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When Were Laboratory Grown Diamonds Invented?

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If you’re wondering how long laboratory grown diamonds have been around, you may be surprised by the answer. The first man-made diamonds were crafted using the High Pressure High Temperature (HPHT) technique, with production starting in December 1954. This method replicates the natural diamond formation process in a laboratory by nurturing a tiny diamond seed with carbon atoms under intense heat and pressure.

Who First Invented Laboratory Grown Diamonds?

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Scientists at General Electric in New York were the first people to successfully create laboratory grown diamonds for industrial use in 1954. By the early 2000s, laboratory diamond technology had advanced enough that clearer, gem quality diamonds could be made in labs. By 2010, diamonds were consistently being produced that were indistinguishable from mined varieties in every way but origin.
Laboratory Grown Diamonds Step-by-Step

IT STARTS WITH A SEED

The first step in crafting any laboratory grown diamond is to prepare the tiny diamond seed that will be transformed under lab conditions. 

Optimal conditions

Next, the seed is nurtured with carbon atoms under intense heat and pressure either in a HPHT press or a Chemical Vapour Deposition vacuum chamber. 

ATOMS Accumulate

Regardless of the method used, the diamond seed will start to attract carbon atoms as it grows over a period of days or weeks. 

FINISHING TOUCHES

Once grown, rough diamonds are cut and polished to create the desired size and shape, ready to be placed into fine jewellery settings. 

How Long Do Laboratory Grown Diamonds Take to Create?

The length of time it takes for a diamond to form will be determined by its size, but as a guide, a one-carat diamond usually grows in about two weeks using either of the two most commonly used formation processes: High Pressure High Temperature (HPHT) and Chemical Vapour Deposition (CVD). Larger stones may take up to three months to create.

Cut for Brilliance

Swarovski is renowned for its mastery of crystal cutting, and its expertise has been passed through generations of craftspeople since 1895 when founder Daniel Swarovski made the first electric crystal cutting machine. Today, the House only works with laboratory grown diamonds that are precision cut to guarantee the best light performance across all our Swarovski Created Diamonds collections.
Styling Swarovski Created Diamonds
From a tiny carbon seed to a spectacular piece of fine jewellery, Swarovski Created Diamonds lend themselves to both everyday elegance and special occasion looks. Intensely bright and masterfully cut, each laboratory grown diamond is placed in fine jewellery settings to create captivating designs that shine with everlasting radiance. Ready to dive deeper? Explore our Swarovski Created Diamonds buying guide to learn more.

Frequently asked questions

Laboratory Grown Diamonds

How are laboratory grown diamonds made?

Laboratory grown diamonds are crafted using scientific processes. The technology is as brilliant as the diamonds themselves and has evolved over time to be able to create jewellery quality diamonds. Each diamond forms in its own unique way.

How long does it take to make a laboratory grown diamond?

The two methods of making diamonds in a laboratory work at similar speeds. One is Chemical Vapour Deposition (CVD) and the other is High Pressure High Temperature (HPHT). The size of diamond being grown will determine the time it takes, but as a guide, a one-carat diamond grows in about two weeks. Larger stones may take up to three months to complete.

How long does it take a diamond to form naturally?

Natural diamonds take millions of years to form deep within the Earth’s mantle under extreme heat and pressure, conditions that are recreated scientifically in a laboratory to grow man-made diamonds in weeks.
Discover more about Laboratory Grown Diamonds

What are Swarovski Created Diamonds?

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Swarovski Created Diamonds

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A natural progression of our brand DNA, Swarovski Created Diamonds are laboratory grown diamonds, masterfully cut, intensely bright and identical to their mined counterparts in every way but how they originate. Formed layer by layer​ from a carbon seed, they serve as a flawless reflection of nature’s radiance.

The 4Cs Guide of Diamonds

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Quality Control

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Universally recognised, the 4Cs are a guiding light in the world of diamonds, helping to determine the quality and value of each stone - the 4Cs stand for colour, cut, carat and clarity. The laboratory grown diamonds in the Galaxy and Eternity collections are graded against these 4Cs by IGI, the International Gemological Institute.

Laboratory Grown Diamonds Buying Guide

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Find the perfect piece

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A natural progression of our brand DNA, Swarovski Created Diamonds jewellery are laboratory grown diamonds, masterfully cut, intensely bright, and identical to their mined counterparts in every way but how they originate. Formed layer by layer​ from a carbon seed, they serve as a flawless reflection of nature’s radiance.