To the best of my knowledge the cabochon stone is what we call Botryoidal Agate because of the look and texture of the stone. (See pictures) The word botryoidal is derived from the Greek word botrus, meaning "bunch of grapes," and refers to tiny crystals occurring in closely interlocking spherical masses or "bubbles" which often look like bunches of grapes or craters. The pin is a beautiful gold tone with fine intricate detail on the leaves that surround the large stone. Excellent quality and craftsmanship. Unsigned. Measurement 2-1/4" x 1-1/4" Conditiion great vintage-gift quality.
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