Low to No “Pressure” with High “Temperature” - Could be processed for best
results in a Cubic Press or Furnace
but some growers do the
LPHT process it the actual CVD reactor Microwave Plasma.
LPHT Enhancements Use:
-
CVD Diamonds, are highly prone to internal strain, as they are grown layer-by-layer in
low-pressure
vacuum chambers without all-around containment, minor fluctuations, halts, or restarts alter the carbon
lattice, the LPHT process most common use is at the moment the Rough CVD Diamond is removed from the
reactor, some do it after laser coring the polycrystalline build up on the CVD Rough.
-
Annealing irradiated Natural or all Lab Created Diamonds, to Blue,
Pink,
Orange,
Purple,
Red &
Green.
Advantages:
-
None to Slight Fluorescence
-
Undetectable as no one is looking for the effect from these processes.