Shiny Silver via Amazon offers the Charm Sun Big Letter Initial Necklace in 18K Gold, Platinum, or Rose Gold Plating for $15.99. Clip the 8% off coupon on the product page and apply code "UKZHPXBY" to drop it to $11.51. With free shipping for Prime members, that's $4 off and the lowest price we could find. It features a 29.5" snake chain, 2" extender, and is available in letters A to Z. Deal ends February 28.

Update: The price has dropped to $13.59 before coupon, $9.78 after.