Hawk’s Eye — deep blue-grey with shifting bands of light.
The cool counterpart to Tiger’s Eye — the same chatoyant lustre, in a deeper, more reserved tone.
Why this material
- Blue-grey chatoyant stone with bands of light that move with the hand.
- Long associated with insight, perspective, and clear sight.
- Hard and durable — built for a lifetime of daily use.
A Case as Crafted as the Seal Within.
Made exclusively for us from genuine kimono fabric, each case is patterned with a traditional Japanese motif — animals, flowers, flowing water — a small work of art that honours the seal it holds.
Who it’s for
Suited to executives and collectors, and a striking gift for those marking a step into greater responsibility.
Hawk's Eye
KAMAKURA SIGNET — The Precious Stone Collection
precision-engraved in our Kamakura atelier — a workshop that has practised the art of the seal since 1898, through four generations of the Tsukino family. Each seal is precision-engraved by masters holding Japan’s First-Class National Certification in seal engraving — a distinction shared by fewer than one hundred artisans in the country — in the Tsukino Kissotai script that exists in no other workshop. Among the rarest materials we offer in a personal seal.
A one-of-a-kind work, carved once for a single name. Not a stamp to be used and discarded — an object to be owned, and passed on.

















