Lab-grown diamonds — chemically identical to mined stones, conflict-free by origin, and 60–80% less. IGI certification available. Handcrafted into custom engagement rings, wedding bands, and fine jewellery at our downtown Toronto studio.
Book an AppointmentLab-grown diamonds have the same fire, brilliance, and durability as mined diamonds — because they are diamonds. The only difference is where they were formed. At OROSERGIO, we set lab-grown diamonds into custom jewellery with the same craftsmanship and care as any natural stone.
Lab-grown diamonds are real diamonds produced in certified facilities using advanced technology that replicates the conditions under which natural diamonds form. They have the same crystal structure, hardness, and optical properties as mined diamonds — because they are the same material: pure crystallized carbon.
Two methods are used to grow diamonds. High Pressure High Temperature (HPHT) places a diamond seed in a carbon-rich environment under extreme pressure and heat — mimicking the Earth's mantle. Chemical Vapor Deposition (CVD) grows diamond crystal layer by layer from a carbon gas in a vacuum chamber. Both produce stones that are indistinguishable from mined diamonds.
At OROSERGIO, every lab-grown diamond is hand-selected by Sergio for cut quality, colour, and clarity before being set into your custom piece. Center diamonds of meaningful size come with independent IGI certification.
Considering a natural diamond instead? Learn about our natural diamonds
Lab-grown diamonds cost significantly less than comparable mined stones — allowing you to go bigger on carat size or invest in a more intricate setting.
No mining means no conflict sourcing, no environmental destruction, and no concerns about labour practices. Lab-grown diamonds are ethical by origin.
Center diamonds of meaningful size are independently graded by IGI — the same certification standard used for natural diamonds. Smaller accent stones are not individually certified.
Same fire, same brilliance, same durability. Lab-grown diamonds are optically and physically indistinguishable from mined diamonds.
Lab-grown diamonds work beautifully in any setting and any style. These are the most popular pieces our clients commission with lab-grown stones.
Solitaire, halo, three-stone, pavé, vintage — every style is available with a lab-grown center stone. Most lab-grown engagement rings fall between $4,000 and $8,000.
Learn more →Eternity bands, half-eternity, channel-set, and pavé wedding rings with lab-grown diamonds. A perfect match for your engagement ring at a fraction of the cost.
Learn more →Lab-grown diamonds make custom tennis jewellery more accessible — the savings on stones allow for more carats without compromising on quality.
Learn more →Two lab-grown diamonds in complementary cuts — pear and round, oval and emerald, or any combination you imagine.
Learn more →Lab-grown diamond studs, drop earrings, and solitaire pendants — handcrafted in 14K, 18K gold, or platinum.
Learn more →Already purchased a lab-grown diamond? Bring it to our studio and we will design and handcraft a custom setting around it.
Learn more →“I commissioned a custom gold ring from Sergio and he did a marvelous job. He made sure the design was exactly what I was looking for and really took his time to consider every tiny detail. A true professional and a lovely person. Highly recommended.”
“Sergio was very patient and kind. He helped me design a one-of-a-kind bracelet for my partner to signify an infinite loop. It took many design iterations to settle on something I liked, and Sergio was very patient and helpful throughout. The final piece was beautiful, and I absolutely loved it. Thank you to Sergio for allowing me to gift something so personal to my loved one.”
“Thank you Eric for the great words and your trust. Looking forward to design many pieces for you. Congrats ! Sergio”
“Sergio was amazing to work with. My fiancée first discovered them at a bridal show when she tried on a ring she instantly loved. When I went in later, they already had all her info saved, which made the process so easy. From start to finish, they were professional, attentive, and made sure every detail was perfect. The quality and sparkle of the ring and diamonds are incredible, we couldn’t be happier. Highly recommend!”
“I have worked with a lot of jewellers in the GTA, and I can confidently say Sergio is by far the best. Very professional service with a wide variety of quality products. Highly recommend!”
