Classical palmistry assigned each finger to a planet, and each planet governed a set of qualities that determined what a strong, well-formed finger in that position meant about its owner. This is the same planetary system that governed astrology and influenced which metal was thought appropriate for which jewellery — which is why gold, the Sun's metal, is conventionally worn on the ring finger.
The index finger (Jupiter) governs ambition, leadership, authority, and the ability to command respect — all things that tend to precede financial success rather than accompany it magically. A well-developed Jupiter finger was considered a sign of someone who could impose their will on circumstances.
The ring finger (Apollo/Sun) governs creativity, recognition, success, and public visibility — the conditions under which financial reward tends to accumulate. A well-developed ring finger was associated with someone who would be seen and rewarded for their gifts.
The little finger (Mercury) governs commerce, communication, and the ability to negotiate — more directly mercantile than the Sun finger, but considered a supporting quality rather than the primary driver.



