Advantages Lab-Grown Diamonds (Lab-Grown Diamonds)


Diamonds of the Future

Sustainable & Responsibly Sourced

Main advantages Green World Diamonds:

  • Real diamonds (official certificates IGI, GCAL, GIA etc.)
  • Our lab diamonds are chemically, physically and optically identical to mine diamonds
  • 1/3 of the mine-diamond price (Up to 70% cheaper than mine-diamonds)
  • Affordable colored diamonds (Fancy Color Diamonds)
  • More sustainable & environmentally friendly & social/ethical (ESG; Sustainability)

Real diamonds (official certificates IGI, GCAL, GIA etc.)

Lab diamonds are 100% real diamonds

  • Diamond = Diamond (regardless of origin)

Important legislative change in July 2018 by the U.S. Federal Trade Commission (FTC), which develops trade guidelines for the gemstone and jewelry industry:

“Lab grow diamonds” = diamonds, so do “(natural) mine diamonds”. The FTC says: A diamond is a diamond regardless of its origin . “a diamond is a diamond” no matter of its origin.
… “removed a section on misleading illustrations, and eliminated the word “natural” from the definition of diamond in section 23.12(a)” …
Summary of Basis and Purpose for the Revised Jewelry Guides – August 8, 2018
H. Cultured Diamonds p. 79

1) Statement that Lab Grown diamonds are 100% real diamonds!
Lab-Grown Diamonds are chemically, physically and optically identical to mine diamonds!
+ Word “natural” deleted from diamond definition
However, the Commission draws the attention of marketers to the fact that it would be misleading to use the terms ‘genuine/real’, ‘unadulterated’, ‘natural’ or ‘synthetic’ to imply that a laboratory-grown diamond (i.e. a product with essentially the same optical, physical and chemical properties as a diamond obtained from mining) is not in fact a real diamond. As discussed below, the Commission no longer defines a “diamond” in terms of “natural” because it is no longer accurate to define diamonds as “natural” when it is now possible to manufacture products that have essentially the same optical, physical, and chemical properties as diamonds mined in mines.358

2) Deletion of the word “Synthetic” as a qualifying term for Lab Grown Diamonds (which are real diamonds).
However, if a marketer uses the term “synthetic” to imply that a competitor’s lab-grown diamond is not a real diamond, it would be misleading.353

3) Wording recommendations (new without “Synthetic”):
–        “laboratory-grown”
–        “laboratory-created”
–        “[manufacturer name]-created”

4) “Cultured” Diamonds:
This wording may be used (even alone) if it is evident that the stone was produced in the laboratory.

  • Chemically, physically and optically identical to mining diamonds

Diamond – the material, not the gemstone – is a mineral composed of “essentially pure carbon crystallized in the isometric cubic system,” according to the U.S. Federal Trade Commission (FTC), which develops trade guidelines for the gem and jewelry industry.

  • Crystallized carbon (pure carbon)
    Both rennet diamonds and mine diamonds are made of this material.
  • Same chemical composition as mine diamonds
  • Same crystal structure as mine diamonds

They have the same chemical composition and crystal structure as diamonds created by nature.

What are diamonds made of? Material laboratory diamonds and mines diamonds. Both consist of the same material: crystallized carbon
What are diamonds made of? Material laboratory diamonds and mines diamonds. Both consist of the same material: crystallized carbon
Are lab diamonds real diamonds? Yes! A Lab diamond is a real, genuine diamond! Chemically, physically and optically identical to mine diamonds.

Lab grown Diamonds differ only in the origin of mine diamonds

Also called: “man-made” or “created” diamonds.

Sometimes mistakenly called “synthetic” (synthetic diamonds)

Synthetic is incorrect because crystallized carbon (which all diamonds are made of both lab diamonds and mine diamonds) is a naturally occurring substance on earth and nothing synthetic. And lab diamonds (Lab-Grown Diamonds) are real, 100% genuine diamonds!

Difference: origin laboratory versus mining

Winter day ice & ice from refrigerator

The difference between lab-grown and mine diamonds could be compared to the difference between ice that forms outside on a winter day and ice that forms in your refrigerator. Since mine diamonds are ancient, a more apt comparison might be between ice from an ancient glacier and ice from your refrigerator. But either way, both are ice cream. Both are frozen H2O, regardless of origin.
You could also say that rennet diamonds are the equivalent in pearls of cultured pear ls.
By analogy with humans, the Lab diamond would be a test-tube baby.


Not to be confused with “fake diamonds” such as “diamond simulants”.
e.g. moissanite made of silicon carbide or “zirconia” made of zirconium(IV) oxide, etc.,

  • Top certificates (authenticity & quality guarantee)

Quality guarantee through top certificates from renowned independent diamond testing companies/gemological institutes such as IGI, GCAL, GIA, HRD Antwerp, AGS and IGL. These test institutes, which are independent of us as the seller as well as of the manufacturing laboratories, guarantee the authenticity and quality in detail by means of a certificate.

