to wear.
Published September 23, 2026
What the two names mean
Natural diamonds form through geological processes. Laboratory-grown diamonds are produced using technology, commonly high pressure and high temperature or chemical vapor deposition. They have essentially the same chemical, physical and optical properties as natural diamonds.
That does not mean every stone looks the same. Origin describes one part of the story; the individual diamond still has its own color, clarity, proportions and appearance. Compare the actual stones rather than assuming either category guarantees a particular look.
Lab-grown is different from a diamond simulant
Moissanite and cubic zirconia can resemble diamond, but they are different materials. A laboratory-grown diamond is not simply a diamond look-alike. Ask for the material and origin to be written clearly on the product description and your purchase documents.
Also separate origin from treatment. “Natural” does not automatically mean untreated. Ask what is known about treatments and which details appear in the accompanying report.
What a report can tell you
You cannot reliably establish natural versus laboratory-grown origin just by looking at a finished ring. Gemological laboratories use specialized testing. Ask who issued the report, what services that report includes and how it is matched to the stone.
Read the actual document rather than relying on a salesperson’s shorthand. Report formats and terminology vary. A report provides information about a stone; it does not tell you whether you will enjoy its proportions on your hand or whether its setting fits your everyday life.
Make your own priorities explicit
Try finishing this sentence before your appointment: “The part of this choice I care most about is…” Your answer might involve geological origin, the appearance of a particular diamond, a family tradition or the design as a whole. There is no need to borrow someone else’s reason.
If a sourcing or environmental claim matters to you, request evidence specific to that stone and supplier. Broad category labels alone do not document a particular supply chain. Keep unsupported claims out of your decision.
Bring the decision back to the finished piece
Look at stones in more than one type of light, alongside the metal color and setting you prefer. Ask about maintenance, purchase terms and the documentation you will receive. Write down which details are essential and which are flexible.
For a conversation at our downtown Seattle studio, tell us your preferences early and ask which options are available for your project. This guide explains the categories; it is not a statement of current inventory.