GuqiGuli via Amazon offers its GuqiGuli Infinity Love Cushion Cut Created Blue Sapphire Sterling Silver Pendant Necklace for $29.99. Coupon code "ZU68B5ZM" cuts it to $16.49. With free shipping, that's $34 under the lowest price we could find for a similar necklace elsewhere. It's surrounded by cubic zirconia and set in rhodium-plated sterling silver.