three diamond engagement rings

Looking for a Custom Engagement Ring?

Toronto ring experts for 30+ years

Download Our Custom Ring Idea Book

Design a Custom Engagement Ring

Our design process ensures that your dreams will be realized and allows you to build your own custom engagement ring for your bride-to-be.

3 Ways to Design your Own Custom Engagement Ring

If you’ve got a vision for a completely unique ring, bring it to us. Our talented team will draw it out and create a stunning work of art that goes beyond your wildest dreams.

You’ve seen a piece you like, but it’s not quite what you’re looking for. We’ll take the base and modify it to match your desires.

Maybe a celebrity wore it, or you saw it on TV. Bring us a picture and we’ll replicate it exactly.

Our Process

The first step of our process is to hold a personalized consultation.diamond loop and tweezer Our team of designers will meet with you in order to and draw out the essence of your vision for your custom made engagement ring and fully comprehend your needs and wants. During our meeting we’ll show you pieces of jewellery to help guide your dream. This includes not only the engagement ring settings, but also the various diamond and gem options. Our goal throughout this process is to fully understand exactly what it is you’re looking for, both in terms of style and materials used.

custom engagement ring CAD design
Part of our custom design process.

The next step is to create a digital render of your vision. During this process, you’re free to make any changes you see fit to help align with your goal. Once we’ve gotten final approval on the render, we can move forward.

jewellery manufacturing processThe third step is for us to manufacture your ring, using your chosen metal and gemstone, to match the 3d rendering exactly. Once the ring is cast, our skilled craftsmen will carefully set the gemstones and polish the piece.

Once the ring is made, we send it out to a third-party, independent appraiser. This is to confirm the metal and diamond’s quality. During this process, they’ll weigh the ring and provide an estimated value of the piece.

Our final step is to hold a presentation meeting with you. During this step, we’ll present your customized engagement ring, and explain how to best care for the piece going forward. In addition, we’ll answer any questions you may have about the piece or the process, as well provide recommendations for insurance options. Your happiness is our goal.

We know that if you choose to work with us, you’ll get a truly gorgeous, unique custom engagement ring. Our history of success and expertise will give you the confidence to know that the design and creation of your ring will be in the best hands. Rest assured that your partner will love the ring you create for her. To arrange a free 30 minute design consultation, please click here.

What You’ll Receive

Every custom ring includes a:

  • Independent third-party appraisal
  • GIA certificate
  • Beautiful jewelry box and packaging
  • Free shipping across Canada & the USA duty free
  • 100% conflict-free & ethically sourced

As a result, you can rest assured that what you’re receiving is not only a fair price, but also ethically sourced.

Why Jacob Mercari?

By choosing to work with us, you’re getting the knowledge that you’ll receive the best possible care and quality craftsmanship. Whether you have a unique vision in your mind or you want to base your creation off of an existing ring or foundation, we will help you to fully realize your dream. Our design experts are experienced and can provide you with the guidance that you need to be confident in your decisions. We take pride in creating works of art for the fairest possible price. By working with us, you can’t go wrong.

Reasons Why You Should Consider a Custom Engagement Ring From Jacob Mercari

  • History of success
  • Highly skilled craftsmen
  • Quality you can take pride in
  • Ethically sourced diamonds, gems, and metals
  • Fair valuation using independent third party appraisers
  • Guiding process will ensure your vision is realized

Our History

The successes we’ve had will ensure that you can be proud of the end piece that we create together. Our previous experience has allowed us to expertly hone our jewellery selection process, which means that you are assured the highest quality product. Our goal is to ensure that both you and your partner are happy.

Unique Custom Engagement Rings

We know that your partner is special, and you want a ring that will make her feel proud.  Designing your own engagement ring is a great way to show her not only that you care, but also that you are both confident and proud of your relationship and your love.  No pre-designed ring can capture what she means to you. By building your own custom engagement ring, you can immortalize her beauty forever.

Or, if you’d prefer, you can browse our massive catalog of pre-designed-engagement rings to provide your loved one with a stunning ring in an iconic time-tested style.

