FAQs

What are CVD diamonds, and are they synthetic?

CVD (Chemical Vapor Deposition) diamonds are real diamonds composed entirely of carbon, just like natural diamonds. Unlike synthetic or artificial gems, CVD diamonds are grown in a laboratory under controlled conditions rather than being mined.

How do CVD diamonds differ from natural diamonds?

CVD diamonds and natural diamonds are identical in optical, thermal, physical, and chemical properties. Both are made of pure carbon. However, CVD diamonds often have an edge as they are the purest Type IIa diamonds, free of any chemical impurities, a rarity even among natural diamonds.

What is Type IIa, and why is it significant?

Type IIa diamonds are classified by leading gemological institutes as the purest diamonds, containing no chemical impurities. Only 2% of natural diamonds meet this grade, while all of Ruvari’s CVD diamonds are Type IIa, ensuring exceptional quality and brilliance.

Are CVD diamonds the same as CZ (Cubic Zirconia)?

No, CVD diamonds are entirely different from Cubic Zirconia (CZ). While CVD diamonds are made of pure carbon and are genuine diamonds, CZ lacks carbon and is significantly softer, less durable, and lacks the brilliance of a real diamond.

How are CVD diamonds grown in a laboratory?

CVD diamonds are created by subjecting a natural diamond seed to high pressure and temperature in a controlled chamber. Carbon-containing gases are introduced, and these gases break down, depositing carbon layers on the seed to grow a diamond. This advanced and capital-intensive process results in the purest Type IIa diamonds.

What is the difference between CVD and HPHT diamonds?

• CVD Diamonds: Produced using a gas-based process, resulting in diamonds made entirely of carbon and free of impurities.
• HPHT Diamonds: Grown using molten metal as a catalyst, which introduces chemical impurities, making them less pure.

Why are CVD diamonds more affordable than natural diamonds?

CVD diamonds are created in laboratories, avoiding the high costs and environmental impact of mining. This makes them more affordable than natural diamonds without compromising quality or authenticity.

Can you tell the difference between CVD diamonds and natural diamonds?

No, the naked eye cannot differentiate between CVD and natural diamonds. In fact, CVD diamonds often exhibit superior luster. Only specialized equipment can distinguish between the two.

Do CVD diamonds retain their color and quality over time?

Yes, CVD diamonds are as durable and stable as natural diamonds. They do not change color over time and maintain their optical, physical, and thermal properties.

How long does it take to grow a CVD diamond?

The growth process typically takes 3–4 weeks but can extend up to 12 weeks depending on the size of the diamond being created.

Are CVD diamonds better for the environment?

Yes, CVD diamonds are an eco-friendly and ethical alternative to mined diamonds. They do not cause environmental damage or raise concerns about unethical mining practices.

Is CVD technology widely available?

No, the technology for producing CVD diamonds is highly capital-intensive and currently available to only a few specialized players worldwide.