524 Broadway at Spring St, sixth floor. Subway: 6 to Spring St. This costume-jewelry brand is moving offices and hawking statement baubles priced at least 70 percent off retail. Silver-plated double-strand necklaces are lowered from $415 to $20 and semiprecious-stone bracelets are reduced from $240 to $15. Don’t miss the two-for-$5 bargain bins.