Fine Jewelry, Crafted Directly for You

At AGI Design, we combine over 27 years of hands-on bench jewelry experience with modern 3D design technology. Whether you're browsing our ready-to-ship collection or starting from scratch, you'll find classic solitaires, low-profile bezel settings, three-stone rings, and custom halo designs. We source certified lab-grown diamonds in round, oval, cushion, emerald, radiant, princess, pear, and marquise cuts, hand-selecting every stone for exceptional color, cut, and eye-clean clarity.

If you have a specific vision in mind, we make custom design simple and stress-free. Just send us a rough sketch, a screenshot, or a few photos of different rings you like. We'll blend your favorite details into a custom 3D computer model and send you realistic preview images so you can approve every angle before we cast a single gram of gold. From your first idea to final hand-polishing, a fully custom engagement ring in Toronto can be ready in under four weeks.

Browse our online collection or reach out to build something completely your own. We're here to guide you through every step of the process.

Explore the AGI Design Collection

Lab-Grown Diamond Engagement Rings

Every engagement ring we make is built for everyday comfort and long-term durability. We craft our settings in solid 14k and 18k yellow, white, and rose gold, as well as strong platinum, using sturdy band widths designed to keep your center stone secure for decades.

Custom & Classic Wedding Bands

Mark your milestone with a wedding band that fits both your hand and your engagement ring properly. From classic plain gold bands and diamond eternity rings to curved bands shaped to sit flush against your engagement ring, every piece is custom-fitted for a clean, gap-free stack.

Lab-Grown Diamond Earrings

Complete your collection with everyday lab-grown diamond studs and drop earrings crafted in solid 14k or 18k gold. Whether you're looking for a pair of classic round diamond studs or a meaningful anniversary gift, our earrings are lightweight, comfortable, and safe for sensitive ears.

Bespoke Custom Ring Design

You don't need to be a jewelry designer to create a one-of-a-kind ring. We walk you through a clear four-step process: sharing your inspiration, reviewing your 3D computer model, checking a 3D-printed resin model, and casting and hand-setting your ring in our Toronto studio.

Why Choose Us for Diamond Engagement Rings in Toronto

• Free First-Year Resizing & Lifetime Care: Every gold and platinum piece is backed by our 12-month manufacturing warranty and includes one free ring resizing within the first 12 months. You also get complimentary lifetime maintenance, which covers professional cleaning, polishing, and checking the metal prongs to make sure your diamond stays tight and secure.

• Behind-the-Scenes Photo Updates: Buying an engagement ring online shouldn't feel like a guessing game. While we build your custom ring, we share a private online photo album with you so you can watch your piece come to life at our bench, from 3D printing and metal casting to setting the stones by hand.

• Flexible, Interest-Free Payment Plans: We make it easy to pay at your own pace. You can split your purchase using our interest-free in-house payment plan available worldwide, or choose Affirm financing at checkout in Canada for simple monthly payments with no surprises.

• Fast, Fully Insured Express Shipping: We offer free express shipping across Canada and the US. Every order ships fully insured with live tracking and a required signature upon delivery. Custom rings typically ship within 14 to 20 business days, and rush options are available if you're working with a tight proposal date.

Certified Lab-Grown Diamonds

Lab-grown diamonds are 100% real diamonds with the exact same chemical makeup, hardness, and brilliance as mined diamonds. Our Toronto lab-created diamond rings feature certified center stones in colorless D to F grades and high VS1 to VVS1 clarity, giving you a larger, cleaner diamond for your budget.

Custom Rings Built at Our Toronto Bench

Design a truly personal engagement ring in Toronto with AGI Design. Because we handle the 3D modeling, stone setting, and finishing in-house, nothing gets lost in translation between a salesperson and a factory. Every piece is crafted to fit your budget and your vision, never mass-produced, and built to last a lifetime.