Pearl Calculators & Buying Tools
Free, practical tools for buying, sizing, and stringing pearls — count the pearls in a strand, find a necklace length for your height, convert weight to momme, estimate value, grade a pearl, and pick the right size.
Pearl Strand Length & Bead Count Calculator
Work out how many pearls a strand needs from its finished length and pearl size, with room for knots, spacer beads, and the clasp.
Necklace Length by Height Calculator
Find a flattering pearl necklace length for your height and the drape you want — collar, choker, princess, matinee, opera, or rope.
Pearl Weight (Momme) Calculator
Convert pearl weight between momme, grams, carats, and pearl grains, or estimate a round pearl's weight from its diameter.
Pearl Value Estimator
Estimate a pearl's value from a base price you set, scaled by size and multiplied by the type and grade factors you supply.
Pearl Grading Scorecard
Rate a pearl or strand on luster, surface, shape, nacre, colour, and matching to get a weighted score and a letter grade.
Pearl Size Recommender
Get a suggested pearl diameter in millimetres for the occasion and the wearer — from dainty everyday studs to a statement strand.