Expertise you can trust: Beckett Noir is known for its premium jewelry designs and seamless, innovative shopping experience. This Beckett Noir diamond guide explains the difference between lab-grown and natural diamonds—how they are chemically, physically, and optically identical—yet differ in origin, rarity, and value. All Beckett Noir n guides are meticulously researched and reviewed by our certified gemologists, content, editorial, and brand teams before publication to ensure industry-leading excellence and accuracy.
What Is a Lab Grown Diamond?
Lab grown diamonds are real diamonds produced in a controlled laboratory setting. Chemically, physically, and optically, lab diamonds are identical to natural diamonds, with the same hardness, brilliance, and fire. Unlike natural diamonds that form over billions of years deep within the Earth’s mantle, lab diamonds can be created in just weeks to months.
Types of Lab Grown Diamonds
Lab grown diamonds start as tiny carbon seeds from pre-existing diamonds. There are two primary techniques used to create lab diamonds: High Pressure High Temperature (HPHT) and Chemical Vapor Deposition (CVD).
- HPHT Lab Grown Diamonds: This method mimics the natural conditions under which diamonds form inside the Earth. A diamond seed is placed in a chamber and subjected to intense heat (over 2,000 degrees Celsius) and pressure (1.5 million pounds per square inch). The carbon atoms in the chamber bond with the seed, crystallizing into a diamond.
- CVD Lab Grown Diamonds: This method starts with a thin piece of diamond seed being placed in a vacuum chamber filled with a carbon-rich gas mixture (typically methane and hydrogen) that’s heated to break down the gas molecules. Carbon atoms settle onto the seed, building layer by layer until the diamond reaches its desired size. Some CVD diamonds undergo additional pressure and heat treatment after growth.
Both methods simulate part of the natural diamond-forming process, resulting in high-quality diamonds that are identical to mined diamonds in every way. After several days, a rough diamond is created, then cut, polished, and set in jewelry. Both methods yield real diamonds with no differences in durability or quality, differing only in growth patterns and production time.
With the naked eye, it’s impossible to differentiate between natural diamonds, HPHT lab diamonds, and CVD lab diamonds; only experts can identify subtle markers related to growth patterns.
Are Lab Grown Diamonds Real?
Yes, lab grown diamonds are as real as natural diamonds are. There are many misconceptions about lab diamonds, a few of the most common being:
- Lab diamonds are "fake" diamonds: This is untrue. Lab diamonds are chemically, physically, and optically identical to natural diamonds.
- Lab diamonds look different from natural diamonds: This is untrue. With the naked eye, even experts cannot distinguish lab from natural diamonds without specialized equipment.
- Lab diamonds aren’t as durable: This is untrue. Lab diamonds have the same hardness (10 on the Mohs scale) as natural diamonds.
- Lab diamonds are flawless: This is untrue. Like natural diamonds, lab diamonds can contain inclusions.
The only real difference between lab and natural diamonds is their origin: lab diamonds are grown in laboratory settings, while natural diamonds form deep within the Earth. Otherwise, lab diamonds are identical to natural diamonds and 100% real.
Lab Grown Diamond vs. Natural
Here’s how a lab grown diamond and a natural diamond compare:
| Lab Diamond | Natural Diamond | |
|---|---|---|
| Durability | 10 on the Mohs scale | 10 on the Mohs scale |
| Brilliance | Refractive index ranges from 2.417 to 2.419 | Refractive index ranges from 2.417 to 2.419 |
| Color | Primarily colorless, but can also occur in many color options that are often more vivid than natural options | Primarily colorless, but can also occur in many color options including pink, blue, and yellow |
| Grading | Graded on cut, color, clarity, and carat | Graded on cut, color, clarity, and carat |
| Certification | Certified by reputable gemological institutions | Certified by reputable gemological institutions |
| Origin | Grown in controlled laboratories over several days to weeks, then cut and polished | Formed deep in Earth over billions of years, mined, cut, and polished |
| Rarity | Can be produced in increasing quantities as technology advances | Limited quantities based on geological conditions |
| Price | Lower cost due to availability | Higher cost due to mining and rarity |
Can You Tell the Difference Between Lab Grown and Natural Diamonds?