“It was a pleasure meeting you today Gloria and helping you. Thank you for the 5 stars! Sergio”
“Sergio was an excellent consultant, guiding my fiancée through the many ring options with care and expertise. He was recommended to me by a coworker who cited his numerous 5-star reviews, and now I completely see why. I really appreciated how intentional he was about not influencing her decision, instead asking thoughtful questions that helped her uncover what she truly wanted. He also worked closely with me to find the best version of her design while maximizing my budget, which made a big difference. And somehow the ring was even better than we expected! Six stars ⭐️”
“Sergio was very kind and patience. He listened to our requests to make sure the ring was perfect. And the rings he made are amazing and fit perfectly. 10/10 recommend!”
“Where do I even begin? Sergio is not only an exceptional jeweller but also a genuinely kind and thoughtful person. From our very first phone call to the moment we received our ring, he was warm, attentive, and easy to talk to. Throughout the entire process, he kept me well-informed and made everything feel seamless. His craftsmanship is outstanding, with an incredible eye for detail. I wouldn’t hesitate to return to Sergio for future pieces—he’s truly one of a kind!”
“Sergio is one of the most sensitive people I've met since I moved to Toronto. It was a pleasure to bring my Miraculous Medal to get plated, a new life to such an important and sentimental piece I own. I highly recommend Orosergio. Thank you!”
“We had a fantastic experience working with Sergio. He came highly recommended by some of our friends who have worked with him over the years. In our case, he went above and beyond our expectations with regards to the level of service we received and of course the quality product and design (in our case, rings) that he delivered. He is a consummate professional and we highly recommend Orosergio Jewelery!”
“I had a complicated ring sizing situation, but Sergio was beyond wonderful! He was incredibly patient and thoughtful throughout all of our interactions. He clearly takes significant pride in his work as he won’t do a job unless it’s perfect. He’s incredibly knowledgeable. I couldn’t be more impressed with my experience and the quality of his work! Thank you, thank you, thank you! I couldn’t recommend him enough!”
“I commissioned a custom gold ring from Sergio and he did a marvelous job. He made sure the design was exactly what I was looking for and really took his time to consider every tiny detail. A true professional and a lovely person. Highly recommended.”
“Sergio was very patient and kind. He helped me design a one-of-a-kind bracelet for my partner to signify an infinite loop. It took many design iterations to settle on something I liked, and Sergio was very patient and helpful throughout. The final piece was beautiful, and I absolutely loved it. Thank you to Sergio for allowing me to gift something so personal to my loved one.”
“Thank you Eric for the great words and your trust. Looking forward to design many pieces for you. Congrats ! Sergio”
“Sergio was amazing to work with. My fiancée first discovered them at a bridal show when she tried on a ring she instantly loved. When I went in later, they already had all her info saved, which made the process so easy. From start to finish, they were professional, attentive, and made sure every detail was perfect. The quality and sparkle of the ring and diamonds are incredible, we couldn’t be happier. Highly recommend!”
“I have worked with a lot of jewellers in the GTA, and I can confidently say Sergio is by far the best. Very professional service with a wide variety of quality products. Highly recommend!”
“It was a pleasure meeting you today Gloria and helping you. Thank you for the 5 stars! Sergio”
“Sergio was an excellent consultant, guiding my fiancée through the many ring options with care and expertise. He was recommended to me by a coworker who cited his numerous 5-star reviews, and now I completely see why. I really appreciated how intentional he was about not influencing her decision, instead asking thoughtful questions that helped her uncover what she truly wanted. He also worked closely with me to find the best version of her design while maximizing my budget, which made a big difference. And somehow the ring was even better than we expected! Six stars ⭐️”
“Sergio was very kind and patience. He listened to our requests to make sure the ring was perfect. And the rings he made are amazing and fit perfectly. 10/10 recommend!”
“Where do I even begin? Sergio is not only an exceptional jeweller but also a genuinely kind and thoughtful person. From our very first phone call to the moment we received our ring, he was warm, attentive, and easy to talk to. Throughout the entire process, he kept me well-informed and made everything feel seamless. His craftsmanship is outstanding, with an incredible eye for detail. I wouldn’t hesitate to return to Sergio for future pieces—he’s truly one of a kind!”
