This makes oval diamond rings an ideal choice for women with small fingers. Customers who are planning to buy oval diamond engagement rings will have to pay attention to the length to width ratio of these rings. If the length to width ratio of your preferred diamond ring is higher, then it means that the ring will be a bit skinnier and longer. On the other hand, oval diamond rings with lower length to width ratio are usually circular in shape. Jewelers and diamond cutters usually advise customers to look for oval diamond rings with a 1.3 to 1.7 length to width ratio. Even though oval diamond engagement rings are very rare when compared to princess cut and round diamond rings, they are still available to customers at cheap and affordable prices. This means that oval diamond rose gold engagement rings are one of the best engagement ring choices available to budget shoppers.