Blue Pearls Make the Grade

Eyris Blue Pearls of Christchurch, New Zealand, has developed what it believes is the first color-grading system for cultured abalone mabé pearl. Eyris's managing director Roger Beattie noticed that he could group the mabés first by their dominant color-green or blue-then divide each group into two subgroups of predominant highlighting colors. The greens are highlighted by either gold and pink or by blue. Each category-the green-gold-pinks and the green-blues-is subdivided into "brights" and "subtles." The blue mabés are highlighted by either green or violet, and each of these categories is subdivided into "brights" and "subtles."

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