Have you ever looked at a gemstone and wondered if it’s natural or lab-grown? With the rise of lab-created gems in today’s jewellery market, it’s a smart question to ask. Lab-grown gemstones are gaining popularity for their beauty, affordability, and ethical sourcing—but it’s not always easy to tell them apart from their natural counterparts.
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Lab-grown gemstones share the same physical and chemical properties as natural stones. That means they look and feel the same, and they’re just as stunning. The difference lies in how they’re made. Natural gemstones form deep within the Earth over millions of years, while lab-grown ones are created in controlled environments over weeks or months.
So how can you tell the difference between the two? Let’s explore the key features that may help identify lab-grown gemstones and how to get the right information when shopping.
What Are Lab-Grown Gemstones?
Lab-grown gemstones, also known as synthetic or man-made gemstones, are created using advanced technology that mimics natural formation. These stones have the same crystal structure, hardness, and optical brilliance as natural ones. They’re not fake or imitation—they’re real gemstones, just made above ground.
Common lab-grown stones include diamonds, rubies, sapphires, emeralds, and Moissanite. Because of their high quality and lower environmental impact, many people now choose lab-grown diamonds as an alternative to mined gems.
Why It’s Hard to Tell Them Apart
One reason lab-grown gemstones are so popular is that they’re virtually identical to natural stones. To the naked eye, and even under basic magnification, they look the same. Both types have the same sparkle, color range, and overall appeal.
You usually can’t tell the difference just by looking at the gemstone in a ring or necklace. That’s why it’s important to ask the right questions, check certifications, and understand the small differences that experts look for.
Clues That a Gemstone Might Be Lab-Grown
While it’s not always possible to know for sure without testing, there are a few signs that might suggest a gemstone is lab-grown.
1. Clarity and Perfection
Lab-grown gemstones are often made in ideal conditions, which means they can have fewer inclusions or internal flaws. Natural gemstones usually form with small imperfections due to pressure, temperature changes, and other elements in the Earth.
So, if a gemstone appears nearly flawless, it might be lab-grown. That said, natural stones can also be very clear, and some lab-grown gems are made to mimic natural flaws. This is just one possible clue.
2. Price and Sourcing
Lab-grown stones are usually more affordable than natural ones of the same size and quality. If a gemstone looks too perfect for the price, it might be a lab-created version. Reputable jewellers ike Evry Jewels will often label their pieces clearly, but it’s always a good idea to ask directly.
Also, if the jeweller or retailer promotes ethical or eco-friendly sourcing, there’s a good chance lab-grown options are part of their collection.
3. Uniform Color
Lab-grown gemstones often have even, consistent color throughout. Natural stones can show slight variations in shade due to how they formed. This is especially noticeable in rubies, sapphires, and emeralds. If the color is incredibly consistent, it could be a hint that the gem was made in a lab.
4. Laser Inscriptions (For Diamonds)
Lab-grown diamonds are sometimes laser-inscribed on the girdle with a microscopic marking. This can only be seen under magnification, but it’s one of the most reliable indicators. The inscription usually includes a lab reference or certification number, which can be traced to the original report.
Natural diamonds may also be inscribed, but lab-grown stones often include a clear indicator of their origin.
How Gemstone Testing Works
If you’re truly curious about whether a gemstone is lab-grown, a gemological lab or professional jeweller can help. Using tools like microscopes, spectrometers, and UV lights, they can spot differences that the human eye cannot.
Certifications and Why They Matter
One of the best ways to know what you’re buying is by asking for a gemstone certificate. Trusted labs like GIA, IGI, and GCAL offer detailed reports that confirm whether a gem is natural or lab-grown.
Shopping Tips for Lab-Grown vs Natural
Whether you’re shopping for a special occasion or adding to your jewellery collection, it’s helpful to keep a few things in mind when comparing gemstones.
Ask the Right Questions
Don’t be afraid to ask the jeweller whether a stone is natural or lab-grown. A transparent seller will provide honest answers and often have documentation to support their claims.
Check the Labels
Many online and in-store listings now mention if a gemstone is lab-created. Words like “synthetic,” “lab-grown,” or “created” are common indicators. If it’s not labeled, ask for clarification.
Know Your Priorities
Some people prefer natural stones for their rarity, while others love lab-grown gems for their ethical sourcing and cost-effectiveness. There’s no right or wrong—it all comes down to personal preference.
Wrapping It Up
Telling whether a gemstone is lab-grown isn’t always easy at first glance. Both types of stones are beautiful, durable, and real in every sense. But if you want to know for sure, the best approach is to ask questions, request certificates, and look for subtle clues like clarity, color, and pricing.
Whether you choose a lab-grown gem or a natural one, what matters most is that you love the piece and feel confident in your purchase. With a little extra knowledge and attention, you’ll be able to choose jewellery that fits your style and values—while enjoying every sparkle along the way.