LARGER SIZE LABORATORY GROWN DIAMONDS
In terms of Chemical Vapor Deposition (CVD) diamond growth, OneFine Lab Grown Diamonds is the leading player. Identical to their earth-mined counterparts in appearance, structure, and atomic composition. Consistently grown in our laboratory, our high-quality diamonds. They don't require post-growth treatment to enhance their color or appearance.
HTHP and CVD are two types of methods in lab-grown diamond technology. With our optimized CVD technology, producing larger-size and higher-quality diamonds becomes true. OneFine Materials CVD rough diamonds can reach 30 carats, and polished stones can be 10 carats plus.
SUSTAINABILITY
As a company founded on the core value of integrity, curiosity and creativity, we have always been committed to advancing CVD technology while protecting the environment.
Lab-grown diamonds have the same physical and chemical properties as natural diamonds. The critical distinction between them is that the former is grown in a lab without harming the environment.
Like many CVD diamond firms, green energy and carbon dioxide are used to grow diamonds to protect the environment. Since its founding, it has derived all its electricity from solar farms to ensure that its energy consumption is nearly 100% accounted for by green electricity. That's significantly reducing emissions and protecting the planet for future generations.
From the start, our objective has been to live in harmony with nature. Our approach will inspire others to devise ways of addressing the climate crisis, helping create a better way to live.
Introducing the 4C
OneFine is very concerned about the quality of our products.
01 CUT
OneFine diamonds are expertly cut to optimize their fire, sparkle and brilliance, and graded from Very Good to Ideal
02 COLOR
Our Type IIA diamonds are free of impurities, and always Near Colorless and Colorless on the grading scale, above F level.
03 CLARITY
Of the six standards of clarity grading, our diamonds are Very Slightly Included (VS) and Slightly Included (SI)
04 CARAT
OneFine's industry-leading diamonds are available in sizes ranging from 0.5 carats to 30+ carats
We obtain third-party certification from the most reliable authorities, the International Gemological Institute (IGI). They grade our diamonds by the 4Cs to guarantee the best quality diamonds and traceability.
Every 0.5ct or larger OneFine lab-grown diamond is presented with a certificate with its specific grade number laser inscribed on the girdle.
CVD diamond technology
OneFine has refined and optimized its growing procedures via research and development. We ensure that all our diamonds adhere to the strictest purity and quality requirements.
A fine Type IIA diamond seed, or a thin sliver of a diamond, is first placed inside a specialized vacuum chamber to begin our CVD development process. The plasma is subsequently heated, and carbon-rich gases are added. Pure carbon adheres to the seed and develops into a new, giant diamond atom by atom. After the rough diamond has reached its full potential and has passed our stringent quality inspection, our skilled artisans will plan, cut, and polish it to absolute perfection.
Crafted with Care and Integrity
LAB GROWN DIAMONDS
High-quality Round Brilliant and Fancy Shapes, across the full color spectrum and available from 0.5-6cts, and beyond
TAILORED TO YOUR NEEDS
We provide bespoke diamond growth, focusing on cut, color, clarity, and size by the requirements of our partners.
GROWN IN THE PRC
Under the supervision of our engineers, our diamonds are grown in a laboratory with clean energy.
IMPROVING TECH
To give our customers larger, purer lab-grown diamonds possible, OneFine is constantly improving CVD technology.
AS GROWN
Type IIA diamonds don't have any imperfections and don't need post-growth processing to improve their color or look.
CERTIFIED AND INSCRIBED
The leading gemological laboratories in the world independently certify, grade, and inscribe each OneFine diamond.