14K Yellow Gold Opal Inlaid Slipper (Flip Flop) Lever Back EarringsSolid 14K Yellow Gold Opal Inlaid Slipper (Flip Flop) Lever Back Earrings Item Number: GE2107 All Weights and Measurement are approximately and may vary slightly from listed information as below: Weight: 3. 2 gram Measurements: 32x8mm (L by W) Material: 14K Yellow Gold and Opal Opal, from the Sanskrit word upala, was the most valued stone during the Middle Ages because it was said that the stone held great luck and supernatural powers. Today Opal is