Vintage Citrine and Diamond Earrings in Yellow GoldVintage Citrine and Diamond Earrings in Yellow Gold. Such a unique look in these Mid Century citrine and diamond stud earrings which are set in 14 karat yellow gold. The neat square shape is made by facing trilliant cut citrines with a pave section of round brilliant cut diamonds. The contrast of color and texture is something in a vintage design you dont often see makes these a very special pair.