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An Unbiased Look at Lab-Grown and Natural Diamonds

  • May 23, 2025
  • 4 min read


What to choose, lab-grown or natural diamond?


People wonder about this question all the time when wanting to purchase a diamond. You find a lot online, and since the prices are all over the place, it does get confusing. One side is selling you a shiny lab-grown diamond at a fair price, and the other side is saying natural diamonds are better.

So, how do you decide?


For example, you’re in search of a fierce, 6 Rare Carat radiant cut diamond ring like this one or a quieter and classic 2.5-carat radiant cut diamond like this one. After all, you want to be sure you’re investing in the right thing. But, at the same time, you don’t want to drive readers crazy by using a digressive or overly techy termonomastication.


So here’s the plain and simple on what exactly lab-grown diamonds and natural diamonds are, in language that’s easy to understand and helps you decide what works best for you.


About Rare Carat — Trusted Diamond Shopping, Made Simple

Rare Carat is America’s #1 source of unbiased advice for diamond engagement rings. It compares over a million natural and lab-grown diamonds from trusted sellers and shows them to you in one place. This saves a lot of time and helps you spot better deals.


What makes Rare Carat useful is the way it offers AI-based price and quality checks, so you’re not overpaying. You also get free gemologist checks on GIA-certified diamonds, so you’re not just guessing you're getting proper advice. And for people who are new to diamonds, Rare Carat offers a 4 Cs Buying Guide that explains everything clearly.

So if you're searching for something like a 6-carat radiant cut diamond ring or comparing prices and quality for a 2.5-carat radiant cut diamond, Rare Carat gives you real help without pushing any one option.


Lab-Grown vs. Natural Diamonds — What's the Difference?

A Rare Carat natural diamond is made inside the earth over millions of years. A lab-grown diamond is made by machines in a lab, but using the same type of process. They both look the same and even have the same physical and chemical features. Even expert gem labs grade both in the same way.


So if you're asking how much a 3-carat radiant cut diamond is, you’ll see that lab ones are priced much lower than natural ones. That’s one big reason why more people today are buying lab diamonds: they get the same size and beauty at a lower price.


Are lab-grown diamonds real?

Yes, 100%. And lab-grown diamonds are diamonds. They’re just as shiny, just as strong, and even just as chemically identical to natural ones.


And established gem labs such as GIA certify lab diamonds just as they do natural diamonds. So if someone’s telling you that lab-grown stones are fake or not real, that’s simply not true.


Shoppers often find themselves weighing the cost of radiant cut diamonds vs princess cut diamonds, when wondering how much a 3-carat radiant cut diamond costs, and then realizing how much lab options can save them without sacrificing on the appearance.


What are the things I should check before buying?

Whichever type you select, bear in mind the 4 Cs: cut, colour, clarity, and carat weight. These four things tell you the quality of the diamond and allow you to compare one stone to another.


When you're shopping online, especially for bigger stones like a 6-carat radiant cut diamond ring, it’s good to choose platforms where certified gemologists check diamonds and the pricing is done with proper AI quality scores. This way you’ll know you're not overpaying.


For people interested in something smaller and elegant, a 2.5-carat radiant-cut diamond is also a perfect size for engagement rings. It looks impressive, but it is still comfortable for everyday wear.


Why are more people buying lab-grown diamonds now?

There are a few simple reasons:

  • Better prices: You can buy a much bigger and cleaner lab-grown diamond for the same price as a smaller natural one.

  • Same beauty: They shine the same way and come with certification, so you're not missing anything in quality.

  • Peace of mind: Some buyers prefer lab diamonds because they know exactly where and how the diamond was created.


What if I want a natural diamond?

That’s fine too. Many people still prefer natural diamonds because of the emotional value or the idea that it’s something formed in nature over millions of years. It’s all about what feels right for you.


If you’re looking at rare pieces like a 6-carat radiant cut diamond ring in natural form, it’s good to know that prices will be higher, and that's normal. 


What helps is using trusted online tools where you can compare diamonds by carat, clarity, cut, and price all in one place and even get expert help to check the reports.


So, which one is better?

Honestly, both are good in their way. It depends on what matters more to you: budget, origin, look, or emotional value. The best part today is that buyers have full freedom to choose what they want, and there’s proper support available online to guide them without pushing any one option.


What’s the smart way to shop?

  • Begin with the budget: Consider how much you can afford or how much you want to spend.

  • Pick the size and shape: Such as round, emerald, cushion or radiant.

  • Use online filters: Filter out diamonds that fall under your criteria.

  • Compare certifications: Opt for stones certified by reputable labs.

  • Read the reviews: Not surprisingly, it’s helpful to find out how other people felt about the thing they bought.

Many people start with a question like How much is a 3-carat radiant cut diamond, and by comparing lab and natural, they end up making a smarter decision that they’re happy with.


If you're someone looking for an impressive piece like a 6-carat, radiant-cut diamond ring, it’s good to explore both options calmly. A few clicks can show you multiple diamonds, their quality score, their prices, and even expert notes, so you can decide what feels right.


Even for people planning to gift a 2.5-carat radiant-cut diamond, it’s nice to know you don’t have to settle. You can find a stone that matches both your feelings and your budget.


Final Thought

Lab-grown and natural diamonds both have their value. One is formed by nature, the other by modern science. What matters is how it makes you feel when you wear it or give it. With the help of clear tools, expert checks, and real reviews, choosing a diamond has become simple, honest, and open.

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