Baby Vine Tendril Rings 9kt Yellow Gold (0,4g) and Silver (1,4 g) with Lavander Enamel and Marquise Cut Rock Crystal ct. 0,55 Material: Gold Karat: 9K Stone: Crystal Stone Colour: White Number of Stones: 1 Stone Carat: 0,75 Stone Shape: Marquise Stone Setting Type: 4 prong Available sizes: 44,46 Does it come with certificate? No Can the piece be engraved? No