Jewelry Manufacturing Guide: Working with HPHT Lab-Grown Diamonds

Manufacturing jewelry with HPHT lab-grown diamonds requires specific knowledge and techniques. This guide covers everything jewelers need to know for optimal results.

Understanding HPHT Diamond Properties

HPHT diamonds have unique characteristics that affect manufacturing:

Higher density than CVD diamonds
Superior hardness and durability
Consistent internal structure
No post-growth treatment requirements

Setting Techniques

Prong Settings

HPHT diamonds work exceptionally well with traditional prong settings due to their:

Consistent dimensions
Resistance to chipping
Stable color under heat

Pavé and Micro-Pavé

For melee diamonds (0.7mm-4.0mm):

Use calibrated HPHT melee for uniform sizing
Benefit from superior color consistency
Reduce sorting time by 60%

Quality Control Protocols

Pre-Setting Inspection

Verify color consistency across parcels
Check for internal stress fractures
Confirm calibration tolerances

During Manufacturing

Monitor temperature exposure (HPHT is heat-stable)
Use appropriate pressure for setting
Test for light performance regularly

Cost Benefits

20-40% lower material costs
Reduced sorting labor
Fewer rejected stones
Higher customer satisfaction

Partner with Kunlun Growth

We provide technical support and calibrated inventory to ensure your manufacturing success.