Simple, stylish, classic solitaire ring in size O which is US 7. I have a A rated Tanzanite solitaire ring myself however the colour of this gem is more purple and less blue than this gorgeous gem. I also have ring in sizes N (US 6 1/2 and R (US 8 5/8). If size other than O required please let me know at time of purchase. This natural tanzanite is an oval gem which is half a carat. Band is sterling silver which has 14K Yellow Gold overlay. The band is slender and would lend itself to resizing at least plus or minus 3 sizes at a local jeweller. Ring will be delivered in a small pouch. Please see my other items for gorgeous jewellery and accessories.