ntique Engagement Ring Victorian .98 Old Mine Cut Diamond in 18K Yellow GoldA dazzling display of diamonds, this Victorian engagement ring is all sparkle. The center stone is a . 98 carat old mine cut diamond which is encircled by a halo of nine (9) additional old mine cut diamonds. The shank of this ring is a rich 18 karat yellow gold and features a subtle three way split as it meets the diamonds. This ring sits close to the finger and has an almost floral like charm!