1 Carat Dutch Marquise Blue Color Diamonds

Deep blue across vintage rounded-tip elongation at 1 carat. Exceptionally rare.

Among the world's most precious gemstones.

Yes, natural diamonds with this size, shape, and color combination are available from Do Amore, ethically sourced from Canada, recycled origins, or blockchain-verified conflict-free supply chains. Every diamond is certified by GIA, IGI, or GCAL. Every purchase funds clean water access for one person in need. All rings include free lifetime maintenance covering inspections, polishing, cleaning, stone tightening, rhodium plating, and resizing.

A 1 carat dutch marquise the wider proportions create a distinctive vintage presence on the finger. The blue hue is extremely rare and highly prized, adding collectible appeal. 1 carat natural diamonds are a great starting point and have been the average diamond size for natural diamonds for many decades.