5 Carat Old Mine Marquise D Color Diamonds

D is the highest color grade, meaning the stone is completely colorless. In a 5 carat old mine marquise, this exceptional colorlessness pairs with the vintage broad faceting to create a striking combination of antique charm and pure white brilliance.

D color is the rarest and most expensive grade, but the old mine marquise's broad faceting and vintage character can beautifully complement slightly warmer tones as well. If absolute colorlessness is your priority, D is the top choice, though near-colorless grades also perform well in this cut.

Yes, Do Amore offers natural diamonds matching these size, shape, and color preferences, 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 stone with this combination of features looks best in vintage-inspired east-west settings, ornate prong designs, and antique halo settings. At 5 carats, the stone has significant presence, so a simpler setting lets the diamond take center stage. With D color (colorless), only detectable by trained gemologists with master stones. Requires v-prongs to protect the pointed ends while preserving the antique aesthetic. All Do Amore rings include free lifetime maintenance covering inspections, polishing, cleaning, stone tightening, rhodium plating, and resizing.