100% natural untreated sapphire are DARK NAVY BLUE - these are TINY stones 5-8mm please read title and all of the description. Dainty Tiny Stones are about 5-8mm and come in different shapes Beautiful raw genuine blue sapphire have been made into a beautiful raw stone necklace. This necklace contains natural untreated blue sapphire and is shown paired on a 16" 14k gold filled chain This birthstone necklace will make the perfect September birthday gift for that someone special, because the gems are raw it makes it so unique. Also a great gift for anyone who loves blue sapphire jewelry. Handcrafted Raw Sapphire Necklace Beautiful September Birthstone jewelry gift High quality genuine raw sapphire Raw stones offer stunning unique characteristics.