Old Mine Cushion SI1 Lab Grown Diamonds

Many old mine cushion SI1 lab grown diamonds are eye-clean. The antique faceting produces chunky sparkle that helps conceal inclusions, though the larger facets are slightly more transparent than modern crushed-ice. Each stone should be evaluated individually. Look for off-center, light-colored inclusions for the best chance.

Look for white or transparent inclusions positioned away from the center of the larger facets. The old mine cushion's broad sparkle flashes can mask SI1 inclusions effectively when positioned favorably. Avoid dark inclusions centered under the table. The open culet is a design feature, not a flaw.

SI1 saves 15% to 25% over VS2. If you find an eye-clean SI1 with great vintage proportions, the savings can fund an authentically styled vintage setting with milgrain or filigree that enhances the antique character.

A old mine cushion the higher crown creates depth and a warm, chunky sparkle pattern. At SI1 clarity, inclusions noticeable under 10x magnification, sometimes visible to the naked eye depending on the cut. The old mine cushion cut's soft, romantic cushion shape inspired by 18th and 19th century diamond cutting creates a distinctive profile on the hand.