FAQ | Memory Diamonds


Are man-made, synthetic, or lab grown diamonds real?

Yes. Laboratory-grown diamonds are not fake diamonds. Man-made diamonds are 100% carbon and have the exact same chemical and optical properties as mined diamonds. No jeweler can tell the difference between a natural and synthetic diamond, as lab created diamonds are grown by recreating the conditions underneath the Earth that result in diamond growth: pressure, heat, & carbon. Learn more about why lab diamonds are not fake.

Lab grown diamonds are not the same thing as diamond simulants such as cubic zirconia, moissanite, or a CZ with a diamond like carbon (DLC) coating. Learn more about lab diamonds vs diamond simulants.

Is a cubic zirconia (CZ) the same thing as a lab grown diamond?

No. Diamonds are made entirely from carbon, whereas cubic zirconia contains no carbon! CZs are much weaker than diamonds and have different light performance and patterning. Any jeweler can easily tell the difference between a diamond and an inferior diamond simulant such as CZ or moissanite.

Is a synthetic diamond the same thing as a lab grown diamond?

Yes. Laboratory grown diamonds can be referred to as lab created diamonds, grown diamonds, synthetic diamonds, man-made diamonds, cultivated diamonds, or cultured diamonds. That being said, Memory Diamonds believes that synthetic is a scientifically inaccurate term for laboratory grown diamonds. 

Can a jeweler tell that a diamond is lab grown? 

No. Lab diamonds and natural diamonds of the same quality look identical, even to a trained eye. Traditional jewelers' tools such as microscopes or loupes cannot detect the difference between a laboratory grown diamond and a natural, mined diamond.

The low-cost diamond testing tools used by many jewelers are designed to test between fake diamonds (CZ, moissanite) and diamonds. These cheap tools are rudimentary and are not able to accurately differentiate between mined and grown diamonds.

The gemological equipment needed to reliably determine if a diamond is mined or grown is quite complicated and costs over $10,000. The most accurate detection method, Photoluminescence Spectroscopy, requires deep freezing the diamonds to −320°F (−196°C)! Most jewelers do not own such equipment due to the high cost and complexity.

Learn more about the differences between lab diamonds and mined diamonds.

How do you grow a lab diamond?

By recreating the conditions underneath the Earth that result in diamond growth: pressure, heat, & carbon. 

Today, there are two methods of growing diamond gemstones: High Pressure-High Temperature (HPHT) & Chemical Vapor Deposition (CVD). Each process is best suited for certain sizes & colors of diamonds. Learn more about growing diamonds.

How long does it take to grow a diamond?

It takes 7-10 days to grow a 1 carat lab diamond, and about a month to grow a 3 carat diamond.

If you try to grow a diamond any faster, the diamond crystal will fracture. Thus, there is a physical limit to how fast you can grow diamonds. 

Are all lab diamonds flawless and perfect? 

No. Diamonds are grown by recreating the conditions of nature, lab grown diamonds have the same variations of color and clarity that exist in natural diamonds (the 4 C's).

While the average laboratory-grown diamond is better quality than the average mined diamond, lab diamonds still range across the color and clarity spectrum, just like mined diamonds. Memory Diamonds chooses to only work with diamonds that are H+ better in color and SI1+ better in clarity. Learn more about color and clarity of lab grown diamonds.

Are lab diamonds cheaper than mined diamonds?

 Six Prong Solitaire Lab Created Diamond Engagement Ring in Rose Gold

Yes. Lab created diamonds tend to retail at a 30-40% discount off of equivalent quality natural diamonds. Lab grown diamonds are priced based on their quality, just like mined diamonds.

We often get asked "how much is a 1 carat lab diamond?" and the answer is, it depends on the quality, just like mined diamonds. 

Fancy-colored lab diamonds are significantly less expensive than fancy colored natural diamonds.  While a natural blue or pink diamonds can sell for millions of dollars per carat at auction, lab grown yellow, blue, pink, red, green, and black diamonds are only a small premium over the price of colorless lab diamonds.

Are lab diamonds graded by third party organizations like IGI & GIA? 

Yes. Nearly all of lab diamonds above 0.50ct are graded and certified by reputable non-profit gemological laboratories such as IGI, GCAL, EGL, or GIA.

Can I get my lab diamond appraised and insured? 

Yes. Laboratory grown diamonds are easily appraised and insured, just like mined diamonds. 

Can I sell a lab grown diamond?

 Lifted Open Cathedral Solitaire Lab Created Diamond Engagement Ring

Yes. Just like mined diamonds, there is a re-sale market for laboratory grown diamonds. A purchaser of a lab created diamond can expect to resell their lab diamond at a similar price as what they would receive for a mined diamond.

Do lab diamonds change color over time?

No. Laboratory grown diamonds do not fade, discolor or cloud over time. Learn more about lab diamond stability

Does Memory Diamonds grow its own diamonds?

Yes! We have our own factory in Europe. Our factory and process is EXCLUSIVE to Memory Diamonds. That is why we can offer your product in a fraction of the time of any other factory in the world. Most labs take 6 to 9 MONTHS to grow your diamond. WIth Memory Diamonds we can grow your diamond in ONE MONTH or less! 

Where are lab diamonds grown?

Diamonds are grown all over the world in high-tech facilities staffed by scientists, engineers, and technicians. West to East, here are locations of significant diamond production:

  • United States
  • United Kingdom
  • Netherlands
  • Germany
  • Russia
  • Israel
  • India
  • China
  • Singapore

Memory Diamonds truly believes that it matters where your diamonds comes from and that the purchase of a lab diamond is an investment in the future. The cost to produce lab diamonds is much higher than the cost to mine them, as lab diamonds are produced in western nations where employees receive full benefits and clean, safe working conditions. Learn more about the production of lab diamonds.

Are lab diamonds eco-friendly and sustainable? 

Yes, it is sustainable to grow diamonds with abundantly available carbon and renewable energy. Growing diamonds is definitely energy intensive; however, the impact on the earth to grow diamonds is a fraction of the impact of diamond mining.

It requires approximately 750 kilowatt hours of electricity to grow a 1 carat diamond. That same amount of electricity could power the average US household for 25 days or allow you to drive a Tesla Model S approximately 2,000 miles.

Learn more about the energy consumption and environmental impact of lab diamonds vs mined diamonds and why diamond mining is becoming less sustainable every year.

Are you ready to join the future of fine jewelry? 

Memory Diamonds is standing by to help you build something beautiful.