This is now the first question a lot of people ask, and it attracts more sales pressure than almost any topic in the trade — in both directions. Some sellers push lab-grown because the margins are better. Others dismiss it because it threatens their inventory.

So here is the even-handed version.

They Are the Same Material

This is the part that is not up for debate. A lab-grown diamond is a diamond: the same carbon crystal structure, the same hardness, the same refractive index, the same sparkle. It is not a simulant. Cubic zirconia and moissanite are different materials that imitate diamond. Lab-grown is diamond, produced in weeks in a controlled environment rather than over geological time underground.

You cannot tell them apart by looking, and neither can a jeweler without specialist equipment. Anyone who claims they can spot the difference across a counter is overstating it.

So Why the Price Difference?

Because supply is fundamentally different. Natural diamonds are finite and extraction is expensive. Lab-grown production capacity has expanded enormously, and as it has, prices have fallen sharply and continued falling.

For the same budget you can generally buy a substantially larger or higher-graded lab-grown stone. That is real and it is the main argument in its favour.

The Resale Question — Be Clear-Eyed

Here is where people get caught out, and where we would rather be blunt than diplomatic.

Because lab-grown prices have fallen and production keeps expanding, lab-grown stones have held their value poorly. A lab-grown diamond bought today may be worth considerably less than you paid within a few years, simply because the same stone will cost less to make.

Natural diamonds are not a great investment either — anyone selling you a diamond as an investment is selling you something else. Retail-to-resale on natural stones is a steep drop too. But natural stones have a secondhand market with a floor under it, and at the moment lab-grown does not in the same way.

For most people this is irrelevant, because an engagement ring is not an asset you plan to liquidate. But if the ring might one day be sold, traded up, or passed down with the expectation of value, it belongs in the decision.

The Arguments on Each Side, Fairly

For lab-grown: far more stone for the money. A controlled, traceable origin. No mining. For someone who wants a two-carat look on a one-carat budget, it is an honest answer to a real problem.

For natural: rarity is genuinely part of what people are buying, and that is not irrational — people buy meaning, not just material. Resale behaviour is better understood. And for some, the fact that the stone is old beyond comprehension is the entire point.

What is not a good argument either way: that one is “fake”. Lab-grown is real diamond. And “mined diamonds are always unethical” is too broad — origin and practice vary enormously, and modern supply chains have more traceability than they once did.

Four Things to Check Before Buying Either

  1. Get it in writing. Any lab-grown stone should be clearly disclosed as laboratory-grown on your receipt and on any certificate. Reputable sellers do this without being asked. If disclosure is vague, walk away.
  2. Look at cut before anything else. This matters far more than origin. A poorly cut lab-grown and a poorly cut natural both look dull. See the 4Cs.
  3. Compare in person, not on screens. Two stones with identical paperwork can look different in the hand. This is the single best reason to buy locally.
  4. Ask about the setting separately. The stone is one decision, the setting is another, and the setting affects daily wear more.

Our Honest Position

We do not think there is a universally right answer, and we are suspicious of anyone who says there is. The right stone depends on what the person wearing it values, what the budget is, and whether long-term value matters in your situation.

What we will do is tell you plainly what you are looking at, what it is likely to be worth later, and where the money is best spent — including when that means a smaller stone in a better cut, or a lab-grown stone in a setting worth keeping.

Come and Compare

Ask us what we currently have in each, and look at them side by side under ordinary light. Five minutes at the counter settles this question better than a week of reading.

Rosedale Highway — (661) 587-9298
Ming Avenue — (661) 834-0824

Designing something around a stone you choose? See custom engagement rings.