This stunning lightweight Women Sterling Silver Celtic Knot Triquetra with Emeralds Necklace Pendant and 18 inch (45 cm) Sterling Silver chain – Irish Jewellery has a slightly domed shape. It is decorated with an interlaced Celtic pattern and a green CZ stone cross. The piece also has a decorative bail. he Necklace comes together with an 18 inch (45cm) long Sterling Silver 925 chain, all beautifully packaged into a nice jewellery box. This necklace is the perfect gift for special occasions.