Lab-Grown Diamonds

Loose Lab-Grown Diamonds in Canada

Find a lab-grown diamond that fits your style, budget, and vision. At Jacob Mercari, we offer a curated selection of certified lab-grown diamonds in a wide range of shapes, carat weights, and quality grades, making it simple to choose the perfect centre stone for your engagement ring or custom jewellery piece.

Our Toronto team is here to help you compare diamonds, understand the 4Cs, and select a stone that balances beauty, value, and craftsmanship.

Looking for something specific? Contact Jacob Mercari, and we’ll be happy to source the perfect lab-grown diamond for you.

Create a Custom Engagement Ring

Custom design is our specialty! Book an appointment in Toronto or Online.

Frequently Asked Questions

Are lab-grown diamonds real diamonds?

Yes. Lab-grown diamonds are real diamonds with the same chemical, physical, and optical properties as natural diamonds. The difference is their origin: lab-grown diamonds are created in a controlled environment rather than formed naturally underground.

How long will it take my diamond to arrive?

Lab-grown diamonds purchased will ship in 6-14 business days. We ship with FedEx insured priority next-day delivery. Shipping times may vary due to customs or other unforeseen events.

We will keep you updated regarding any disruptions.

Do lab-created diamonds come with a certificate?

Yes, our lab-grown diamonds come with a diamond certificate from GIA or IGI.

The diamond grading report number is laser etched onto the girdle of each diamond.

Do you sell engagement rings to fit the diamond I select?

Yes, we do!

Visit our engagement ring builder to complete your ring, or contact us to book an appointment for a custom design.

We are happy to assist with any questions you may have.

Can I use a lab-grown diamond for a custom engagement ring?

Yes. Lab-grown diamonds are an excellent choice for custom engagement rings. Jacob Mercari can help you choose the right stone and design a setting that complements its shape, proportions, and style.

Are lab-grown diamonds less expensive than natural diamonds?

Lab-grown diamonds typically offer a larger or higher-quality stone at a lower price than a comparable natural diamond. This makes them a popular choice for clients who want excellent brilliance, size, and value.

Can Jacob Mercari source a specific lab-grown diamond?

Yes. If you don’t see the exact diamond you’re looking for, contact Jacob Mercari. Our Toronto team can help source a lab-grown diamond that matches your preferred shape, carat weight, colour, clarity, budget, and design goals.

From our people
From our people
This is THE place to get the ring. Greg is an absolute fantastic person to work with and his designs are flawless. He is patient, flexible, can work with any budget, and is incredibly welcoming. He makes the process stress free and super clear. My now fiance loves her custom ring and we’ll most likely come back for the wedding bands! Highly recommend!
— Diego O., Toronto
From our people
Had a fantastic experience with Greg at Jacob Mercari! He was incredibly helpful throughout the process, from designing the ring to selecting the perfect stone. His expertise and suggestions made all the difference. Highly recommend!
— Aaron., Toronto
Jacob Mercari Custom 14K Yellow and White Gold Emerald Cut Lab-Grown Diamond Engagement Ring
From our people
I purchased an engagement ring online from their website. It was very easy. They contacted me right away and the communication was excellent. The ring shipped in a timely manner as they said 3 weeks and it came in 3 weeks. The ring came and it was AMAZING!! my fiancé was ecstatic. I highly recommend Jacob Mercari. Wish I could give more than 5 stars.
— John.G., Toronto
Jacob Mercari 14K White Gold 5 stone round cut lab-grown diamond engagement ring