LAB GROWN DIAMOND - SCI & TECH

News: Are lab-grown diamonds as sustainable as advertised?

 

What's in the news?

       The natural diamond industry has been fueled by a glittering marketing strategy for decades, but is the sustainability of modern, lab-grown diamonds as clear-cut as consumers believe as the production of laboratory-grown diamonds is an energy-intensive process.

 

Key takeaways:

       Laboratory-grown diamonds (LGDs) are much in demand now and the Indian government has decided to promote them in a big way to boost the diamond industry, which has its headquarters in Surat.

 

Lab-grown Diamond:

       Lab-grown diamonds (LGDs) are diamonds that are produced using specific technology which mimics the geological processes that grow natural diamonds.

       They are not the same as “diamond simulants” – LGDs are chemically, physically and optically diamond and thus are difficult to identify as “lab-grown.”

 

Properties of LGDs:

       LGDs have basic properties similar to natural diamonds, including their optical dispersion, which provide them the signature diamond sheen.

       However, since they are created in controlled environments, many of their properties can be enhanced for various purposes.

 

Hard to differentiate:

       While materials such as Moissanite, Cubic Zirconia (CZ), White Sapphire, YAG, etc. are “diamond simulants” that simply attempt to “look” like a diamond, they lack the sparkle and durability of a diamond and are thus easily identifiable.

       However, differentiating between an LGD and an Earth Mined Diamond is hard, with advanced equipment required for the purpose.

 

Production of LGDs:

There are multiple ways in which LGDs can be produced.

  1. High Pressure, High Temperature (HPHT) Method
  2. Chemical Vapor Deposition (Detonation nano-diamonds)

 

Significance:

       LGDs are more eco-friendly than traditional diamond mining.

       The production of LGDs skips the most socially exploitative aspects of diamond manufacturing, namely the highly exploitative mining process which often employs impoverished Africans in terrible conditions.