There are four criteria for evaluating the quality of pearls: σχήμα, μέγεθος, luster and color. The shape of the pearl is of course the rounder the better; the larger the size, το καλύτερο. When the pearl weighs more than ten carats (περισσότερο 2 γραμμάρια) and is round again, it is a rare treasure! Ο […]