three x seven Jewelry
Ku "空" Necklace – 18kt Yellow Gold & Akoya Pearl
Ku "空" Necklace – 18kt Yellow Gold & Akoya Pearl
-Story-
Delicate gold lines form a triangular pyramid, with a pearl floating silently within.
As if light has settled into what should be an empty space. Beauty emerges not from excess, but from the balance created by emptiness.
"Ku (空)" embodies the harmony and serenity found within form, a testament to the elegance of space itself.
Type: Necklace
Pearl Type: Japanese Akoya Pearl (Saltwater)
Pearl Origin: Japan
Pearl Size: 5mm up
Pearl Color: White Rose
Pearl Quality: AA+
Pearl Shape: Round
Material: 18K Yellow Gold
Chain Length: 40cm (16 inch)
Production Location: Kofu, Yamanashi, Japan
Product Number: 37P12
What’s Included in the Price?
✔ Authentic Japanese Craftsmanship – Expertly handcrafted in Kofu, Japan, a city renowned for its fine jewelry artistry.
✔ Genuine Akoya Pearls – Carefully selected for their exceptional luster and beauty, ensuring only the highest quality.
✔ Premium 18K Gold – Made with solid 18K yellow gold, chosen for its durability and timeless appeal.
✔ Exclusive Design – A unique and sophisticated form that blends modern aesthetics with classic elegance.
✔ Quality Assurance – Every piece undergoes strict inspection to meet high standards before reaching you.
✔ Timeless Investment – Designed to be cherished for generations, with a style that never fades. Each pair is not just jewelry, but a wearable piece of art, crafted with precision and passion.
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Authentic Japanese Pearl Restringing
- Entrust pearls to Japanese experts for superior restringing.
- Utilize tradition-rich techniques for unmatched quality.
- Fast same-day service for items up to 18 inches.
- Unique blend embodies Japan's legendary pearl heritage.


Beyond Beauty, a Timeless Connection since 1967
Since 1967, Miseki Jewelry in San Francisco's Japantown has been crafting timeless connections with elegant, heritage-rich pieces. Owned by Asuka Saito, a GIA and CPAA-certified jeweler and color specialist, we also have a GIA-certified appraiser on staff to ensure each creation celebrates and enhances your life's radiant chapters.