J.Crew dupe:  $2.06 (BIN:  $9.99)

Crystal rope necklace:  $1.04 (Highest:  $4.01)

Zara crystal flower necklace dupe:  $2.64 (BIN:  $13.99)

Neon gem collar:  $1.06 (Highest:  $6.50) 

All off eBay.