18ct Yellow Gold Whitby Jet Diamond Marquise Necklace. P1705. This exquisite necklace features a marquise shaped cabochon of the finest Whitby Jet stone, sourced directly from the north east coast of Yorkshire. The gem is accented by beautiful diamonds along the 18ct yellow gold bail which flows from the top and around the bottom. The pendant hangs gracefully from a fluid 18 inch long 18 carat yellow gold chain complete with a classic bolt ring clasp for easy wear. At C W Sellors, we have an expert team of gemstone and diamond specialists who handpick and grade each jewel to meet our high standards and a team of talented in house designers who combine their talents to bring you our exclusive Precious Gemstone collection. You can find other Jet pieces online and in store to compliment this necklace. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging. Matching items are available within this collection. Dimensions: 31mm x 12mm.  Diamond Total: 0.14 carats.