How to choose a marquise cut diamond: the ratios gemologists recommend, how to judge the bow-tie and outline, where inclusions hide, how big each carat looks and how to protect the points.

What a promise ring means, how the tradition grew from medieval posy rings, which finger it goes on, how it differs from an engagement ring, and popular styles including pear shapes.

What an emerald cut diamond is, why its step facets show inclusions more easily, which length-to-width ratios most buyers prefer, and how big each carat weight looks.

A clear comparison of hidden halo, halo and half bezel engagement ring settings: how each looks, how it affects apparent size and protection, and who each suits.

What a three stone engagement ring means, how to size the center and side stones in millimeters, which shapes pair well, and how lab grown and moissanite options compare.