History Of Treatments And Creation Of Synthetic Diamonds

(via Antwerp Facets, Jan 2007) Landmark dates in the history of treatments and creation of synthetic diamonds.

- 1910: Coating, Irradiation
- 1950: Irradiation + Annealing
- 1950s: Synthetics (developmental)
- 1980: HPHT (high pressure high temperature) synthetics, Annealing (black)
- 1999: HPHT (high pressure high temperature) treatment
- 2001: CVD (chemical vapor deposition) synthetics
- 2004: HPHT (high pressure high temperature) + Irradiation + Annealing

Useful link:
www.wtocd.be