Golden Butterfly Necklace by Pia Glassworks. Golden butterfly: it is a one-of-a-kind piece, handcrafted with the flameworking technique in solid glass and golden details through a technique that is made with gold. Made of Borosilicate glass. SPLITOne size, butterfly approximately 5 x 5cm SPLIT This item is in stock and will be shipped within 7 working days from Spain. EU shipping: £10 Global shipping: £15