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About Us

Where the worlds of horology and fine jewelry meet.

Our Story: Passion for Craft and Precision

Diamond KIng & Co. was founded in 2023 on a simple philosophy: luxury should be defined by the quality of the piece and the integrity of the service. What began as a personal passion for collecting rare, high end timepieces quickly evolved into a full-service boutique located in Mississauga, Ontario.

As we grew, we recognized that the precision, craftsmanship, and creativity were the exact qualities needed to create a perfect engagement ring or custom piece catered to your needs. Today, we proudly serve a global clientele of watch enthusiasts and couples, offering a curated inventory that standard authorized dealers simply cannot match.

Handcrafted Engagement Rings & Certified Diamonds

Custom Jewellery

An engagement ring is more than a piece of jewelry; it is a physical manifestation of your love story. We specialize in custom engagement ring design, GIA/IGI certified diamonds, and ethically sourced gemstones.

Our master jewelers based out from Toronto, work closely with you to bring your vision to life. Because we source our diamonds and precious metals directly through wholesale channels, we pass substantial savings on to you. This means you can invest in a higher carat weight, superior clarity, and a more intricate custom setting without the inflated brick and mortar boutique pricing. From classic solitaires to intricate vintage inspired settings, we craft rings meant to be passed down through generations.

Trusted Grey Market Watch Sourcing

Navigating the secondary and grey market for luxury watches requires an expert partner. At Diamond King & Co. , transparency is our currency. We specialize in sourcing hard to find, mint condition, and investment grade timepieces from the world’s most prestigious watchmakers, including Rolex, Patek Philippe, Audemars Piguet, and Vacheron Constantin.

Every watch in our inventory undergoes a rigorous, multi point authentication and inspection process by our master watchmakers with over 30 years of experience. We stand behind every timepiece we sell, offering comprehensive warranties and a lifetime guarantee of authenticity. When you buy from us, you bypass years long waitlists and retail premiums, securing the watch you want today.

We Buy Watches and Bullion

We offer top dollar for high end watch brands like Rolex, Audemars Piguet, Patek Philippe, and Richard Mille, alongside buying gold, silver, and other precious metals.

Send Clear Pictures

Multiple angles of the piece. Make sure not to forget papers for the best offer! Via email or text.

Consignment

We provide full safety and piece of mind when leaving your piece with us.

Payments

We accept payments through Cash, Wire, E-Transfer and Crypto. Trade In's are most welcome!