Build Your Own Engagement Ring

Celebrate your love with an engagement ring designed to last a lifetime. Each Jacob Mercari ring combines timeless style, exceptional craftsmanship, ethically sourced diamonds, and premium materials for enduring beauty, brilliance, and value.

We offer free, fully insured FedEx shipping across Canada and the USA on all orders over $400.

Looking for something truly one of a kind? Contact us to create a custom engagement ring—we’d be delighted to help bring your vision to life.

Start creating your ring below.

Included with Purchase

  • Independent third-party appraisal
  • Free cleaning & check-ups for life
  • Beautiful ring box and packaging
  • Free shipping across Canada & USA

Create a Custom engagement ring

Book a custom engagement ring consultation in Toronto or online and bring your vision to life with our expert team.

The Engagement Ring Guide

How to Choose the Perfect Engagement Ring

The 4Cs Diamond Guide

Engagement Ring Settings & Diamond Shape Guide

Ring Size Guide

Frequently Asked Questions

How does your ring builder work?

Step 1 - Choose your engagement ring setting from our catalogue.

Step 2 - Select the natural, lab-grown diamond or gemstone you like best.

Step 3 - Review your completed ring and checkout securely.

We will contact you after we receive your order with delivery times and a copy of your invoice.

What type of diamonds do you use in your engagement rings?

Our rings come standard with lab-grown diamonds. If you prefer to use natural diamonds or gemstones in your ring. Please get in touch with us, and we can provide pricing.

What if I don't see the ring I want? Can I customize?

Certainly! We are expert makers of custom engagement rings. We can modify any style you see or create something from scratch. Book an appointment to discuss in more detail.

Does the engagement ring come with certification?

Yes, our engagement rings and jewellery come with an independent appraisal.

The appraisal will confirm the materials in the ring and include your name and retail value. Lab-Grown Diamonds come with a GIA or IGI certificate, and natural mined diamonds come with a GIA certificate.

The diamond grading report numbers are laser etched onto the girdle of each diamond.