Caperci Direct via Amazon offers its Caperci Created Blue Sapphire Diamond Accent Infinity Pendant Necklace in Sterling Silver for $26.99. Coupon code "YA5785UQ" cuts that to $15.65. Plus, Prime members bag free shipping. That's $3 under last week's mention and the lowest price we've seen. (It's also $16 below the lowest price we could find for a similar necklace elsewhere.) It features a 4.5mm created blue sapphire and 18" chain.