Natural Mined Diamonds
Discover certified natural diamonds selected for beauty, quality, and lasting significance. From classic round brilliant diamonds to distinctive fancy shapes, Jacob Mercari offers a curated selection of natural loose diamonds for engagement rings and custom jewellery.
Our Toronto team is here to help you compare the 4Cs, understand certification, and choose a diamond that balances brilliance, value, and craftsmanship.
Can’t find exactly what you’re looking for? Contact Jacob Mercari, and we’ll be happy to source a natural diamond that fits your vision.
Create a Custom Engagement Ring
Custom design is our specialty! Book an appointment in Toronto or Online.
Frequently Asked Questions
How long will it take my diamond to arrive?
Natural diamond orders typically ship within 6–14 business days. We use insured FedEx Priority delivery, and our team will keep you updated if customs or other delays affect your shipment.
We will keep you updated regarding any disruptions.
What is the difference between natural and lab-grown diamonds?
Natural diamonds are formed underground over millions of years, while lab-grown diamonds are created in a controlled environment. Both can be beautiful choices, but natural diamonds are valued for their geological origin, rarity, and traditional significance.
Are your natural diamonds GIA certified?
Yes. Our natural diamonds include GIA grading reports, which provide details such as carat weight, colour, clarity, cut, measurements, polish, symmetry, fluorescence, and report number.
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 natural diamond in a custom engagement ring?
Yes. Jacob Mercari can help you select a natural diamond and design a custom engagement ring setting around its shape, proportions, and style.
Can Jacob Mercari source a specific natural diamond?
Yes. If you don’t see the exact diamond you’re looking for, our Toronto team can help source a natural diamond that matches your preferred shape, carat weight, colour, clarity, budget, and design goals.
What should I consider when choosing a natural diamond?
Start with the 4Cs: cut, colour, clarity, and carat weight. Cut quality usually has the greatest impact on sparkle, while colour, clarity, and carat weight help determine the diamond’s appearance and value.
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!
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!
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.
