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Loose Round Cut Lab Diamonds

Explore Premium Lab Grown Diamonds

Discover the unmatched quality and affordability of Ritani's lab grown diamonds. Our collection features a wide range of GIA and IGI-certified loose lab diamonds, ensuring the perfect fit for any budget. Embrace the future with our ethically sourced and sustainably produced diamonds, offering transparent and competitive pricing. Choose our lab diamonds for a conscious choice without compromise. Shop now and experience the exceptional beauty of lab grown diamonds.

We offer our customers the opportunity to view and try on their lab diamond engagement rings before buying, to ensure the diamond ring matches their precise specifications. To ensure that your lab engagement ring is truly what you want, schedule a free, no-obligation, in-person preview of your engagement ring with a Ritani Specialist in your area. Please note that in-person previews apply to orders that are $1,500 and up.  

Ritani Preview Showroom where you would view your lab diamonds.
Unique Engagement Rings

Why Buying Lab Diamonds at Ritani Makes Sense

We are committed to simplifying the lab diamond shopping and delivering complete transparency in all aspects of the buying process. Browse our incredible selection of certified loose, earth-grown diamonds, conveniently accessible online for delivery or pick-up at designated locations.

Best Selling Settings

Lab-grown diamonds are real diamonds that have the same chemical, physical, and optical properties as earth-grown diamonds. Learn why lab-grown diamonds are the most cost-effective choice.



Loose Lab Diamond held by diamond tweezers being analyzed by a gemologist.

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Lab Diamond FAQ
Unlock the World of Lab-Grown Diamonds with Our Comprehensive FAQ Section! Get answers to your most pressing questions about lab-grown diamonds in our expertly crafted FAQ guide. Delve into the science behind these sustainable gems, their quality, and affordability. Whether you're a curious shopper or a conscious consumer, our curated collection of FAQs covers it all. From the growth process to comparisons with natural diamonds and ethical considerations, we provide the insights you need. Learn how to choose the perfect lab-grown diamond, understand its environmental benefits, and make an informed purchase decision. Explore the brilliance of lab-grown diamonds and their place in the modern jewelry industry!
Yes.

​They are completely real. Lab-grown diamonds are chemically, physically, and optically identical to earth-grown diamonds and therefore will test exactly as earth-grown diamonds do with a diamond detector. We test each of our lab-grown diamonds with a diamond tester before shipping it to our customers. Each of our lab-grown diamonds comes with a grading certificate from a respected third-party agency (excluding preset lab diamond jewelry.) 

It's complicated.

It’s commonly thought that lab-grown diamonds are more flawless than earth-grown diamonds, however, that is not necessarily true. Lab-grown diamonds can still have minor inclusions, just like their earth-grown counterparts. Choosing between the two simply boils down to personal preference. Many gravitate towards lab-grown diamonds due to their affordability, since they offer the equivalent beauty and quality of earth-grown diamonds and cost up to 30% less. Some, however, prefer earth-grown diamonds for their rarity and unique nature.  Learn More 

No.

​Not at all. Lab-grown diamonds are 100% carbon, and have a hardness of 10 on the Mohs scale, just like earth-grown diamonds. Moissanite, which is not a real diamond, is made of silicon carbide with a hardness of 9.25 on the Mohs scale.

Yes.

Lab-grown diamonds are often more affordable than their natural counterparts. This cost difference is primarily due to the manufacturing process. Lab-grown diamonds are created in controlled environments, using advanced technology, which reduces the expenses associated with mining and the uncertainty of finding rare gem-quality diamonds. Additionally, there are no ethical concerns or environmental impacts associated with lab-grown diamonds.

However, it's important to note that the price difference can vary depending on factors like size, quality, and market demand. While lab-grown diamonds offer cost savings, the exact price comparison can differ from one diamond to another. Ultimately, the choice between lab-grown and natural diamonds depends on your budget, preferences, and ethical considerations.

Two ways.

Lab-grown diamonds are created using a process called chemical vapor deposition (CVD) or high-pressure high-temperature (HPHT). In CVD, a diamond seed is exposed to carbon-rich gas, allowing it to grow atom by atom. HPHT involves subjecting a carbon source to high pressure and temperature to form a diamond. Both methods replicate natural diamond formation. Learn More.

Yes!

Yes, lab-grown diamonds can be GIA (Gemological Institute of America) certified. GIA offers grading services for both natural and lab-grown diamonds, assessing their quality based on the same standards. A GIA certificate for a lab-grown diamond provides valuable information about its characteristics, ensuring transparency and credibility in the market. Shop GIA Certified Lab Diamonds Now.

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