Every once in a while we hear about some thrift shopper hitting the antique lottery, stumbling upon a Picasso at a local Volunteers for America or unknowingly buying a Jackson Pollock painting at Salvation Army. On Friday, another consignment shop frequenter has struck gold. According to The Charlotte Observer, a woman from North Carolina unwittingly bought "Vertical Diamond," an abstract painting by Russian-born and New York-based artist Ilya Bolotowsky valued at $15,000-$20,000 by Sotheby’s, for the bargain price of $9.99.