Looking for a unique and playful touch to your jewelry collection? Check out Kosznik Jewellery necklaces!. Handmade in Dun Laoghaire with sterling silver, these necklaces can also be customized with birthstones and lengths. Spice it up with black rhodium or gold plating, or even real gold. Each piece is one of a kind and made especially for you, so please allow a week for fabrication.