This is a very cute little ring. The stone changes color depending upon the angle that you are holding it at. The color of the diamond varies from dark blue to greenish blue. The ring is made into a knot, which is an unusual design. The pink gold that it is made of catches the light very nicely. I would recommend this ring to anyone who wants to try a new look or likes to collect unusual pieces of jewelry. Have fun and enjoy it!This ring is absolutely gorgeous! For me it is the perfect Valentine's Day present from my other half.The rose gold just glows with a rosy-pink warmth; the delicate band is elegantly formed and the .20 blue diamond solitaire is larger than I thought it'd be, but not garishly-so by any means. This piece is elegant, classic, sophisticated, comfortable, and unique, this ring is a charming surprise. The fit is true to size; mine fits perfectly.The shipping was fast and the ring was beautiful, exactly as pictured, and fit perfectly, especially since I have very skinny fingers so it's very hard to find rings in such a small size. It was also a great deal considering blue diamonds can be outrageously expensive, and the rose gold color made it even more unique and complemented the teal color of the diamond very nicely; would definitely recommend this seller and do business with again!I have two of these and they are a little different due to the setting of the stones. One looks larger than the other, but I see in closer inspection it is an illusion. Love the ring style though, a love/sailors knot that rises a bit up. Easy to wear every day and the rose gold is really pink. I wouldn't hesitate to buy a third.I am so delighted with this ring! It is a gift from my daughter and arrived a couple of days earlier than expected. The picture of it on Amazon doesn't come close to showing how dainty it is, and how deep the color of the stone! Now, if I can only find matching earrings!Wonderful ring