Canada's Trusted Diamond and Engagement Ring Specialists. Selling the Highest Quality Diamonds in the World at the Lowest Price in Canada for Over 12 Years. ADVANTAGES OF BUYING FROM DIAMOND EXCHANGE: PRICE: We have the highest quality diamonds in the world, sourcing from the same cutters and polishers as some ultra-high end retailers, like Tiffany & Co., at 50 – 80% less than jewellery store prices. 14 DAY MONEY-BACK GUARANTEE: You have 14 days to decide if the diamond is exactly what you wanted.... Read more