Floral Marquise Opal & Diamond Necklace in 9ct Yellow GoldA part of the Gemondo Floral collection, this 9ct gold necklace features 5 marquise cut opals and complemented by central diamond. This necklace sits just below the neckline. Chain measures 40. 5cm. Gemstone Information Opal is a beautiful stone renowned for its kaleidoscope of colours. This unique gemstone has been used in jewellery since antiquity and was treasured as highly as diamonds by the ancient Greeks and Romans. Opal is the birthstone for