Vintage Victorian Mine Cut Diamond Ring 14k Yellow Gold.  This ornate Victorian cocktail ring features 2.88 carats of old mine cut diamonds which are set in 14 karat yellow gold. The diamonds are each set with six (6) prongs and mounted in a navette shape that runs lengthwise down the finger. This is a gorgeous way to incorporate a big diamond look with a fine antique gold patina and a diamond cut you will not see anymore.