Beautiful setting. Vivid tanzanite color. Two diamonds on each side of the stone. Platinum. I wore this ring on my right ring finger and no longer fits. I took it to a jeweler to ask them the size as I had it sized down when I purchased it. It’s a 4 1/2 with wiggle room to 4 3/4 (her words). I have the original paperwork and will send with the ring. Vintage as purchased in 2000. Retail says $1,600. My price was $576.