How To: Pick an Engagement Ring and Gemstone

How to Measure Someones Ring Size (Secretly!)

There are a few ways to measure ring size, but this is our favorite: Borrow one of the rings that your significant other already wears (you can grab it when he or she takes it off before going to bed) and gently press it into a bar of soap. Then, just match the imprint to a ring size chart. Or, even easier, bring the bar of soap right to the jeweler. Just make sure to wash and return the ring when youre done.

How to Choose the Right Gemstone

Theres a lot to consider here. If you're looking for a diamond, most jewelers will speak in terms of the "four C's" (cut, color, clarity, and carat), but you should also address details like her hair color and personal style. If your bride-to-be is fashion-forward and loves to stand out from the crowd, she might love a colored gemstone. Even if shes a little more on the traditional side, adding a colored gemstone as a secondary stone in a traditional diamond engagement ring is becoming a popular option among many brides.

But which gemstone will look best on her? A good rule of thumb is to go by skin tone. Gemstones like sapphire, garnets, and rubies look beautiful on "cool" skin, which usually features rosy undertones and bluish colored veins. Earthy-hued gemstones in coral, peach, green, and turquoise flatter "warmer" skin, which has greenish colored veins and yellow undertones.

How to Choose the Perfect Gift for Your Bride

One of the most romantic wedding traditions is to surprise your fiance on the wedding day with a small gift. We love the idea of commemorating the big day with jewelry engraved with the date or a love knot ring that symbolizes your commitment. The number one thing to remember is to stick to timeless, sentimental pieces.

For more tips, check out Buzzfeed's roundup of handy diagrams. When you're ready to shop for any occasionnot just weddings and engagementscheck out Heirlume for a personalized jewelry shopping experience.