Custom Jewellery Handcrafted in Toronto
Work directly with Sergio to design your custom engagement ring or fine jewellery piece — handcrafted in our Toronto studio using responsibly sourced natural and lab-grown diamonds.
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Handcrafted Jewellery Designed to Last a Lifetime
Handcrafted jewellery isn't about following trends — it's about creating something that doesn't exist yet. Every piece Sergio makes is designed around you: your style, your stone, your story. No catalogue. No compromises.
Toronto's Custom Jewellery Studio
At OROSERGIO, custom jewellery means working directly with a master goldsmith — not a salesperson, not a catalogue, and not a factory. Every piece is designed from scratch around the person who will wear it. Whether you're commissioning a custom engagement ring, a tennis bracelet, a toi et moi ring, or a one-of-a-kind pendant or pair of earrings — Sergio designs and handcrafts every piece of custom jewellery in our downtown Toronto studio.
With 30 years of bench experience and a proud membership in the Canadian Jewellers Association, Sergio brings old-world craftsmanship to modern design. There are no middlemen, no outsourced workshops, and direct atelier pricing. You work with the person who makes your jewellery, from the first sketch to the final polish.
We offer both natural and lab-grown diamonds, responsibly sourced gold and platinum, and a fully transparent pricing process. Most custom pieces are completed in 2 to 3 weeks — not months — because everything is handcrafted in-house under one roof.
What We Create
The Journey
Your Vision, One-on-One
Start with a consultation — in person or online — to share your vision or get inspired.
Craft the Details
Select your stone, setting, and style. See a 3D rendering of your piece before it's made, or explore samples in our showroom for inspiration.
Crafted With Care
Our master jewellers handcraft your piece using responsibly sourced stones and precious metals — with precision, passion, and care.
The Moment It's Yours
When the moment comes, your piece is ready — inspected, polished, and presented for you to take home.
Why Choose OROSERGIO for Custom Jewellery
Every detail of our process is designed around you — from responsibly sourced materials to lifetime care.
Quality First
Only the highest-grade precious metals and gemstones make it into our studio. Center diamonds of meaningful size are independently certified — GIA for natural stones, IGI for lab-grown. Every setting is hand-inspected by Sergio before it leaves our bench.
Personalized Journey
Work one-on-one with Master Goldsmith Sergio Chamahyan from the very first consultation through concept sketches, 3D CAD rendering, stone selection, and final handcrafting. No salespeople, no intermediaries.
Ethically Sourced
Natural diamonds are sourced through suppliers who follow Kimberley Process standards, with grading and provenance documentation reviewed where available. We also offer lab-grown diamonds produced in certified facilities, plus responsibly sourced gold and platinum.
Lifetime Warranty
Every custom piece from OROSERGIO comes with a lifetime warranty covering craftsmanship. We also offer complimentary cleaning, inspections, and rhodium re-plating for white gold — because the relationship doesn't end at delivery.
Made for moments like these
Engagements, weddings and everyday milestones, shared by the people we make jewellery for.
Responsibly Sourced Diamonds & Ethical Gold
Every diamond that enters our Toronto studio — whether natural or lab-grown — is selected with responsible sourcing in mind. Our natural diamonds are sourced through suppliers who follow Kimberley Process standards, an international framework intended to prevent conflict diamonds from entering the global supply chain.
We also offer lab-grown diamonds as a mining-free origin alternative. Lab-grown diamonds are chemically, physically, and optically identical to mined diamonds — the only difference is origin. They are produced in certified facilities using High Pressure High Temperature (HPHT) or Chemical Vapor Deposition (CVD) technology, and are usually priced substantially lower than comparable natural stones. Natural centre stones are typically GIA graded, lab-grown centre stones commonly carry IGI grading, and both are real diamonds.
Beyond diamonds, we are equally committed to responsible metal sourcing. The gold and platinum used in our custom jewellery is sourced from refiners that publish responsible sourcing standards. As a CJA member, OROSERGIO upholds the association's strict code of ethics governing transparency, material representation, and professional conduct.
Our Sourcing Standards
Custom Jewellery Collections
Engagement Rings
Design a one-of-a-kind engagement ring with natural or lab-grown diamonds.
Tennis Jewellery
Custom tennis bracelets and necklaces set with your choice of stones.
Toi et Moi Rings
Two stones, one ring — designed to tell your story.
Ready To Wear
Curated pieces ready to ship from our Toronto studio.
Three Decades of Expertise Under One Roof
With 30 years of personal expertise and a proud membership in the Canadian Jewellers Association, Sergio and his team bring your vision to life entirely under one roof.
Learn MoreWhat Our Clients Say
A few words from the people behind the pieces.
“Sergio designed and made my engagement ring and our wedding bands. He is a genius jeweller and his pricing is unbeatable. …”
“Sergio was incredible to work with. He collaborated closely with my fiancé on every detail of my engagement ring and brought our vision to life beyond anything…”
“Sergio is the best jewelry in the city. I know this because I’ve been to a lot to find the perfect place to design custom rings and bracelets. I’m yet to…”
“Sergio made my engagement ring. He worked from an idea that I had seen and it turned out exactly as I’d hoped for. Great craftsmanship and beautiful ring. …”
“Sergio is absolutely amazing! He took care of everything step by step to ensure I got the exact most perfect ring I could dream of. …”
“Sergio is a very experienced and talented jeweller. He communicated well with our needs and responded quickly. …”
“I had an amazing experience designing my custom engagement ring with Orosergio! The team was incredibly helpful and attentive, and the final result is…”
“Love the engagement ring I got for my fiancé, when I showed it to her she said it was exactly as she wanted it, the price was amazing and Sergio was very…”
“Sergio went above and beyond for my husband and I. He did an amazing job with my dream engagement ring.Got my wedding band done by him as well. …”
“We had the best experience being served by Sergeo My cousins engagement ring was designed by him,. An amazing beautiful design, the best finishing, what a…”
“What a gem! I went to Orosergio Custom Jewelry for my custom engagement ring. Sergio was very knowledgeable and accommodating. …”
“Working with Sergio to create an engagement ring was an absolute pleasure. From the initial consultation to the final product, Sergio was dedicated to bringing…”
“I am delighted to share my exceptional experience at Orosergio. Sergio demonstrated an unparalleled commitment to providing superior service, in an industry…”
“A 5-star rating does not nearly begin to describe the wonderful experience I had working with Sergio and his team! …”
“Absolutely thrilled with the engagement ring and wedding band! The service was outstanding - incredibly detailed with pictures and fast responses to all my…”
“I recently worked with Sergio to create a custom engagement ring. From the first time I walked into his office Sergio was welcoming and very knowledgeable. …”
“Costumer service is 100% at Orosergio. Very accommodating to custom jewelry- was surprised to receive my resized ring within 2 days! …”
“Sergio has such a kind and professional demeanour. He definitely knows what he’s doing! …”
Custom Jewellery FAQ
Can't find the answer you're looking for? Get in touch with us directly.
Ready to create something that's yours?
Our studio is located in the heart of downtown Toronto on Queen Street East. We welcome clients from across the Greater Toronto Area and beyond. For those travelling from afar, we offer virtual consultations and personalized shopping experiences — ensuring the same level of care, guidance, and attention to detail wherever you are. Let's bring your vision to life and create pieces that are as meaningful as they are beautiful.
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