14k Yellow Gold Solitaire Ring Oval CZ Synthetic Oct Birthstone Genuine 14k gold. A gift box is included with purchase. Sparkly oval shape synthetic cubic zirconia center stone is 6mm x 4mm which is equivalent to a 0.50ct stone. Timeless and beautiful design is perfect for everyday use. It also works great as a simple promise ring to symbolize love and commitment. Available in select birthstone colors, it makes a wonderful gift item for all occasions. Ships with signature requirement. Courier will not deliver without a signature.