This beautiful and affordable 14 K. white gold Solitaire Ring with Natural Purple Amethyst is sure to put a smile on her face. The sizable 5mm round cut amethyst is a nice 0.65 carats. This stone is noticeable without being "too much" when worn on the ring finger. If you are looking for an unconventional engagement ring, this one is sure to please. Amethyst is also the birthstone of February born babies, so it makes a beautiful birthday gift too. Instead of yellow gold, you can choose from white or rose gold options too. This ring is simple, but it is beautiful in its solitaire setting.