The Types of Engagement Rings we can Create

Speak to a Ring Designer

I found Jacob Mercari on internet. At first I was skeptical with Greg. After several discussions. he made me feel comfortable and took his time in explaining the 4c's and provided me options for my diamond earrings purchase - no pressure. It was a surprise birthday gift for my wife. He's very professional and answered all my inquiries in a timely manner. We were very happy and satisfied with Greg. I would recommend him.
Wilson Ngo
Wilson Ngo
14:53 17 Feb 17
Working with Greg at Jacob Mercari was a great experience. His knowledge and guidance through the process of design and implementation was invaluable. Thanks so much!!
krishna beharry
krishna beharry
21:17 16 Feb 17
Dealing with Gregory Jacobson at Jacob Mercari, was an absolute joy. After painstakingly searching for a professional outfit which you could trust, I couldn't be more pleased to have purchased a ring from the company. My fiancee and I were beyond happy with the outcome of the ring quality, price and delivery time. We will definitely be going back to deal with Gregory Jacobson at Jacob Mercari, and will strongly suggest anyone looking for jewelry to only deal with Gregory Jacobson at Jacob Mercari! Thanks again!
Devin Wosminity
Devin Wosminity
18:56 08 Nov 16
My overall experience with Jacob Mercari was educational, value-added, and fun! And my impressions of Greg as an individual are that he is patient, meticulous about providing quality, and above all trustworthy.Greg far exceeded my expectations with regards to 3 custom rings (1 engagement, 2 wedding bands); however, what truly stands out is not the final product (which is amazing) but rather the process Greg takes you on.He goes above and beyond to invest into you as a customer. What I mean by this is that Greg takes the time to educate you on the industry as a whole, his company, the process, and is more than willing to answer any questions you may have at any time. He does all of this without any commitments from you monetarily or otherwise, and even if you do not make a purchase, after meeting Greg you will be more informed and prepared to make smart purchasing decisions. My absolute favorite part of the entire process is working with Greg to design the rings. He is a great listener and is able to translate your thoughts effectively into a great design. It’s also really helpful when you can touch and feel loose stones and example settings, as you really begin to understand what it takes to put a ring together. As a next step, you work with Greg to review 3D renderings of your design and have an opportunity to make sure all the fine details that truly make your ring unique are taken care of (the graphics are pretty cool too).It’s at this point in the process you leave things in Greg’s very capable hands. He provides frequent updates on the progress of your rings, and he is sure to follow-up if there are questions about the details – I really appreciate that he doesn’t make any assumptions on your behalf and that he ensures you are comfortable throughout the entire process.In the end, what you are left with is something truly unique and something you really feel you’ve had a part in putting together (as opposed to just picking out something off of a retail store shelf).I have and will continue to endorse Greg to my friends and family!
Derrick Sarwan
Derrick Sarwan
02:27 10 Jun 16
Greg did a fantastic job for us! I trusted him every step of the way, and he was very patient in answering all of my questions and working with me. He was a pleasure to work with--from finding the right stone to designing the whole piece. I would not hesitate to recommend Greg!
Jordan Waltman
Jordan Waltman
18:18 20 Sep 16
Such amazing work! Im so happy i find found you guus to help custom make my now fiances ring! She absolutely loves it! I couldnt have asked for better! You guys are the best! Thank you guys!
Bronson Houle
Bronson Houle
02:30 23 Jul 17
I had a great experience with Jacob Mercari. Gregory was very knowledgable and helpful.
Samantha Claydon
Samantha Claydon
08:19 28 Aug 17
I recently purchased a custom engagement ring. Having done my research I knew Jacob Mercari had great ratings, and my experience backs up why they have 5-star ratings time and time again! I vaguely knew what I was looking for prior to my first visit, but Greg worked with me to design the perfect engagement ring! My fiance is over the moon about how amazing her ring is! Initially I feared my tight timeline would be an issue, but Greg made sure the ring was ready very quickly. And the quality... wow! I guarantee you will not be disappointed buying a ring here!
Chris Rausch
Chris Rausch
23:07 03 Oct 17
I think I visited 7 different jewellers across Toronto (and online!), but found Jacob Mercari to offer the best selection, value, and service. Instead of pushiness and deception, I found graciousness, excellent knowledge of the market, and integrity. My fiancée loved the ring -- the diamond as well as the artistic setting. Couldn't recommend them higher.
Logan Gates
Logan Gates
18:59 10 Oct 17
We recently purchased a beautiful CanadaMark Diamond from Greg. He found us just what we were looking for and made the diamond buying process very comfortable and easy! He really knows his stuff and we felt very confident in his selection.
