Shop Natural Diamond Jewellery
Natural diamonds are rare, timeless, and formed deep within the earth over billions of years. At Jacob Mercari, each natural mined diamond is carefully selected for quality, brilliance, and lasting beauty, with certification from trusted grading labs such as IGI or GIA.
Why Choose Jacob Mercari
Certified Natural Diamonds
Every diamond is certified and transparently sourced, ensuring authenticity and quality you can trust.
Private Diamond Guidance in Toronto
Local expert guidance available in Toronto to help you find the perfect piece for your special moment.
Custom Design
Bespoke and custom jewellery design services to bring your unique vision to life with expert craftsmanship.
Insured Shipping
Fully insured shipping on all orders over $400, ensuring your precious jewellery arrives safely and securely.
Find the Natural Diamond Made for Your Moment
Explore certified natural diamonds, compare options with expert guidance, or book a private consultation at the Jacob Mercari Toronto studio.
Common Questions
Are natural diamonds certified?
Yes. Jacob Mercari offers certified natural diamonds with grading reports from respected labs such as IGI or GIA.
Can I choose a loose natural diamond?
Yes. You can shop loose natural diamonds and pair your selected stone with an engagement ring setting or custom jewellery design.
Do you offer custom natural diamond engagement rings?
Yes. Jacob Mercari offers custom engagement ring design using certified natural diamonds in your preferred shape, carat weight, metal, and setting style.
Do you ship natural diamonds across Canada and the USA?
Yes. Jacob Mercari offers insured shipping across Canada and the USA.




