Buying diamond jewellery used to consist of only one big question: which natural diamond should you select? Today you have another option. Lab grown diamond jewellery provides the look, toughness and physical characteristics of a diamond, but uses an alternative approach to both manufacturing and pricing.
That alternative can prove confusing too. You may have questions about whether lab made stones are real diamonds, how they are graded, if certification is important, and what you should look for when spending your money.
The key thing to remember is that lab created diamonds are not imitation stones like cubic zirconia. They are formed in an environment that replicates the conditions in which a natural diamond will form. These can then be cut, polished, graded and put into rings, earrings, pendants or other forms of jewellery.
This guide looks at the practical difference that can matter when shopping, and focus on what to look out for in terms of quality, not marketing speak.
Table of Contents
Why Lab Grown Diamond Jewellery Is Different
The most obvious place to start is with origin.
Natural diamonds are formed long beneath the earth, and in conditions of extreme pressure. Lab made diamonds replicate this using a variety of methods that either apply high pressure and temperature, or utilise a different set of chemicals in order to form a true diamond crystal.
Two of the most common methods are:
HPHT, or High Pressure High Temperature
CVD, or Chemical Vapor Deposition
Both can produce real diamonds, and so lab made diamonds can be just as hard, bright and beautiful as naturally formed stones.
Having said that, origin rarely defines beauty. The cut of the stone, along with its shape, colour, clarity and overall craftsmanship are often far more important factors when buying jewellery.
How to Choose Lab Grown Diamond Jewellery
Start with the same quality factors you would consider when examining other diamonds.
Check the Cut First
A properly cut diamond reflects the maximum amount of light, whereas a poorly cut diamond will look dull, even if it has a high color and clarity grade.
Focus on the cut grade when buying a round diamond. When looking at fancy diamond shapes, such as oval, pear, emerald, or cushion, pay attention to their proportions and overall appearance.
Check out Color and Clarity
You don’t need to go for the top color grade.
A diamond with a lower color grade may not have any yellowish tint when set in a ring. Similarly, some minor imperfections that are not visible to the naked eye will not affect the beauty of your jewelry.
Lab Grown Diamond Jewellery and Certification
Independent grading documentation can make comparisons easier, especially when purchasing a valuable stone.
A grading report may include details such as:
- Carat weight
- Colour grade
- Clarity grade
- Measurements and proportions
- Polish and symmetry
- Growth method or treatment information
Do not treat a certificate as proof that one diamond will automatically look better than another. Use it as a verification tool and combine the information with photographs, videos, or an in-person inspection.
Think About the Setting, Not Just the Stone
The diamond is only part of the finished piece.
A secure setting, appropriate metal, comfortable proportions, and good craftsmanship can make a major difference to long-term wear. Thin claws, weak bands, or poor finishing can reduce the practical value of an otherwise attractive diamond.
For everyday jewellery, think about your lifestyle. A lower-profile setting may suit someone who works frequently with their hands, while a higher setting may appeal to someone who wants the diamond to appear more prominent.
Frequently Asked Questions
Are laboratory-grown diamonds real diamonds?
Yes. They have the same basic crystal structure and core physical properties as mined diamonds, although their origin is different.
Do lab made diamonds look different?
High-quality stones can look extremely similar to natural diamonds without specialized testing equipment. Visible appearance depends more heavily on cut, colour, clarity, and proportions.
Can laboratory-grown diamonds be used in engagement rings?
Yes. They can be set in engagement rings using many of the same designs and precious metals used for natural diamonds.
Should I always choose the highest clarity grade?
Not necessarily. An eye-clean diamond can provide an attractive appearance without requiring a very high clarity grade.
Does certification matter?
It can be valuable because it provides standardized information about the stone and makes comparison between different diamonds easier.
Making the Right Choice
When choosing lab grown diamond jewellery it is important to focus on the value and appeal based on looks, cost, design and source. Instead of basing your decision on one or two key factors it is important to compare the overall look.
Focus on the cut quality, the overall design and construction, certifications and how it looks to you. Remember that choosing an item based on these factors will provide you with better value than simply looking at the highest scores.
