Nordstrom offers the Cara Stone Women's Frontal Necklace in three colors (Ruby/Multi Gold pictured) for $38.86 with free shipping. That's $19 off and the lowest total price we could find. It features a 17" length, 2-1/2" extender, and 2-1/4" drop.
Most taxpayers will see their tax bill go down during 2018. That could impact which type of account -- traditional or Roth -- makes sense for you.