This elegant opal necklace features a dainty opal set on a pendant with an exquisite design, perfect for various occasions and daily wear. Crafted from S925 sterling silver, it is nickel-free, lead-free, cadmium-free, and hypoallergenic for safe and comfortable use. The pendant measures 9.3mm (0.37 inches), and the chain is 18 inches long with a 2-inch extension for adjustable wear. This round opal jewelry makes a beautiful birthday gift for women, lovers, girlfriends, mothers, daughters, or yourself, ideal for birthdays, anniversaries, New Year’s Day, or Christmas. We promise a 100% return and exchange policy within the specified timeframe. If you have any questions or suggestions, feel free to contact us, as we strive to provide the best customer service. A blue gift box is included for a perfect presentation.