FAQ: What is a Lab Grown Diamond?


Lab grown diamonds are becoming increasingly popular for engagement rings. Ritani has just added lab grown diamonds to our inventory – but what exactly is a lab grown diamond? 

Lab grown diamonds are also called lab created diamonds, synthetic diamonds, cultured diamonds, or cultivated diamonds. Lab grown diamonds are not the same as diamond simulants (cubic zirconia and moissanite). Lab grown diamonds are REAL diamonds – they are chemically, optically, and physically identical to natural (earth grown) diamonds. They will even test as a real diamond using a diamond testing device. 

Can you tell which diamond is an earth grown diamond and which diamond is a lab grown diamond? 

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You probably can’t, and jewelers can’t either. (By the way, the lab grown diamond was the one to the left). There are some existing techniques to differentiate lab grown diamonds from earth grown diamonds, but these tests would need to be done in a lab as they require advanced technology.

How are lab grown diamonds made?

In the earth, diamonds are created in the earth’s mantle through extremely high heat and pressure. Diamonds are created in a lab by simulating these conditions.

There are two different processes that can be used to create diamonds in a lab: High Pressure-High Temperature (HPHT) and Chemical Vapor Deposition (CVD). Both of these processes will create a beautiful diamond. For these processes, a diamond seed (a very tiny diamond) is taken and placed in a chamber where it undergoes extreme heat and pressure. Sometimes grading agencies like the IGI or GCAL will specify in your diamond grading report which method was used to create your lab diamond. Lab grown diamonds can take 1-12 weeks to grow depending on the size of the diamond.

Should I get a lab grown diamond?

Lab grown diamonds are appealing for many reasons. They can be up to 30% less expensive than earth grown diamonds because of their shorter supply chain. They are also eco friendly, as they are grown in a lab and require no mining. Lab grown diamonds are also an ethical choice because they are created in a monitored laboratory environment.

If you are considering purchasing a lab grown diamond engagement ring for your partner, you may want to discuss it with them first. Some people dislike the idea of a diamond that was grown artificially and may rather have a diamond produced by nature.

Where to buy lab grown diamonds

Shopping for a lab grown diamond online will give you a larger selection of diamonds to choose from. Buying diamonds online rather than from a brick and mortar store will save you hundreds of dollars in the long run. Make sure your potential diamond comes from a reputable certifying agency.

Will lab grown diamonds hold value?

Because lab grown diamonds are relatively new to the market, there is no way of truly knowing whether or not they will hold any value because of potential market changes. Should you have any concerns, it doesn’t hurt to have our diamond re-appraised. Our recommendation is that you treat an engagement ring as a gift of love and commitment to your partner rather than an investment.

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