A modern good luck charm, this oval-shaped blue sandstone charm from pdpaola™ at zales is a look you'll want to wear with everything. Crafted in sterling silver with 18k gold plate the 10. 0 x 6. 0mm oval-shaped sandstone evokes the starry night sky with its shimmering and deep blue hues. Blue sandstone is believed to bring good vibes, positive energy, luck and prosperity to the wearer. Stays in place on your charm bracelet or necklace with a silicone-lined center add this sliding bead charm to your pdpaola™ cable chain necklace or bracelet, sold separately.