Raw Blue Sapphire Crystal Ring -This rugged sterling silver band shows off these gorgeous, raw sapphires. Unaltered and 100% natural, these cornflower blue gems have a divine beauty that's perfect for everyday wear. Trust us - you won't believe these are real stones! Sapphires are the birthstone for September, so why not make this piece your own? Shop now; our gallery is open 7 days a week and this could be sold by tomorrow! Stone: Earthmade Raw Blue Sapphire.