Small Ruthenium plate 'porthole' necklace. Item EM20R (9 ratings) From EMMA MOGRIDGE. Small Porthole necklace. Silver with Ruthenium plate. Inspired by twilight at sea. 16 mm dia. Chains 40, 45 and 55 cm. Dispatch 3-5 days. Free UK/EU delivery. £185.00 Length: [Choose]40cm45cm55cm (+£2.00) Quantity: at £185.00 each Add To Basket Exquisite jewellery created by Emma Mogridge in Devon - one of her range of beautiful jewellery. Find more, and all Just Exquisite jewellery, in the Website Shop.