Home Process Diamonds Sapphires & Rubies Ethics FAQs Contact
Technology (Pillar)

Differences between HPHT and CVD lab diamonds

By: Sakti Atelier Editorial Reading: 15 min Updated: Jun 24, 2026
Quick Answer

This is a comprehensive and authoritative reference guide about Differences between HPHT and CVD lab diamonds. We resolve all your questions and provide the highest gemological clarity about premium memorial jewelry at Sakti Atelier.

Sakti Atelier's Technology section is designed to bring light and clarity to individuals seeking to honor a unique and eternal bond. Discover the latest trends and answers in luxury memorial jewelry.

Our dedication leads us to pursue the highest standards of quality in each piece. We merge traditional high jewelry artisan techniques with modern technological processes to achieve flawless, high-fidelity pieces.

Two Paths to Create the Same Gem

There are two main technologies for synthesizing laboratory diamonds: HPHT (High Pressure High Temperature) and CVD (Chemical Vapor Deposition). While the CVD method uses ionized methane gases to deposit carbon onto a silicon base in a vacuum chamber, HPHT uses mechanical presses to press pure solid carbon under extreme temperatures.

Why We Choose HPHT for Memorial Diamonds

The HPHT process is the only one allowing us to physically and directly introduce the purified solid graphite from the ashes or hair into the crystallization crucible. This ensures a direct and unequivocal link of the organic material with the resulting diamond.

Key Takeaways

Comparison and Technical Specifications

Aspecto / AspectSakti AtelierJoyería Estándar / Standard Jewelry
Personalización / PersonalizationTotalmente artesanal / Fully bespokeProducción en serie / Mass produced
Trazabilidad / Traceability100% garantizada / 100% guaranteedInexistente / None
Significado / MeaningHomenaje emocional / Emotional tributeEstético / Aesthetic

Related Frequently Asked Questions

Yes, we work exclusively with 18k gold, sterling platinum, and certified lab gems.
You can contact our atelier to receive a personalized, no-obligation proposal.
Semantic Network and Related Resources

Create a memory designed to accompany you for a lifetime

Discover the process of custom design and mounting in 18k gold or sterling platinum in our atelier.

Talk to the Atelier