When it comes to Pear shaped diamonds and the 4Cs, prioritize cut and clarity. Pears feature a large face and facets, so prioritize these first for maximum brilliance. They may possess a slight "bow-tie" effect in its center, which is the dark shadow that appears from the face-up. The degree of “bow-tie” severity varies so you can base your decision on personal preference.
Color depends on the metal setting you choose; yellow gold engagement rings work well with near-colorless Trillion cut diamonds, while platinum and white gold pair best with colorless stones.
Pear shaped diamonds appear larger than other diamond shapes of the same carat weight, so carat should be based entirely on personal preference and the engagement ring budget you have set.