548G Green Opal Crystal Sphere 2.7" Polished Green Opal Sphere Madagascar For Sale (#55055 Rare A+ Agate & Green Opal Sphere 2766.05 g Catawiki Green Opal Sphere With Pink Opal Inclusion Meditation Stone Healing 3.35" Polished Green Opal Sphere Madagascar (#257247) For Sale. The handmade 548G Green Opal Crystal Sphere is a striking gemstone, showcasing the mesmerizing hues of green typical of opal. Weighing 548 grams, the sphere features a smooth, polished surface that highlights its natural patterns and internal reflections, giving it an enchanting depth. Often associated with emotional healing and tranquility, this crystal is not only a captivating decorative piece but also a meaningful addition to any collection or space, radiating positive energy and soothing vibes. Its artisanal craftsmanship ensures that each sphere is unique, with individual characteristics that enhance its beauty and charm.