you can add your preferred colour in the personalisation box here is a guide to determine your size https://zalimart.tumblr.com/post/643364716294635520/ring-size-chart-help Handmade items do have small flaws and imperfections and even tho it makes them beautiful and unique, they can alter the shape (thus the size). I would advise to upscale if needed. All items are unique so colours and shapes never come out exactly the same! don't forget we love every shape and colour ;) Artsy Multicolor Rings For Gifts, Artsy Multicolor Rings As Gifts, Polymer Rings, Polymer Clay Ring, Clay Rings, Yellow Rings, Blue Stone Ring, Plastic Ring, Linking Rings