These 10k yellow gold earrings feature 2.3-ct. t.w. rubies that measures 6-mm. length x 6-mm. width. Almost all gemstones have been treated to enhance their color and require special care. Prong setting 2 Rubies Imported Belk Exclusive Material & Care 14K Yellow Gold, Ruby Clean with a soft bristle brush or cloth and warm soapy water. Use gold polishing cloth on gold items.