“Sergio is one of the most sensitive people I've met since I moved to Toronto. It was a pleasure to bring my Miraculous Medal to get plated, a new life to such an important and sentimental piece I own. I highly recommend Orosergio. Thank you!”
“We had a fantastic experience working with Sergio. He came highly recommended by some of our friends who have worked with him over the years. In our case, he went above and beyond our expectations with regards to the level of service we received and of course the quality product and design (in our case, rings) that he delivered. He is a consummate professional and we highly recommend Orosergio Jewelery!”
“I had a complicated ring sizing situation, but Sergio was beyond wonderful! He was incredibly patient and thoughtful throughout all of our interactions. He clearly takes significant pride in his work as he won’t do a job unless it’s perfect. He’s incredibly knowledgeable. I couldn’t be more impressed with my experience and the quality of his work! Thank you, thank you, thank you! I couldn’t recommend him enough!”
Lab-grown diamonds cost 60–80% less than comparable natural stones. This means a 2-carat lab-grown diamond that would cost $15,000–$20,000 as a natural stone can be yours for $4,000–$6,000 — with identical visual properties.
At OROSERGIO, the savings on the stone go directly to you. There is no retail markup on our lab-grown diamonds — you are working directly with the goldsmith who sources and sets your stone.
Visit our downtown Toronto studio or connect online. Discuss your vision, budget, and preferences. Sergio will explain the differences between lab-grown and natural diamonds so you can make an informed choice.
Sergio hand-selects lab-grown diamonds that meet your specifications — carat, cut, colour, and clarity. Center diamonds of meaningful size come with independent IGI certification. You approve the stone before design begins.
Your piece is designed in 3D CAD and presented as a photorealistic rendering. Refine every detail — setting style, band width, metal type — until it is exactly right.
Sergio handcrafts your piece in our Toronto studio. Final inspection, professional photography, and presentation in OROSERGIO packaging. Most pieces are ready in 2–3 weeks.
Yes. Lab-grown diamonds are chemically, physically, and optically identical to mined diamonds. They are made of pure crystallized carbon with the same hardness (10 on the Mohs scale), the same refractive index, and the same brilliance. The only difference is origin — one formed underground over billions of years, the other was grown in a certified facility in a matter of weeks. Both are graded using the same 4Cs framework.
Lab-grown diamond engagement rings at OROSERGIO typically range from $5,000 to $8,000 depending on carat weight, cut quality, and setting complexity. This is 60–80% less than a comparable natural diamond ring. During your consultation, Sergio provides a detailed, transparent quote — no hidden costs.
Not with the naked eye — they look identical. Even trained gemologists cannot distinguish between lab-grown and natural diamonds without specialized equipment. During your consultation, Sergio will show you both options side by side in natural light so you can compare for yourself.
Yes. Lab-grown center diamonds are independently certified by IGI — the same grading standard used for natural stones — documenting carat weight, cut, colour, and clarity and confirming the stone is laboratory-grown. Certification is provided for center diamonds of meaningful size; smaller accent stones are not individually certified. Sergio confirms exactly what comes with your stone before any work begins.
Lab-grown diamond prices have dropped significantly — roughly 80% over the past five years — as production technology has scaled. This means resale value is low compared to natural diamonds. However, most clients choose lab-grown diamonds for their beauty, ethics, and upfront value — not as an investment. The substantial savings allow you to choose a larger stone, a more intricate setting, or put the difference toward your future together. If long-term value retention is important to you, we also offer natural diamonds.
Lab-grown diamonds are produced using two methods: High Pressure High Temperature (HPHT), which replicates the extreme conditions deep within the Earth, and Chemical Vapor Deposition (CVD), which grows diamond crystal layer by layer from a carbon-rich gas in a vacuum chamber. Both methods produce diamonds that are identical to mined stones in every measurable way.
Book a consultation at our downtown Toronto studio. Sergio will walk you through lab-grown and natural diamond options side by side — so you can see, compare, and choose with confidence.
Book an Appointment
