This 14K yellow gold necklace features a 1.00 ct. tw. lab-grown blue diamond in a classic solitaire prong setting. Faceted round prong-set lab-grown diamond = 1.00 ct.; colour = Blue; clarity = VS1 Spring ring clasp closure Includes Gift Box Material: 14-karat yellow gold pendant; 14-karat yellow gold over sterling silver chain Imported Approximately 18in long It is customary to treat most gemstones to achieve enhanced colour and durability. Some of these treatments may not be permanent, and may require special care. Colour: blue