Raffaello sanzio, ritratti di agnolo doni e maddalena strozzi, 1504-06 ca. 05 mani

The sitter's hands are depicted resting against his dark doublet and vibrant red sleeves, with one hand placed upon a stone ledge. Two rings are clearly visible: a large rectangular dark stone on the index finger and a smaller red gemstone on the pinky finger. The image highlights the fine rendering of skin texture and the material wealth of the subject.

In the intellectual climate of Renaissance Florence, the wearing of specific gemstones was often linked to lapidary traditions and Neoplatonic beliefs in the 'virtues' or astrological powers of stones. These objects were sometimes viewed as talismans capable of attracting favorable planetary influences, as described in the works of Marsilio Ficino.