Clear Neutral
advertisement
Clear Neutral
advertisement
Clear Neutral
advertisement
Goto your account
Search Stories by: 
and/or
 

News












Several major manufacturers of lab-grown diamonds, including WD Lab Grown Diamonds and Pure Grown Diamonds, have ended their legal battle over patented processes.
Several major manufacturers of lab-grown diamonds, including WD Lab Grown Diamonds and Pure Grown Diamonds, have ended their legal battle over patented processes.

Lab-grown diamond companies settle patent dispute

WD Lab Grown Diamonds and the Carnegie Institute of Washington have settled their legal battle with Pure Grown Diamonds and IIa Technologies over lab-grown diamond patents. 

WD and Carnegie’s legal challenge centred on the alleged breach of two patents the companies have licenced since 2011. The first covers the microwave-plasma chemical vapor deposition (CVD) diamond-growing process, and the second relates to the high-pressure, high-temperature (HPHT) process – also called annealing – that improves a lab-grown diamond’s colour and clarity.

“Pure Grown Diamonds and IIa Technologies had previously attempted to have the case dismissed on the grounds that diamond growth is a natural phenomenon and therefore cannot be patented”

In a joint motion filed to the US District Court for the Southern District of New York, lawyers for both parties announced they had settled their case with no stipulated conditions.

Pure Grown Diamonds and IIa Technologies had previously attempted to have the case dismissed on the grounds that diamond growth is a natural phenomenon and therefore cannot be patented. The companies also argued that since their manufacturing process is not public, there was insufficient evidence of infringement.

Their claims were dismissed in March and the case was allowed to proceed.

However, the resolution does not mark the end of WD and Carnegie’s legal battles. Jewellery industry publication JCK Online reports the companies still have ongoing patent disputes with Fenix Diamonds, whose lab-grown stones are manufactured by Nouveau Diamonds in India.

Fenix, which supplies lab-grown diamonds to Michael Hill International, has denied any wrongdoing, but its counterclaims to cancel Carnegie’s patents were dismissed by US District Court Judge Jed Rakoff in August.

The case is one of several other patent battles are currently being waged between lab-grown diamond producers. In February, a Singapore court ruled IIa had infringed on a patent owned by Element Six, a subsidiary of De Beers. The court also cancelled one of Element Six’s patents as part of the case.

Meanwhile, in March, WD and Carnegie reached a settlement with ALTR Created Diamonds,following legal action launched in January. Immediately following the ruling, WD signed a patent sublicense agreement with ALTR.

 

More Reading:
Lab-grown diamond companies in conflict over patents
The Great Diamond Debate: Round II
Michael Hill’s lab-grown diamond marketing may mislead consumers
 











Halo Sleepers - Oro Bello
advertisement





Read current issue

login to my account
Username: Password:
Athan Wholesale Jewellers
advertisement
Jeweller Magazine
advertisement
SAMS Group Australia
advertisement
© 2024 Befindan Media