I have been on a kick of making 4.25 x 4.25 square cards. It's nice cause they will fit in a standard A2 envelope, and still be something different. I love them!
For this one, I used a die from My Creative Time. It is 4x4. I put it on a 4.25 x 4.25 card base, and rounded the corners. Then I layered to hearts from Simon Says Stamp together with foam dimensionals. I had stamped the sentiment and heat embossed with white embossing powder. That stamp is also from MCT.
I tied a bit of white/gold twine into a bow and added some small black pearls.
I also cut a square to 3.75 x 3.75 and rounded those corners as well. Layered all together, I think it's a very pretty card. One that could be for anytime, not just Valentines Day...lol.
Here's where you can get these products.