A deeper Dive into the different Machines

Though both CVD and HPHT diamonds boast the same brilliance and durability as their natural counterparts, subtle variations exist:
Chemical Vapour Deposition (CVD): Typically takes around a month for a 1-carat diamond.
High-Pressure High-Temperature (HPHT): Usually takes 2-3 weeks for a 1-carat diamond.
The difference in the results between the two techniques are small, but important.
HPHT: Often shines with exceptional color grades (D-F, nearly colorless), making it ideal for those seeking pristine white diamonds.
CVD: While still achieving high color grades, it might have a slight tendency towards faint brownish or grayish hues.
CVD: Frequently boasts exceptional clarity grades (FL, VVS1) due to fewer internal inclusions, resulting in flawless beauty.
HPHT: May contain more minor inclusions due to the intense pressure involved, though these are often microscopic and invisible to the naked eye.
Growth Pattern:
HPHT: Forms diamonds resembling a cub-octahedron, a unique 14-sided shape.
CVD: Typically grows cube-like diamonds, offering a distinct geometric charm.
CVD: Currently, it might be slightly more expensive for comparable quality due to its newer technology and potential for exceptional clarity.
HPHT: Generally more cost-effective for smaller diamonds and certain color ranges, making it a budget-conscious choice.
Environmental Impact:
CVD: Considered more environmentally friendly due to lower energy consumption and a smaller carbon footprint compared to HPHT’s demanding pressure and temperature requirements.
Choosing Your Diamond:
The perfect lab-grown diamond awaits! When making your choice, consider:
Color preference: If a diamond white as snow is your dream, HPHT could be a touch better.
Clarity preference: For an internally flawless gem, CVD might be your champion.
Budget: HPHT shines for smaller diamonds or specific color grades, while CVD offers exceptional clarity at a premium.
Environmental consciousness: For a greener choice, CVD stands out.

Contact us

We're not around right now. But you can send us an email and we'll get back to you, asap.

Questions, issues or concerns? I'd love to help you!

Click ENTER to chat