If you weren’t aware, Americans are forgoing or delaying marriage more than ever before — a dramatic shift from societal norms a generation ago.

Numbers don’t lie: Over the last 50 years, the marriage rate in the U.S. has dropped by nearly 60%.

However, those deciding to get married generally start with an engagement, which includes purchasing an engagement ring.

What do you think of when you think of an engagement ring? Is it the classic gold band, single diamond solitaire? Or do you have a more modern image in mind, like the Duchess of Cambridge’s 12-carat Ceylon Sapphire ring in 18-carat white gold?

Whatever you have in mind, the diamond, although stunning, isn’t the only option for an engagement ring these days. If you’re unsure what type of gem you want in your engagement ring, here are five gemstones that may inspire you.

Diamond

We can’t talk about engagement rings without mentioning the mainstay in jewelry, the diamond. The traditionalist’s choice of gem, the diamond, can come in various sizes and styles and makes for timeless classics. That being said, diamonds are available in a spectrum of colors from the rainbow, including yellow, blue, green, or the ultra-rare but completely stunning pink diamond. If you want to go the classic route, use this 1 carat diamond rings guide to help you pick your perfect diamond engagement ring.

Sapphire

Pretty, durable, and aesthetically pleasing, the sapphire is a timeless classic for the engagement ring and shows no sign of slowing in popularity. Sapphire comes in second to only diamonds as the most popular gemstone for engagement rings. But did you know sapphires aren’t just blue but can come in various colors like diamonds?

Emerald

If emeralds remind you of the Wizard of Oz, you’re not alone. But you can capture some magic on your finger by wearing this green-hued gemstone in your engagement ring. Emeralds can range in color from yellow-green to bluish-green, with the forest green color being the one most people associate with this gem. High-quality emeralds are rarer than diamonds, making them more expensive. Remember that emeralds are softer than diamonds and need more conscious, gentle care, although they are still an excellent option for engagement rings.

Aquamarine

Aquamarine is a stunning pale blue semi-precious stone and is extremely popular for engagement rings. One factor in its popularity is the price; they are much more cost-effective than diamonds but still possess the same visual appeal. They are more durable than emeralds, and the colors are softer, meaning you can still wear a pop of color on your finger without it being overwhelming.

Moisonites

Moissanite stones are the lab-grown alternative to diamonds. With all the brilliance and durability, these stones can be a cheaper alternative to diamonds and give off the same appearance. This means you can choose a bigger, more eye-catching stone for less than a diamond but still retain that wow factor. In addition, due to the way they are cut – they have more intricate designs, and they reflect light better, making them visually stunning.

Of these five options, which one is your favorite?