PETRI Pin
Enamel Pin Brooch — A Microscopic World at the Collar
Peering into the Microscope
PETRI refers to the petri dish — the shallow glass vessel used to observe substances under a microscope. The PETRI pin brooch takes its design from what one sees through that small opening: forms, colors, and structures not visible at normal scale.
We use the enamel technique — powdered glass layered onto metal and fused by heat — on metal pieces cut into circles of various sizes. Each circle receives its own layered color composition. We build up each piece by comparing transparency and opacity, differences in brightness, and the rise of contours, selecting each next color in response to what came before. The assembled circles maintain rhythm within the small forms.
Wearing PETRI
Pin it to a shirt collar, blouse, jacket lapel, or bag. When the placement changes, the way light enters the enamel surface also changes — each position gives a different view of the layered color. Handcrafted in our Tokyo studio, each PETRI brooch is a small window onto a world of color not normally seen.
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