When it comes to choosing a length to width ratio for your Marquise Diamond, remember this decision is primarily based on personal preference. Above all, you want the diamond to look stunning to the naked eye and match the style of the wearer.
Popular length to width ratios for Marquise Diamonds range from 1.70-2.15. Length to width ratio can be determined by dividing the length of a diamond by its width. For instance, if a diamond maintains a length of 5mm and width of 3mm, the length to width ratio is 1.67.