HPHT production is consolidating among fewer, larger growers than CVD

HPHT lab-grown production is concentrated among a smaller number of larger operations than CVD, reflecting the higher capital cost of HPHT presses relative to CVD reactors.

• HPHT presses are expensive, large pieces of equipment that favour operators able to run them at scale, which naturally limits the number of viable producers.
• CVD reactors are comparatively cheaper to add incrementally, which is part of why CVD production has spread across a larger number of smaller growers.
• This structural difference sits behind the narrowing HPHT-to-CVD price gap in a different way than pure production cost — fewer HPHT producers means less price competition pushing that method's prices down as fast.

The growth method matters less to a buyer than final cut and colour, but it's a useful piece of context when comparing quotes across suppliers. Contact us with questions on a specific stone's origin.