22:08 25 Nov 17
I must admit this was the most unexpected wonderful experience I've had in all my years of shopping for jewelry. I did not know what to expect going in but I think I prefer this than going into a store. It is a private and personable experience which does not make you feel like you are in a rushed situation.Greg was kind, knowledgeable and patient enough to listen to what I wanted, to give me options that lined up with what I needed (rather what she said she wanted, because that's how it really is when you're buying an engagement ring). I really appreciate the services offered and the work done. A truly beautifully designed ring that was ready by the date I said I would have needed it. Fantastic service and exceptional professionalism. I will continue to use his services as he is now my go to jeweler.
Adrian Bryan
Adrian Bryan
20:55 19 Dec 17
If I could give 6/5 stars, I would. My experience with Jacob Mercari was nothing short of perfect. I worked with Greg on my engagement ring, and from the very first meeting through finished product his customer experience was above and beyond. He made me very comfortable with the whole diamond buying experience, gave me much knowledge on the subject and was never pushy with options or even working with his company. We created a custom piece, stayed in budget and my fiance could not be happier with the finished product. I visited numerous other jewelers and can say without a doubt I made the right decision. I highly recommend Jacob Mercari for anyone looking for an engagement ring.
Brandon Banner
Brandon Banner
18:48 20 Dec 17
Greg was very responsive to us when we had questions all the way through the process of having an engagement ring made. Even before we committed to purchasing anything, he was quick to respond to emails. Greg is very professional, genuine, and accommodating. He would meet with us on his days off, since we were coming from outside the city. We had very specific requests about the ring and Greg was able to meet all the requests within our budget, and even told us we would be saving money on purchasing lab-created diamonds instead of mined ones. Where we saved on the diamonds, he informed us he could cast the ring in platinum instead of gold. We had a design in mind for the engagement ring, Greg and his team were able to provide us with a render of the ring before committing to casting it, which was nice to see. Included in the price of the ring, was an annual cleaning service, as well as inspecting the ring for damage. It is a nice touch to great service. Very much appreciated. We would recommend Greg to anyone we know personally, and would approach him again in the future for other custom jewelry.
David Gregory
David Gregory
21:25 30 Dec 17
Greg was a pleasure to work with! My engagement ring had diamonds 3 quarters around the band and I wanted to make it an eternity by adding more diamonds. He did this in one day!! Plus he cleaned & polished the ring so it looks bright and sparkly. I am extremely happy with the service, price and the result. Would definitely recommend Jacob Mercari to anyone who's looking for an excellent jeweler in Toronto.
Rachel Lee
Rachel Lee
15:05 15 Jan 18
Greg was great and very responsive during the whole process. He had tons of selection and was very helpful with lots of suggestions. The final product turned out perfect! Would definitely recommend.
Nick Chan
Nick Chan
15:52 17 Feb 18
The Mercari team did an amazing job designing an engagement ring for us! Greg was a joy to work with. We went with a sapphire, and Greg was able to provide us with a large selection of beautiful and ethically sourced stones to choose from. The final ring is stunning! The design process really made the ring unique. And the price was great. I definitely recommend!
Daniel Pyette
Daniel Pyette
19:00 29 Mar 18
I approached Greg to design and create a custom engagement and the whole process was thoroughly transparent, professional, and enjoyable. During my initial visit and the selection of the stone, Greg recommended diamonds within my budget that had excellent light performance while still being at a great price. He presents these stones under a single fluorescent light source to showcase their performance under typical lighting, unlike jewelry stores that use multiple pot lights that would make any diamond sparkle. There was complete transparency in the cost breakdown of the stone and the band and I felt no pressure to commit to the deal.I requested a band design with very intricate and fine details. Greg responded quickly to any inquiries and requests. He and his team sent me 3D renders of the design, and we met to discuss changes and refinements to the band until we reached a design that was exactly what I wanted. The final product was perfect, and Greg surprised me with an upgrade of the band from white gold to platinum. My fiancee was thrilled as every aspect of the ring was exactly what she wanted.I am also very happy with the free aftercare services. Greg even met us outside of office hours to make sizing adjustments and to give the ring a polish. I could tell that he cares for his customers and takes pride in his craft. I unreservedly recommend his services.
Yulong Sun
Yulong Sun
15:21 14 Apr 18
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