The biggest misconception Wegman sees when people buy diamonds is understanding the four C's: cut, clarity, color, and carat weight. She said most people want a colorless diamond without inclusions.

Before purchasing an engagement ring, consider the four C’s: color, clarity, cut and carat. Color: The most popular diamonds have no color. The whiter the diamond, the higher the cost and grade.

AUSTIN, Texas — AUGUST 13: Lab diamonds are grown at the Clarity facility on Aug. 13, 2024 in Austin. (Danielle Villasana for The Washington Post)© Danielle Villasana/for the Washington Post ...

A platinum ring centered with a 19.14-carat emerald-cut diamond with D-color and VS1 clarity. The main stone is flanked by several baguette-shaped diamonds. Its estimate is $700,000 - $1 million.