I have wired with sterling wire 5 teardrop rainbow stones in a vibrant high quality faceted quartz. These have QUITE a sparkle. 

Sterling lobster clasp closure and chain. The dangle is apprx 1". I can do this on gild filled chain at no additional cost-- just leave me a note at checkout. There is a coordinating pair of earrings to match, also called Goody Goody Gumdrop.

Your necklace will be beautifully giftboxed.