To the naked eye, lab grown and natural diamonds are indistinguishable. Only gemologists can detect the following minor differences using specialized, high magnification equipment:
- Internal Growth Patterns: lab diamonds may exhibit growth patterns that slightly differ from the octahedral growth pattern in natural diamonds.
- Inclusions: Natural diamonds often contain inclusions from natural minerals, while lab diamonds may contain metallic inclusions or other markers related to the HPHT or CVD growth process.
- Laser Inscription: Most lab diamonds are inscribed on the girdle with a microscopic mark indicating their lab origin.
Do you think you can tell the difference between lab grown and natural diamonds just by looking? Test your eye with these six side-by-side diamond images and see how well you do.
Could you tell that the center diamond in the top row and the left diamond in the bottom row are natural diamonds? The other four diamonds are lab grown. Most people find it nearly impossible to distinguish between lab grown and natural diamonds with just their eyes. This similarity is part of what makes both options so appealing.
Benefits of Lab Grown Diamonds
Lab grown diamonds are a compelling option for those looking to purchase fine jewelry — these benefits explain why.
- Support for Sustainable Practices: Lab diamonds are a responsible choice as they are grown with precise technology that doesn't involve mining. Their production typically has a smaller carbon footprint and less environmental disruption, making them a responsible choice for conscious consumers.
- Identical to Natural Diamonds: Lab diamonds are chemically, physically, and optically identical to mined diamonds.
- Available in Various Colors: Lab diamonds are easily created in unique and vibrant hues like pink, yellow, and blue. These stunning color options are more affordable than their natural counterparts, giving buyers more creative freedom to select a diamond that matches their personal style.
- Value: Lab diamonds are generally more affordable than mined diamonds of the same size and quality. This means you can invest in a larger or higher-quality diamond at the same budget, making it an attractive choice for those seeking luxury at a more accessible price point.
Lab Grown Diamond FAQ
Q: How do companies create lab grown diamonds?
Two methods can produce jewelry-quality diamonds: HPHT and CVD.
HPHT is an abbreviation for High Pressure/High Temperature. This method replicates the natural formation of diamonds by subjecting carbon to high temperatures and pressing it together.
CVD is an abbreviation for Chemical Vapor Deposition. A seed crystal chamber is filled with a mixture of hydrogen and methane gas. Microwave power often heats the chamber to a high temperature, which excites the gas. The diamond grows on the seed crystal.
Q: What is a lab grown diamond certificate?
Certified gemological institutes grade lab grown diamonds using the same 4 Cs that are used to grade naturally mined diamonds. It means that the properties of each diamond, such as its color grade, carat weight, clarity grade, and cut grade, are validated by a diamond certificate like the mineral one.
The most well-known grading laboratories that give this type of certificate are the Gemological Institute of America (GIA), and the International Gemological Institute (IGI). You can make an informed decision and compare similarly graded diamonds by having a certificate like these.
Q: What is the main difference between lab grown diamonds and natural diamonds?
The main difference is how each one is made. The mined diamond is formed by a natural process dependent on extremely long, natural factors. On the other hand, the laboratory diamond is a more efficient approach to producing diamonds with the same appearance and physical, chemical, optical, and atomic properties.
Furthermore, there are many difficulties in extracting mineral diamonds, while those made in laboratories are much conflict-free and ethically sourced.
Q: What is the main difference between lab grown diamonds vs natural diamonds?
The main difference is how each one is made. The mineral diamond is formed by a natural process dependent on extremely long natural factors. On the other hand, the laboratory diamond is a more efficient approach to producing diamonds with the same appearance and physical, chemical, optical, and atomic properties.
Furthermore, there are many difficulties in extracting mineral diamonds, while those made in laboratories are much more ethical and budget-friendly.
Q: Are lab grown diamonds worth it?
Yes, man-created diamonds are totally worth it! They can cost around 50% less than earth diamonds and are structurally identical, so you’re investing less for more – which is perfect.
Q: What is the future of lab grown diamonds?
The fact that they are more affordable than minerals and more ethical, because they do not require an extraction process and do not degrade nature, demonstrates that the industry and the presence of these beautiful and modern diamonds will only grow exponentially in the future.