Vintage Victorian Opal & Diamond Ring 14k Yellow Gold & PlatinumVintage Victorian Opal Diamond Ring 14k Yellow Gold Platinum. This Victorian opal and diamond ring features a white cabochon opal with a lovely pink and green play of color. The opal is accented by four (4) rose cut diamonds set into the corners of the gold setting. The ring is constructed in 14 karat yellow gold with scrolling gold work at the shoulders. The rim of the setting has a platinum accent encasing the center stone.