Most Lab Grown Diamonds have IGI certificates.
IGI specialized in Lab Grown diamonds at an earlystage
(GIA, etc., in the beginning assigned Lab diamonds only a colorrange, e.g., D-F, and not an exact color, e.g., F. This practice has been changed only recently.)

✓ SAME diamond certificates

→ from the same international gemological laboratories such as IGI, GCAL, GIA, etc.
→ evaluated with the SAME criteria as “mining diamonds” and independently, objectively analyzed, described and classified.

Example IGI Certificate

Photo with permission of IGI “Courtesy of International Gemological Institute”.

Example IGI(International Gemological Institute) Certificate



See the section in the IGI certificate:

A laboratory grown diamond is one that has essentially the same chemical, physical and optical properties as a mined diamond, with the exception of being grown by man (a manufactured product).

Example GCAL(Gem Certification and Assurance Lab) Certificate

The certificate from GCAL. Note the “*Comments: ” section, which confirms the authenticity of this diamond.

Note the “*Comments” section in the GCAL certificate:

Comments: This man-made diamond was grown in a laboratory by the CVD method, and has the same chemical, physical and optical properties as an earth mined diamond.

official certificates from independent certification companies (gemmological laboratories) such as IGI, GCAL, GIA etc.

These same gemological laboratories make analogous certificates for mined diamonds.

The certificate says:

  1. “DIAMOND”
    → this means that it is a 100% real, genuine diamond.
    If it were not a real diamond, the word diamond (= gemstone designation) should not be written here. It should say e.g. Moissanite or Zirconia (although there are no certificates for Zirconias).
    GCAL (Gem Certification and Assurance Lab)
    Writes in *Comments explicitly → “…and has the same chemical, physical, and optical properties as a mine diamond”
    IGI (International Gemological Institute)
    Writes in *Comments explicitly → “…A lab-grown diamond is one that has basically the same chemical, physical, and optical properties as a mine diamond, except that it was grown by a human (a manufactured product).”
    → this means that it is a lab diamond (a diamond grown in the laboratory).
    So you can be sure
    • “clean” origin, no blood diamond
    • sustainable / ESG / environmentally friendly
  3. four Cs (color, clarity, cut and carat)
    → exactly the same criteria/characteristics/classification as mining diamonds
    (precisely because both are also real diamonds)
  4. “Comments: This laboratory grown diamond was grown using High Pressure High Temperature (HPHT).”
    Information with which process the diamond is made/grown HPHT or CVD
  5. Inscription(s) LABGROWN IGI LG11849219
    → Laser engraving with number on the girdle of the diamond
    Thus, the stone is distinctive/non-interchangeable and guaranteed conflict-free & sustainable.

All Green World Diamonds (except the very small diamonds) have a laser engraving with a number (girdle/belt inscription with the report number) you can read this number with a magnifying glass on the diamond girdle and this is also written on the certificate. This way you can be sure that your stone is the one that has been assessed by the independent certification company and that it is identical to the stone on the certificate.

Note the fine inscription that adorns this diamond.

Up to 70% cheaper than mined diamonds

  • Cheaper, Bigger, Sparklier

More diamond for your money → bigger diamonds & better quality

Massively cheaper prices for lab diamonds than for mined diamonds from mostly unknown origins.
Price gap widens with carat/diamond size & quality
…there is no objective reason to prefer a mining diamond to a lab diamond. They differ only in their origin (natural versus laboratory) and are massively more expensive. Rather afford a larger nicer diamond instead of a smaller mined diamond.

Colored diamonds become affordable

  • Fancy Color Diamonds
  • Yellow, Blue, Pink….

Thanks to the Lab Grown technique, “Fancy Color Diamonds” (colored diamonds such as yellow, blue, pink, etc.) suddenly become affordable. Mining diamonds that are colored are extremely rare in nature and are therefore practically prohibitively expensive (costs idR. several hundred thousand if not millions of CHF).


Sustainable & Environmental, Social & Ethical (ESG; Sustainability)

Sustainability (environmental friendliness) comparison lab diamonds versus mine diamonds. Green World Diamonds.
  • 100% conflict free + environmentally friendly
  • Sustainable
  • More environmentally friendly with massively smaller CO2 footprint

If you value a sustainable lifestyle, there is no reason to buy a mined diamond.

In addition, there is the price advantage of Lab-Grown diamonds.

  • Ethical
  • Social
    …Lab-Diamonds because we care about the environment and you can buy diamonds with a clear conscience…
  • No blood diamonds
    Financing of wars & terror and dismantled in violation of human rights
    (Hollywood drama Blood Diamond with Leonardo DiCaprio 2006)
  • No child labour
  • No overexploitation by mining of the environment, etc.