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Round Lab-Grown Diamond Engagement Rings

Round brilliant diamonds are the most traditional and easily recognizable of all the diamond shapes, securing their stop in the top 3 most popular diamond shapes for engagement rings each year. Fing your perfect round diamond engagement ring, now available in lab-grown!

round lab grown diamond solitaire ring round lab grown diamond solitaire ring

Meet with us in-store at our New York City showroom or shop with us remotely to see more Round Lab-Grown Diamond Engagement Rings.

Frequently Asked Questions

How many facets does a round brilliant lab-grown diamond have?

The anatomy of a round brilliant lab diamond is the same as that of its natural counterpart and will have 57 or 58 facets that contribute to how it reflects and refracts light. These facets then cause light to bounce from the bottom of the diamond back through the top, giving it an unbelievable brilliance.

How is a round lab-grown diamond created?

There are two methods to create lab diamonds: High Pressure High Temperature (HPHT) and Chemical Vapor Deposition (CVD).
HPHT was the first major method for creating lab-grown diamonds. It mimics the natural process of diamond formation in the span of a several weeks as opposed to several billion years. A diamond seed is placed into a special press with carbon. The area is until it reaches a temperature of around 1600 degrees Celsius, or about 2900 Fahrenheit. The chamber exerts pressure up to and over 870,000 pounds per square inch. Molten metal (typically from a source like graphite) in the chamber then dissolves the carbon source, and a diamond begins to form and build around the diamond seed.
In CVD, a diamond seed is placed into a sealed vacuum chamber. After the chamber fills with carbon-heavy gas, like methane, it’s heated to a high temperature of around 1500 degrees Fahrenheit. The high temperatures convert the gas into plasma, which releases pieces of carbon. Those carbon pieces build upon the diamond seed originally placed in the chamber. Eventually, a full diamond forms after layer and layer of carbon pieces attach to the seed. The whole process produces incredible, chemically-pure diamonds free of most impurities. They don’t contain metal inclusions, either.
You can read more about HPHT and CVD in our blog, An In-Depth Look at CVD vs. HPHT.

What’s the difference between lab-grown diamond engagement rings vs natural diamonds?

Natural diamonds form over millions of years under pressure from the Earth’s crust, and are mined, cut, and polished to produce the brilliant stones you find in jewelry. Lab-grown diamonds undergo the same process, only instead of millions of years, they form in a few weeks via a high temperature or a chemical vapor process. The difference between a natural and lab-grown diamond is indistinguishable to the naked eye. They have the same chemical and physical attributes, but specially trained gemologists may be able to use a magnifying tool to indicate growth patterns or the presence of elements that would help distinguish one from the other. However, the most trusted method is to use a testing machine. Both types can have inclusions, or tiny flaws, but have identical hardness.

Are lab-grown diamonds as durable as natural ones?

Natural and lab created diamonds have the exact same chemical composition. Because of this, lab diamonds are also just as durable as natural diamonds meaning they are the hardest, most durable gemstone on the Mohs scale.

Are lab-grown diamonds GIA-certified?

Not all lab-grown diamonds are GIA certified. However, all lab-grown diamonds at Lauren B are GIA certified! Browse our inventory of GIA Graded lab diamonds.

What setting is best for a round diamond ring?

Rounds are the most brilliant diamond shape. Additionally, they tend to look bigger than fancy shapes of the same carat weight because of their symmetry. Because of all this, we recommend keeping it simple with their setting and opting for a solitaire or pave setting.

The round brilliant diamond easily has the most sparkle and fire of ALL other shapes! The desirable aesthetic of round brilliants, along with the fact that it requires the most time and amount of rough diamond to produce, are a few reasons why round brilliants are also the most expensive of all diamond shapes. In addition, the faceting in round brilliants helps mask imperfections and increase the appearance of color! Whether you're looking for natural or lab-grown round diamonds, we've got you covered!
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