We exclusively propose diamonds certified by the GIA, the one and only grading authority for the diamond trade worldwide. Other laboratories over-grade stones, giving you a false sense of quality and value.
Sevan Tosun was born in 1977 in Istanbul, Turkey, the former capital of the Byzantine and Ottoman Empires, and home to one of the world’s finest jewelry merchants. At the age of 10, Sevan carried on his father’s legacy and began a full-time apprenticeship with one of the most respected jewelry houses in Istanbul. By age 16, he had learned every facet of the trade, cultivating the highest level of skills a jeweler could achieve in metal, diamond setting, and design, imagining intricate designs and creating pieces from start to finish.
With a fantastic array of skills and dreams of a better life, Sevan left his roots in Istanbul as a teenager and headed for Canada with just $250 in his pocket. Connecting with a relative who had already emigrated to Canada, Sevan arrived in Toronto. Within a few years, Sevan developed a reputation as the most excellent jeweler in the area. In 2000, he founded A.S.T.Jewelry. Today, Design by Sevan stands as one of the premier custom diamond engagement ring boutiques in the Fashion District, Toronto.
Sevan is…for lack of a better term…the man! My fiance has had her engagement ring for over a year and loves it just as much today as the day I proposed and she still gets compliments on it from random strangers. As a guy, buying an engagement ring can be a pretty intimidating and a slightly terrifying experience. Sevan is calm, honest and to the point. I shopped around quite a bit and found Sevan to be the best on price and on style. I tried big stores like Birks who offers you Perrier when you come in the front door (guess what – you pay for that whether you think so or not) and smaller independent places on Queen west (which was definitely more expensive and I wouldn’t even have been given the opportunity to choose the diamond myself!). Beyond the far better prices and quality design, the best part of my experience with Sevan is that he actually seems to have your interests in mind. We stayed within my budget and he helped me pick a great diamond. Normally most jewelers just go by the four Cs…but Sevan taught me about things like the size of the diamonds table. Which meant that he ended up suggesting a diamond which had a smaller carat size but looked larger to the naked eye because of the table size. He also emphasized the proportions of the ring which can influence how much it sparkles…or the ‘fire’ rating of the diamond. All this to say we are incredibly happy with Sevan and his work and will be going back for our wedding bands..
I found Sevan through a referral and he most certainly has lived up to the reputation that precedes him. Sevan helped in all aspects of conceptualising; sourcing and building the most amazing custom engagement ring. His office is conveniently located in downtown Toronto. I travelled from Ottawa to meet Sevan and found it very easy to get from Toronto Island Airport to his office in minutes. Sevan and his office are both welcoming and put you at ease as you venture down the path of making a very large purchase. He instils confidence and trust when you meet him; which will allow you to move beyond validating your jeweller and on to the fun part; designing a dream engagement ring. He spends time ensuring he understands the concepts and then lays out your options out front to ensure price and expectations are in line. We spent a few weeks looking for the perfect cushion cut diamond that blew me away. After the diamond was sourced and purchased we quickly moved to make the ring. Sevan met and made every timeline I asked of him. The communication during the process was excellent and I rarely waited minutes for a response from him. I highly recommend Sevan for his professionalism, customer service and ability to deliver on the most amazing custom engagement ring and would be willing to act as a personal reference for his work and character
Sevan was absolutely amazing to deal with. He found the perfect diamond and complemented it with an incredible design. I live in Ottawa and his store is in Toronto, and I never even needed to make the trip. We exchanged emails, designs, and phone calls in order to complete my request and my ring is even more beautiful than I could have imagined. I would absolutely recommend him to anybody and everybody I know. Thank you Sevan for my perfect dream ring..
We had an amazing experience with Sevan! We had to have our wedding rings designed on short notice and Sevan delivered on time and the rings turned out absolutely beautiful. The experience at his studio is pleasant and he is very patient. He provides a lot of valuable information with regards to style, and type of metals that would be optimal for certain designs. Sevan’s experience shows. He is a true professional and knows his art form in out. We would recommend Design by Sevan to anyone looking to get a truly personalized engagement ring. Thank you Sevan.
Buying a ring from AST was a fantastic experience!! Can’t say enough nice things about Sevan. He runs an honest, pressure free business and has become my go to guy for all my jewelry needs.
If you’re looking for a diamond ring for that special someone Sevan will make you the ring of your dreams for a fraction of the cost of the big guys… and treat you with respect along the way.
Could not be happier!! Highly recommended!!
My girlfriend and I (now fiancée) were referred to Sevan at AST Jewellery by a friend of ours.
Taking a look at his site we found something we wanted (she wanted a coloured stone and we landed on sapphire) to which we promptly set up a time to go meet him and try it on!
Not only was he quick to respond but he made us feel very comfortable with our flurry of questions and took the time to explain various cuts, clarity, etc. This man knows his craft very well and we could tell how passionate he is about it.
We figured out what we wanted and moved forward. Sevan takes you along every step of the way, is honest, assuring, kind and simply a genuinely nice person. When making a big purchase and a big decision like getting engaged it just amplifies the excitement when the person you’re buying the ring from is so fantastic.
A brilliant experience. Highly recommended and we’ll be back for the wedding bands and be referring any of our friends to him.
For many jewellers, making jewellery is a profession – for Sevan, it is an identity.
Discuss visions,ideas and most importantly educate you on diamonds and the whole process.It’s not about a sale or about me it’s about the relationships and trust. Make an enquiry with us today.
Custom Diamond Engagement Rings in Toronto
NO SALES PRESSURE SHOWROOM – No unwanted sales pressure. I promise!
- Every client that walks in has already done their “google” research but there is so much more than what lies in the internet to know about diamonds. It seems so simple but every client leaves my office with a new prospective; something you can’t learn online.
- O It’s not about a sale or about me it’s about the relationships and trust I build with my clients that make my each engagement ring I create unique. Most importantly I want everyone that puts on a engagement ring from Design by Sevan to love it and leave happy .
- We are fully equipped to handle all of your engagement ring shopping needs. This is what you get. My expertise, my education and my honesty. we are forward to meeting you.
We specialize in designing custom diamond engagement rings in Toronto and the surrounding areas. Already have an idea for a diamond engagement ring or another piece of jewelry? Let us help you bring your idea to life, offer the best design advice, and create your one of a kind piece. We design all of our engagement rings in-house, and each ring is created with the same amount of intricate detail, care, and professionalism. Our engagement rings are individually made for each client.