Adjustable from 18\\\" to 17\\\" to 16\\\" via small station loops. Style: Circle. Colour: Yellow / Clear. Material: 9ct Gold / Diamond. Condition: New. Size: 18 in. Brand: . Birthstone: April. Gender: Female. Age group: Adult. Necklace style: Collarette/Necklet. Pendant style: Diamond Set. Department: necklaces. William May has been involved in the British jewellery industry since 1825 and we\\\'re extremely proud of our rich near-200 year heritage. As an independently-owned company, we supply a vast array of exquisite new, pre-owned & vintage jewellery that you simply won\\\'t find in a high street store. New 9ct Yellow Gold Diamond Set Double Circle Necklace - Female - 9ct Gold / Diamond - Yellow / Clear - Size: 18 in