What Is a Lab Grown Diamond? Everything Buyers Need to Know

Loose diamond beside a diamond ring on a neutral surface

A lab grown diamond is a real diamond created in a controlled environment rather than mined from the earth. It has the same carbon crystal structure as a natural diamond, so it shares the same basic hardness, brilliance, and optical properties. For buyers, the main difference is origin, not whether the stone is a real diamond.

When shopping, the key questions are usually about how lab grown diamonds are made, how they compare with natural diamonds, how they are graded, and what affects price. Those are the points that matter most when deciding whether a lab grown diamond fits your budget and priorities.

What a lab grown diamond is

Lab grown diamonds are diamonds formed by technology that reproduces the conditions needed for diamond growth. The two production methods buyers will see most often are CVD and HPHT, which also appear in store catalog descriptions for loose stones and finished jewelry. La Maison Val D'or lists both CVD and HPHT lab grown diamond items, including loose diamonds and finished pieces, showing these terms are part of normal product labeling in the market.

That means a lab grown diamond is not the same thing as cubic zirconia or moissanite. Those are different materials. A lab grown diamond is still diamond.

How lab grown diamonds are made

Two loose diamonds in a clean jewelry workshop setting

Most lab grown diamonds are produced by either Chemical Vapor Deposition, called CVD, or High Pressure High Temperature, called HPHT. In simple terms, both methods create conditions that allow carbon to crystallize into diamond. Some stones are grown by one method and later treated or refined by another process to improve color or other characteristics.

If you are comparing listings, you will often see the growth method stated directly. For example, La Maison Val D'or includes CVD and HPHT in product titles for loose lab diamonds and certified stones, such as IGI certified lab grown loose diamonds and other lab diamond options in its catalog. Buyers can also browse broader loose precious stones and rings collections when comparing formats and settings.

Lab grown vs natural diamonds

The main difference between lab grown and natural diamonds is how they formed. Natural diamonds developed underground over long geological periods, while lab grown diamonds are created in a controlled setting over a much shorter production cycle. To the eye, they can look the same, and grading still focuses on cut, color, clarity, and carat.

For many buyers, the practical differences are price, supply, and long-term market behavior. Lab grown diamonds are commonly sold at lower prices than natural diamonds of similar specifications, but resale expectations also tend to differ. If your priority is visual performance and size for budget, lab grown diamonds often appeal for that reason. If your priority is natural origin, that points toward mined stones instead.

What buyers should check before purchasing

Diamond certificate, loupe, and ring on a clean desk

The same factors used for natural diamonds still matter here: cut, color, clarity, and carat weight. Cut usually has the biggest effect on visual performance because it influences how the diamond returns light. A larger carat weight with weak cut quality may be less impressive than a smaller, better-cut stone.

Certification is also important. La Maison Val D'or offers multiple IGI certified lab grown diamond products, including engagement rings, loose stones, and tennis necklaces, such as this IGI certified emerald cut engagement ring and this IGI certified lab grown diamond tennis necklace. A grading report helps confirm the stated quality characteristics of the stone you are buying.

Quick buying checklist

  • Confirm whether the diamond is CVD or HPHT if that matters to you.
  • Review the grading report, especially cut, color, clarity, and carat.
  • Check whether the stone is certified by a recognized lab such as IGI.
  • Compare the total design, including metal type, setting style, and side stones.
  • Ask about return policy, customization, and any warranty or service terms.

How certification works

Lab grown diamonds can be graded and certified just like natural diamonds. The report identifies that the stone is lab grown and records measurable characteristics such as carat weight, color, clarity, proportions, and sometimes growth method. This gives buyers a common standard for comparison across listings.

In the store catalog, several products explicitly reference IGI certification, including loose diamonds, rings, earrings, and necklaces. There are also listings that reference GIA or IGI certification for loose pear cut lab grown diamonds, which shows why buyers should read each listing carefully rather than assume every item has the same documentation.

Are lab grown diamonds cheaper?

Usually, yes. Lab grown diamonds are generally priced below natural diamonds with similar visible specifications. That price gap is one of the main reasons buyers consider them, especially for larger center stones or higher color and clarity combinations.

But lower price does not mean every listing is automatically a good value. Compare certification, cut quality, proportions, setting quality, and whether the total price reflects a loose stone or a finished piece. A high-carat lab diamond ring can still represent a significant purchase, so the same careful review still applies.

Do lab grown diamonds hold value?

This is where buyers should be especially realistic. Lab grown diamonds are real diamonds, but they typically do not follow the same resale expectations many consumers associate with natural diamonds. Because supply can scale with production technology, secondary market pricing may be weaker or less predictable.

For that reason, it is better to buy a lab grown diamond for wear, design, and value at purchase rather than as an investment. If long-term resale value is your top priority, that should be part of your comparison before you buy.

Who should buy a lab grown diamond?

A lab grown diamond can make sense for buyers who want a real diamond and care most about appearance, size, certification, and price efficiency. It is also a practical option for shoppers considering categories where diamond coverage and total carat weight affect cost quickly, such as diamond necklaces or statement rings.

If you are comparing finished jewelry, store examples include large certified engagement rings, loose diamonds for custom work, and lab grown tennis necklaces in multiple carat weights. That range helps show how lab grown diamonds are used across both bridal and fashion jewelry categories.

FAQ

Is a lab grown diamond a real diamond?

Yes. A lab grown diamond is a real diamond with the same basic chemical composition and crystal structure as a natural diamond. The difference is that it is grown in a controlled environment instead of mined.

What is the difference between CVD and HPHT?

CVD and HPHT are two different methods of growing diamonds in a lab. Both produce real diamonds, but a grading report or product listing may identify which method was used.

Are lab grown diamonds certified?

They can be. Many lab grown diamonds are sold with grading reports from recognized labs such as IGI, and some listings may also reference GIA or IGI documentation depending on the stone.

Are lab grown diamonds better than natural diamonds?

Neither is automatically better for every buyer. Lab grown diamonds usually offer lower purchase prices for comparable specifications, while natural diamonds appeal to buyers who specifically want earth-formed origin.

Can you use a lab grown diamond in engagement rings and necklaces?

Yes. Lab grown diamonds are widely used in engagement rings, earrings, bracelets, loose stones for custom jewelry, and necklace designs, including tennis necklaces and pendants.