Stone: Opal Color: blue Number of stones: 1 Total carat weight: 0.45 ct Stone size: 5 mm diameter Precious metal: 925 silver Weight: 0.75 g silver – Total weight: 1 g Stone cut: cabochon Setting: bezel setting Shape: round stones Classification: amorphous (mineraloid) Mohs hardness: 5.5-6.5 Density: 1.9-2.5 Origin: Australia, Peru, Brazil, Guatemala, Mexico, USA, Ethiopia Care advice: opal is extremely fragile. It’s recommended to clean it with a soft, slightly damp cloth. Avoid soaking opal in water; some opals can lose their colors or iridescence. Do not expose opal to strong light or extreme heat: it is sensitive to heat and can crack or discolor. Also avoid exposure to soap/shower gel, cosmetics (perfume, etc.) or household products, which will irreversibly damage the stone. When you’re not wearing your opal, it’s recommended to store it in an individual pouch to protect it from scratches. Photos are non-contractual.