Okay, so these birthstone paperweights are seriously gorgeous! You get a full set of 12 different K9 crystal glass diamonds, each one measuring exactly 40mm in diameter (that's about 1.5 inches for my US friends). The round brilliant cut they use gives them that authentic gemstone sparkle that catches the light beautifully from every angle. I've been using them as decorative pieces around my house - they look amazing on bookshelves, coffee tables, or even as fancy paperweights on my desk. The clarity of the crystal is impressive - they've got that real diamond-like appearance without the crazy price tag. They're heavy enough to actually function as paperweights but not so heavy that they're difficult to move around. I used a few for my sister's wedding centerpieces and everyone kept asking where I got them! They come in this nice presentation box that makes them feel really premium, and they make fantastic gifts for pretty much anyone - from office mates to family members. The 12 different colors represent each birthstone month, so you can mix and match or display them all together for a rainbow effect. They're versatile enough for everyday home decor but special enough for parties and ceremonies. Seriously, if you're looking to add some elegant sparkle to your space or need unique decorative elements for events, these crystal diamonds deliver big time for such an affordable price. They've become one of my favorite decorative finds recently - simple but so effective at elevating any space they're in!