These 18K yellow gold Kimberly McDonald geode and diamond stud earrings are crafted in the United States. Showcasing the natural crystalline structure of the gems, this pair features prong set light gemstones surrounded by a border of white diamonds, totalling 0.75 carats. Suitable for pierced ears, they have post back fastenings. These Kimberly McDonald earrings have us seriously considering a career move into gemology (any reason to study them all day).