Woman's $15 'costume jewelry' ring turns out to be worth $450,000 Ifeadi C. 14:59 Mashable, Zero Tech Blog Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsUbiquity6 CEO Anjney Midha is coming to Disrupt SF 2018Latch raises $70M for its apartment smart lock systemESA’s Aeolus mission launches to map Earth’s winds with lasersThe top 10 startups from Y Combinator’s Demo Day S18 Day 2Google’s G Suite apps and Calendar are getting Gmail’s side panelsHackers failed to hack into DNC voter database, says security firm