Precious Pearls Pearls come in a variety of colors like black and blush, though most of us like the traditional milky hue of white pearl. Pearl solitaire can be used as the center stone in engagement rings for a simple and classy approach. Bewitching Black Velvet A gothic inspired ring with a three-carat black diamond as the centerpiece accented by two red rubies on both sides and set within a white gold band can be quite bewitching and non-traditional. The Legend of the Mermaid You can customize your ring like a mermaid ring that features a diamond and platinum mermaid floating on a blue topaz wave with her hair flowing behind her. Twisted Rope Moissanite Naturally, colorless moissanite are the closest alternative for a diamond because of its sparkle. A vintage style cushion cut solitaire moissanite as the centerpiece with a twisted band would look so beautiful. The Trio Try using a trio of colored gemstones to make your ring more colorful. A center sapphire with rubies and yellow topaz as the side stones can make it a colorful and beautiful ring.