The lovely Bubble ring is made in an organic wavy design with Carré's iconic herringbone pattern on the ring shank, and is set with a cabochon-cut Golden Rutile Quartz gemstone in prong settings. The ring belongs to the Bon Bon collection, consisting of jewellery set with wonderful gemstones cut like sweet bon bons. Golden Rutile Quartz is a clear Quartz gemstone with golden needles called rutiles, and symbolises development, change, independence, and decisiveness. Material: Gold Karat: 10K Stone: Golden Rutile Quartz Number of Stones: 1 Stone Setting: 4 Prong Dimensions: Stone: 10 x 8 mm Does it come with certificate?Yes Can the piece be engraved? No