Victorian Era Antique Diamond Half Hoop Ring The Porter ring is an authentic vintage diamond ring from the Victorian Era circa 1890. The ring centers an approximately 0.70-carat Old Mine Cut diamond of approximately M-N color. On each side of the center stone are two smaller diamonds of approximately K-L-M color, all together combining for approximately 0.50 carats. The stone is set in an 18kt yellow gold setting. The ring is currently size 6.5 and can be resized! Why We Love It A sweet half hoo Vintage Diamond Ring, Old Mine Cut Diamond, Let It Shine, Vintage Diamond Rings, Yellow Gold Setting, Detail Shop, Antique Diamond, Vintage Diamond, Victorian Era