In fact, they cost the least among sapphire varieties, which include pink, yellow and blue sapphires. Another attractive feature of white sapphires is that they are highly durable. They rate a 9 on the Mohs scale, meaning they are very hard. Center stones come in all sizes and shapes, which means you will not be faced with a lack of options if you chose this as your ring stone. AAA is the highest quality rating a sapphire can get. Try to buy a stone that has this rating, to ensure a brighter and whiter color. The brilliance this offers will be out of this world. While you are at it, prefer a natural stone to a synthetic one. Pair it with yellow gold or rose gold for the best effect. The contrast is sure to blow the minds of everyone in the room. Compared to ring-set diamonds, white sapphire is very cheap. It will be whiter as well, assuming you rule out the D and E color options.