Two diamonds, one sparkle, very different stories. A straight-talking guide to lab-grown and natural diamonds: how they compare, what they cost, and how to decide which one belongs on your hand.
Few questions come across our counter more often than this one, usually asked a little quietly, as if it might be rude: "So... should I get a lab diamond?"
It is not rude at all. It is one of the smartest questions you can ask, and you deserve a straight answer rather than a sales pitch. My family has been in the jewelry business since 1991, and we work with both natural and lab-grown diamonds. Here is the honest version, the one we would give our own friends.
First, the surprising part: they are both real diamonds
A lab grown diamond is not a lookalike like cubic zirconia or moissanite. It is carbon crystallized into the same structure as a diamond pulled from the earth, with the same hardness, the same fire and the same brilliance. Side by side, even a trained eye cannot tell them apart. It takes specialized laboratory equipment.
The difference is the origin story. A natural diamond formed deep underground over an almost unimaginable stretch of time. A lab-grown diamond is created above ground in a matter of weeks, using one of two methods with wonderfully technical names: high pressure, high temperature (HPHT) or chemical vapor deposition (CVD). Both recreate, in a controlled setting, the conditions that make a diamond a diamond.
How they compare, honestly
Beauty
A tie. Both are graded on the same 4Cs of cut, color, clarity and carat, and a beautifully cut diamond of either kind will stop you in your tracks. Cut quality matters far more to sparkle than origin does.
Price
This is where lab-grown diamonds get very interesting. For the same size and quality, a lab-grown diamond typically costs a fraction of what a comparable natural diamond does. For many couples, that means a larger stone, a better grade, or simply more room in the budget for the honeymoon.
Long-term value
Here is the part a lot of people skip, so we will say it plainly. Lab grown diamond prices have come down considerably over the years, and their resale value is very low. Natural diamonds hold their value better, though we would gently remind anyone that a diamond bought at retail is a piece of love, not a stock portfolio. If resale matters to you, natural has the edge. If it does not, lab grown can be a wonderfully practical choice.
Rarity and sentiment
For some people, the idea that a stone took a billion years to form is the whole point. That feeling is real and it is worth honoring. For others, what makes a ring meaningful is the person, the moment and the design, not the geology. Neither is wrong.
Environmental and ethical questions
Both kinds of diamonds have a footprint, and the details depend heavily on where and how a stone was mined or grown. Be cautious of any jeweler who tells you one is simply good and the other simply bad. Ask questions, ask for documentation, and choose the jeweler who answers you plainly.
Always ask for the paperwork
Whichever you choose, a significant diamond should come with a grading report from a respected independent lab. Lab-grown diamonds are commonly graded by IGI, and GIA grades both natural and lab-grown stones. The report should clearly state whether the diamond is natural or laboratory-grown, and many stones also carry a tiny laser inscription on the girdle that matches the report number.
And one rule we live by: an honest jeweler will always tell you clearly and immediately which one you are looking at. If anyone is vague about it, walk out.
So which one is right for you?
- Choose lab-grown if you want the most size and quality for your budget, and long-term resale is not a priority.
- Choose natural if rarity, tradition or long-term value matter most to you, or if you are planning an heirloom to pass down.
- Still torn? Look at them in person. Most people know within a few minutes, and it is rarely the answer they expected.
Come compare them with us
We would love to put a natural and a lab-grown diamond in your hand side by side and let you decide for yourself, no pressure and no jargon. Stop by our Portsmouth, NH or Newburyport, MA stores, or send us a note with what you are looking for.
And if you are leaning lab-grown, keep an eye on us. We are designing our own collection of lab-grown diamond rings in-house, starting with a sideways, bezel-set emerald cut we cannot wait to show you. (Curious about that style? Read our guide to bezel settings.)