Difference among Lab Created, Lab Grown and Simulated Diamonds

Lab grown diamonds are often confused with simulants and lab created diamonds. But there is a striking difference between the three. Lab created is a broad term used for all diamonds which have not originated from the Earth’s core. Lab grown diamonds are physically, optically and chemically same as earth mined diamonds, except that they are grown in a controlled environment inside a lab, replicating the same process that occurs inside the Earth’s crust.

Lab grown diamonds are grown over thin layers of natural diamond and layers of carbon are deposited through Advanced Technological Processes. They are so identical to earth mined diamonds that it’s impossible for naked eyes to tell the difference. Only labs with the most sophisticated technologies like IGI and GIA can tell the difference.

On the other hand, simulants are diamond look-alikes and are made from Cubic Zirconia, also known as CZ. Moissanite is another simulant made of crystal carbide and has more fire than Cubic Zirconia. Both the simulants replicate the crystalline structure of diamonds but are chemically very different from pure diamonds. Though lab created, these simulants change their properties over time and may change color as well. Lab grown diamonds are pure carbon diamonds and they last as long as earth mined diamonds.

Comparison Chart
  •  
  • Properties
  • Chemical Composition
  • Crystalline structure
  • Dispersion
  • Density
  • Hardness
  • Clarity
  • Cut
  • Color
  • Refractive Index
  • Simulated 
  • Moissanite
  • Sic
  • HEXAGONAL
  • 0.104
  • 3.21
  • 9.25
  • VVS to VS
  • Very good to Good
  • D to J
  • 2.65
  • Diamonds
  • Cubic Zirconia (CZ)
  • ZrO2
  • CUBIC
  • 0.066
  • 5.7
  • 8.25
  • A to AAAA
  • Ideal to Very good
  • A to AAAA
  • 2.42
  • Real 
  • Earth-Mined Diamonds
  • C
  • CUBIC
  • 0.044
  • 3.52
  • 10
  • IF to I2
  • Ideal to Very good
  • D to Z
  • 2.42
  • Diamonds
  • Lab Grown Diamonds
  • C
  • CUBIC
  • 0.044
  • 3.52
  • 10
  • IF to I2
  • Ideal to Very good
  • D to Z
  • 2.42
4Cs CHARACTERISTICS SAME AS EARTH-MINED DIAMONDS
4Cs CHARACTERISTICS SAME AS EARTH-MINED DIAMONDS
COLOR Lesser the color, higher the grade. Even the slightest hint can make a dramatic difference in value. The ideal white diamond is absolutely colorless and receives D grade; the least valuable diamond is a noticeable yellow-brown and receives a Z grade. CLARITY Clarity grades assess the number, size, relief, and position of inclusions and blemishes. Diamonds are graded from “Included” to “Flawless” depending on how many inclusions are visible at 10X magnification. CUT Cut (proportions, symmetry, and polish) is a measure of how a diamond's facets interact with light. A well-cut stone reflects all the light back towards the viewer, while a poorly cut stone allows some light to escape from the back. CARAT WEIGHT A carat (ct.) term refers to the unit of weight measurement to weigh diamonds and other gemstones. Often this term is misunderstood with size of the stone but it is a diamond’s weight not its size. A carat is equal to 0.2 grams.
Diamond Color Chart
colorless
Pure ignis only retail diamonds in colorless and near colorless range
NEAR colorless
NEAR colorless
Slightly tinted
Faint
Yellow
Very light
Yellow
light
Yellow
Diamond clarity Chart
fl-if
flawless
vvs1-vvs2
very very slightly included
vs1-vs2
very slightly included
si1-si1
slightly included
I1-I3
INCLUDED Pure ignis does not offer diamonds in this category.
CERTIFICATE OF AUTHENTICITY
Brighter Side of Lab Grown Diamonds
We provide certificate of authenticity on all our jewelry. Moreover, all our Lab Grown Diamonds above 0.5 carats are certified by renowned gemological labs like IGI and GCAL. We also provide GIA certificates upon customer's request.
Lab Grown Diamonds
Earth-Mined Diamonds