Lab grown. Laboratory-grown. Synthetic. Man-made. Cultured.

If you've shopped for diamonds in different countries—or even browsed different jewellery websites—you've probably noticed something confusing: the same product is often described using different names.

So which one is correct?

The answer is surprisingly simple: they all can be.

The terminology used for lab grown diamonds depends largely on local regulations, industry standards and consumer protection laws rather than differences in the material itself.

Understanding why these names exist can help you shop with confidence and avoid much of the confusion surrounding one of the jewellery industry's fastest-growing categories.

The Science Is Simple

A diamond is a crystal of carbon arranged in a cubic crystal structure.

Whether that crystal formed naturally within the Earth or was grown using modern technology, its fundamental chemistry remains the same.

Both lab grown and mined diamonds share:

• The same chemical composition (carbon)
• The same crystal structure
• The same hardness
• The same optical properties
• The same thermal conductivity

The defining difference is origin, not composition.

One formed naturally over geological time.

The other was grown using advanced manufacturing processes such as Chemical Vapour Deposition (CVD) or High Pressure High Temperature (HPHT).

Why Isn't Everyone Using the Same Name?

Because different countries regulate jewellery terminology differently.

The primary goal of these regulations is consumer transparency.

Most regulators agree on one important principle:

Buyers should always know whether a diamond is lab grown or mined.

Where countries differ is how that information should be communicated.

Some prefer:

• Lab grown
• Laboratory-grown
• Synthetic
• Man-made

Others restrict or encourage particular terminology.

What Does "Synthetic" Actually Mean?

The word synthetic often causes the most confusion.

In everyday language, many people associate "synthetic" with something fake or imitation.

In science, however, the meaning is very different.

A synthetic gem is a human-made crystal that has essentially the same chemical composition, crystal structure and physical properties as its naturally occurring counterpart.

That definition has been used in gemmology for more than a century.

A synthetic diamond is not cubic zirconia, moissanite or glass. It is diamond.

The distinction is that it was created by people rather than geological processes.

Why Some Countries Prefer "Lab Grown"

Many jewellery retailers and trade organisations now favour the term lab grown diamond because consumers generally find it easier to understand.

The phrase immediately communicates two important ideas:

• The diamond was grown rather than mined.
• It originated in a laboratory or manufacturing facility.

For many buyers, "lab grown" feels more descriptive and less likely to be confused with imitation products.

Why Russia Uses Different Terminology

Recently, Russia introduced regulations requiring laboratory-grown diamonds to be marketed using the term synthetic rather than lab grown, along with changes to how they are described and weighed within its domestic market.

This differs from terminology commonly used in many other countries, where terms such as lab grown diamond, laboratory-grown diamond and synthetic diamond may all be permitted, provided the origin is clearly disclosed.

The result is that consumers may encounter different names for essentially the same product depending on where they are shopping.

Is a Lab Grown Diamond a Mineral?

This is where geology and gemmology intersect.

From a geological perspective, the answer is no.

A mineral is generally defined as a naturally occurring crystalline solid with a specific chemical composition and internal atomic structure.

Because lab grown diamonds are created by people, they do not meet the geological definition of a mineral.

However, they are still diamonds in terms of their chemistry and crystal structure.

This distinction is important:

• Diamond describes the material.
• Mineral describes a naturally occurring material.

So while a mined diamond is both a diamond and a mineral, a lab grown diamond is a diamond but not a mineral.

Does the Name Change the Diamond?

No.

Changing the terminology does not alter the physical properties of the material.

Whether a retailer describes a stone as:

• Lab grown diamond
• Laboratory-grown diamond
• Synthetic diamond

…the underlying crystal remains the same.

What matters most is that the origin is disclosed clearly and honestly.

The Importance of Transparency

The jewellery industry has become much better at disclosing origin over the past decade.

Reputable sellers should clearly state whether a diamond is:

• Lab grown
• Mined

They should also disclose:

• Any treatments
• Certification
• Grading laboratory
• Relevant guarantees

Clear disclosure benefits everyone—from first-time buyers to experienced collectors.

Why Terminology Matters

Words shape consumer perception.

To a scientist, synthetic is a precise technical description.

To many consumers, however, it may suggest imitation or something that isn't genuine.

Similarly, lab grown has become widely recognised as describing diamonds that are grown rather than mined, while still acknowledging that they are genuine diamond crystals.

This difference between scientific language, marketing language and legal terminology explains why naming conventions continue to evolve around the world.

So Which Name Is Correct?

The answer depends on where you are.

In some countries, synthetic is the preferred legal term.

In others, lab grown or laboratory-grown is widely used and accepted.

The important point is that these terms describe origin, not quality.

A well-made lab grown diamond remains a diamond regardless of the wording used to describe it.

Gemdrop's Perspective

At Gemdrop, we believe transparency is more important than terminology.

Whether a gem is lab grown or mined, customers deserve accurate information about what they are buying.

Rather than focusing on labels alone, we encourage buyers to consider the characteristics that truly matter:

• Beauty
• Craftsmanship
• Certification
• Disclosure
• Value
• Personal preference

The best choice isn't determined by a single word on a label.

It's determined by finding the gem that matches your style, your values and your budget—with complete confidence in its origin.