Certified waterproof, our '18th Birthday' Waterproof Gold Sentiment Necklace makes the ultimate milestone birthday gift. Made from durable 18K Gold PVD Coating and featuring two complementing charms that you can engrave with up to 8 letters, numbers or symbols, to make it uniquely theirs. This style is perfect for pairing with the matching bracelet. Certified 100% Waterproof by The Birmingham Assay Office Designed and Personalised in The UK 2 Year Colour Warranty (not available on engraved pieces) Comes in a Katie Loxton Reusable Suedette Jewellery Pouch Free Gift Bag With Order