Our Pearls & Quality

Materials & Quality

All pearls we carry have undergone appraisal and certification by the Pearl Science Laboratory, the world's most authoritative pearl identification institution, and are provided with their respective certificates. Having a solid, verifiable basis for quality is the foundation of our integrity as a company.

Natural, Untreated Pearls

Our Commitment to Natural, Undyed Pearls

In the world of pearls, color treatment — including dyeing, bleaching, and heat treatment — is widely practiced as a standard industry process. This enhances market value but comes at the cost of a pearl's natural individuality and luster.

Since our founding over 20 years ago, we have consistently handled only natural, undyed pearls — pearls free from such treatments. By selecting only pearls beautiful enough without color adjustment, we deliver materials as nature intended. All pearls in our "Aurora" series come with a Pearl Science Laboratory certificate (SS/SQ type).

When we first launched these products, the market often labeled pearls as "Hanadama" regardless of quality. We have continued to pursue clear standards and transparent product development ever since.

Pearl Science Laboratory

About Our Identification Certificates

All pearls we handle are certified by the Pearl Science Laboratory, the most authoritative pearl identification institution in Japan and internationally. The certificate is not merely an accessory document — it gives our partners a verifiable basis for quality to present to their own customers.

SS Type

Highest Quality Series

Applied to white Akoya "Aurora Hanadama" & "Aurora Rose" and White South Sea Gold Pearl "Aurora Chakin." Certifies the highest standards across all six criteria: luster, nacre, shape, blemish, color, and size.

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SQ Type

Superior Luster Series

Applied to Akoya "Aurora Blue Rose." Certified under evaluation criteria focused specifically on luster, guaranteeing the natural coloring and brilliant radiance of blue-toned Akoya pearls.

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Amami Oshima Certificate of Origin

White South Sea Gold Pearls also come with a Certificate of Origin (Amami Oshima) issued by the Pearl Research Institute — verified by independent parties for both quality and provenance.

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Japanese Akoya Pearl

Akoya Pearl

High-Quality Natural Japanese Akoya Pearl

High-quality Akoya pearls showcasing the inherent beauty of natural, undyed material. All provided with a Pearl Science Laboratory certificate.

Aurora Hanadama (White Series)

A special designation awarded to the highest-quality white Akoya pearls in the Pearl Science Laboratory's identification and appraisal certificate.

Aurora Rose (White Series)

High-quality natural, undyed pearls second only to Aurora Hanadama, with a delicate rosy hue.

Aurora Blue Rose

Blue-toned Akoya pearls with naturally derived coloring from pearl organic matter, free from dyeing or color treatment. Extremely limited production makes these exceptionally rare.

New Zealand Abalone Pearl

Abalone Pearl

Iridescent pearls from New Zealand abalone — blue, green, pink gold, and beyond

Extremely limited in production and rarely found on the open market, abalone pearls are sourced through our exclusive procurement channels. No two are alike — their dramatic variations in color and pattern are precisely what gives them value. Whether a pearl moves you at first sight is entirely up to your own sensibility.

Shape Characteristics

Unlike the spherical Akoya and White South Sea pearls, abalone pearls have a flat back, giving them a hemispherical (half-dome) form.

Availability

We source through partnerships with local farms, but as production is very limited, stock levels fluctuate.

Amami Oshima Gold Pearl

White South Sea Gold Pearl

Amami Oshima White South Sea Gold Pearl "Aurora Chakin"

The "treasure of Amami," nurtured by extreme nature. A rare Japanese pearl with deep gold luster suited to the Japanese aesthetic. Among South Sea pearls distributed in Japan, Amami-produced White South Sea pearls account for only about 0.3% (Ref: Pearl Shimbun, March 11, 2021). Even among these, the top-grade "Aurora Chakin" appears at just 3–5% — an extraordinarily rare material. Cultivated over 6–8 years, the harsh subtropical winters slow the oysters' growth, producing an exceptionally thick nacre layer with fine texture, transparency, and luminous depth.

Top Grade / SS Type Certified

Aurora Chakin

Deep golden color layered with intense luster — when light catches the surface, a complex radiance emerges.

Two Certifications

① Pearl Science Laboratory Certificate (SS/SQ Type) — quality identification
② Pearl Research Institute Certificate of Origin — Amami Oshima provenance