Old Mine Diamond Engagement Ring in 14K Rose Gold and Platinum.  This fabulous Victorian engagement ring features .53 carat genuine natural diamond on 14k rose gold and platinum. The primary stone is an extremely rare, Old Mine cut diamond that creates an effervescent glitter from within when touched with light. The Victorian, platinum frame around the primary stone includes dazzling, rustic accent diamonds. The 14k rose gold band finishes this piece of jewelry creating a harmonious, two-toned engagement ring that is truly one of a kind!