1.51 Victorian Rose Cut Diamond Engagement Ring in Yellow Gold.  This antique Victorian engagement ring features a GIA-certified 1.51 carat rose cut diamond and .24 carats of accent diamonds finished in 15 karat yellow gold and platinum. The round center diamond is near colorless and has facets that resemble the petals of a rose. The sparkling, primary diamond is prong set and accented by two (2) .12 carat Old European cut diamonds. The variety of the diamond facet cuts give this vintage ring a unique, textured look. The three stone engagement ring has unique engraved shoulders that resemble pillars on this two-toned, platinum and 15 karat yellow gold ring.