Back in the 1950s, then Congressman John F. Kennedy proposed to his girlfriend, Jackie Bouvier, with an engagement ring encrusted with a diamond and an emerald. The choice was unusual, but the remarkable unique piece became unforgettable for its beauty and intensity.

In these recent times, the emerald engagement ring is poised for a comeback, according to Town and Country Magazine, as brides-to-be are choosing to veer off from traditional styles in favor of personal choices. 

"Today's bride is looking for something timeless with a twist; something extraordinary that still embodies her distinct sense of style," designer Anita Ko told Elle.

Emerald as a gemstone symbolizes love, intelligence and eloquence, according to Jewelry. It represents hope, rebirth, faithfulness and continuity, according to Brilliant Earth. During the time of the Romans, it was believed that an emerald stone soothes the soul.

While emeralds traditionally mark 20th and 35th wedding anniversaries, their popularity in bridal jewelry has slowly been emerging this decade. After all, there is no written law that requires men to present strictly diamond engagement rings to their future brides, according to The Huffington Post.

Although an emerald generally costs less than a diamond, its deep rich color is just as gorgeous on the fingers. With the right design, the ring pops and captivates the eye, which is why it's paramount to choose the best shade of green for the engagement ring. The deeper the color, the more valuable the gemstone, according to Jewelry.

Emeralds may be used as the center stone or the accent to the diamond, and as far as the designs go, and the only limitation is one's budget.

Below are some samples of emerald engagement rings, including some owned by celebrities: