Aka no Kyōkai Necklace
Aka no Kyōkai Necklace
Aka no Kyōkai Necklace
Aka no Kyōkai Necklace

Aka no Kyōkai Necklace

$169.98
$195.99

[ 赤い鼓動 - Red Heartbeat ]

the boundary where calm meets intensity

Sizing

One Size

Gem set: 10mm (0.4 inch)

Necklace: Adjustable from 15-18inches, intended to rest close to the neckline.

Clasp: Lobster clasp.

Material

6.5–7mm AAA Akoya Pearls
Selected from AAA-grade Japanese Akoya pearls, each is valued for its depth of luster and refined surface. Subtle variations in tone and form are preserved, allowing each pearl to remain distinct.

 

Mozambique Ruby
Chosen for its rich, saturated red, each ruby is cut with restraint—revealing depth and structure without excess. Natural inclusions and tonal variation are part of the stone’s character.

How to wear

Worn close to the body, where movement reveals subtle shifts in light and form.
Best styled with restraint—allowing each element to remain distinct.

Limited Stock

  • Current batch is available in limited quantities and ready to ship

  • Complimentary 14-day return & exchange

  • Complimentary 14-day warranty & damage protection

RELEASE

Each piece is produced in limited quantities.

 

Availability reflects the pace of sourcing and making, rather than demand. Once a release is complete, it may not be repeated in the same form.

SHIPPING & PROCESSING

Orders are prepared with care and typically dispatched within 5–7 business days.

 

All shipments are fulfilled via USPS Ground from our operation studios in New York City and Florida. Tracking details are provided once your order has been dispatched.

CARE

Pearls and natural stones require considered handling.

 

Avoid prolonged exposure to water, chemicals, or abrasive surfaces. After wear, gently wipe with a soft cloth and store separately to preserve luster and surface integrity.

WARRANTY AND PROTECTION

Each piece is inspected prior to dispatch.

In the event of a confirmed defect, we will provide a replacement or refund. 

 

Natural variations in tone, surface, or form are inherent to the materials and are not considered faults. Please see our FAQs page for the full policy.

GIFTING

All pieces are presented in signature packaging.

 

If your order is intended as a gift, no pricing details will be included. A note may be added upon request.

Designed by Aiko Tanaka

Perfection was never the pursuit.
Pearls form slowly —
 layer by layer, shaped through time, patience,
 and the quiet rhythm of nature.

Gemstones carry their own journey,
 shaped by the earth and revealed through light.
At Aiko Tanaka, we believe jewelry should hold that same spirit.

 

Pieces where pearl and stone meet in balance —
 not made simply to be worn,
 but to be lived with.

Aiko Tanaka

Founder

About Aiko

To honor the waters and traditions behind our materials, 10% of profits support Loggerhead Marinelife Center

Perfection was never the pursuit.
Pearls form slowly —
 layer by layer, shaped through time, patience,
 and the quiet rhythm of nature.

Gemstones carry their own journey,
 shaped by the earth and revealed through light.
At Aiko Tanaka, we believe jewelry should hold that same spirit.



 Pieces where pearl and stone meet in balance —
 not made simply to be worn,
 but to be lived with.

Aiko Tanaka

Founder

About Aiko

Our Community

Our pieces, worn by you.

Aiko Tanaka

Pearl Farm Story

A Journey of Pearls, Shared by Time and intention

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