C. 1980. Bright, bold and totally '80s, this unique Estate collection ring wraps a polished ribbed band of 10kt yellow gold around the finge… C. 1980. Bright, bold and totally '80s, this unique Estate collection ring wraps a polished ribbed band of 10kt yellow gold around the finger in an elegant bypass design. A fiery .35 carat round brilliant-cut diamond is cradled at the center, with more petite gems at the sides, totaling .24 carats. 3/4" wide. Diamond bypass ring. Exclusive, one-of-a-kind Estate Jewelry.