Akoya Pearls — Japanese Cultured Pearls
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Frequently asked questions
What is Hanadama Akoya?
Hanadama is the highest grade of Akoya — only 1-3% of harvest qualifies. Surface 95%+ clean, mirror luster, near-round to round, uniform overtone. Authentic Hanadama comes with PSL (Pearl Science Lab) certification from Japan.
Are Akoya pearls more affordable than South Sea?
Yes, typically 50-70% less for comparable size and grade. Akoya are smaller (5-9.5mm vs 9-16mm South Sea) and have thinner nacre (0.4-0.8mm vs 2-6mm), making them more accessible. They also have unmatched mirror luster.
Why are Akoya pearls so lustrous?
Cold Japanese winters slow nacre deposition, producing tighter, denser nacre layers. This is why Akoya have the highest mirror-luster of any cultured pearl. Pinctada fucata takes 10-18 months to produce a harvestable pearl.
Are blue-black Akoya pearls dyed?
Most "black" Akoya are dyed (the oyster does not naturally produce black). Natural blue-black Akoya exist but are extremely rare — characterized by a metallic blue-purple sheen rather than uniform black. Our certificates note natural vs treated.
Akoya pearls are the original cultured pearl, perfected by Kokichi Mikimoto in Japan in 1893. They come from Pinctada fucata, the small Japanese akoya oyster, and have the highest mirror-luster of any cultured pearl. The pieces here are sourced primarily from Japanese farms in Mie and Ehime prefectures, where cold winters slow nacre deposition and produce tighter, denser layers. Sizes available: 5-9.5mm typically, with the 7-8mm range most-requested for daily wear and 8.5-9.5mm for special occasions. Most stock is white with subtle pink overtones (the classic Akoya look); we also offer rare blue-black Akoya (natural color) and dyed black Akoya at lower price points. Each piece ships with origin certificate.