Oval Cut
Shape 
| Round | Princess | Emerald | Asscher | Pear | Marquise | Heart | Oval | Radiant |
Being an elongated round, oval cut diamonds displays a similar kind of remarkable sparkle like brilliant round diamonds. Oval diamond solitaire rings are popular because their elongated shape can help giving an illusion of having longer and more slender-looking fingers.
L / W = Length to Width Ratio
Optimum Oval Cut Ratio: 1.33 - 1.66 :1
Acceptable Oval Cut Ratio: 1.66 - 1.75 :1
It is your personal taste to choose the kind of oval cut diamond you want. Optimum oval shape has a length-to-width ratio of 1.33 : 1.66. Length-to-width ratio of 1.66 : 1 to 1.75 : 1 are generally acceptable.