How to choose a pear shaped engagement ring: ideal ratios, symmetry and bow-tie checks, which way to wear the point, and settings that protect the tip.
How to choose a marquise diamond ring: length-to-width ratios, judging the bow-tie, protecting the points with V-prongs, and what a Dutch marquise really is.
What causes the bow-tie in oval diamonds, how to tell a mild one from a problem, the ratios and proportions to screen with, and how to choose a good oval.