Whatever you wish to wear will no doubt complement the beautiful blue of a sapphire. For elegant-casual, match a gold necklace with a subtle sapphire pendant with a white shirt or neutral tone. A pair of sapphire and diamond earrings in a regal halo setting with matching sapphire rings is an elegant choice for formal wear like evening gowns. Gold rings with sapphire can also elevate a cool and casual style, like blue jeans and a leather jacket or a little black dress, accenting the outfit without overpowering it. Sapphires work well with other shades of blue and vibrant citrus tones, and look especially beautiful when paired with metals like white gold and yellow gold.