Engagement Rings with Colorful Stones\\nFrom a hint of color to all-out red, hued stones are all the rage\\nA string of diamonds runs through a pink sapphire set in 18-kt white gold. Kwiat, $2,700–$3,200, 212-725-7777.\\nA 5.2-carat garnet is set in 18kt yellow gold and accented with .72 carats of round diamonds. Jude Frances, $3,820, Neiman Marcus, 888-888-4757.\\nA white- and rose-gold band embellished with .78 carats of round diamonds and .16 carats of pink diamonds give this piece just a touch of color. Simon G., $3,960 (without center stone), [simongjewelry.com](http://simongjewelry.com/).\\nTwo round sapphires totally 1.5 carats add a splash of color to this round center diamond set in platinum. Diana Classic,$3,065 (without center stone), [diana.com](http://www.diana.com/).\\nThree lemon quartz totaling 10.03 carats are outlined by .41 round brilliant diamonds set in 18kt white gold. Natalie K., $2,805, [nataliek.com](http://nataliek.com/).\\nA 1.79-carat black diamond is set in rose gold and accented with two .36-carat side stones and .12 carats of colorless pavé diamonds. Karen Karch, $6,800, [karenkarch.com.](http://karenkarch.com/)\\nAn earth-conscious blue cushion-cut sapphire is outlined with a halo of pavé diamonds. Brilliant Earth, $3,000 (18kt gold), $3,400 (platinum), [brilliantearth.com](http://brilliantearth.com/).\\nA cushion-cut orange citrine stone sits on an 18kt-yellow-gold setting. Tiffany & Co., $1,350, [tiffany.com](http://www.tiffany.com/).\\n1.19 carats of diamonds outline three yellow diamonds that sit on a platinum and 18kt-white-gold band. Martin Flyer, $33,160, [albertsmyth.com](http://www.albertsmyth.com/).\\nA princess-cut turquoise stone is set in 18kt white gold and surrounded by round diamonds. Jude Frances, $1,280, Neiman Marcus, 888-888-4757.