The circle is one of the rarest signs of palmistry. When it appears clearly, it almost always has a marked meaning, often linked to sight, perception, or creativity.
Rarity: Present in less than 5% of palms. Often confused with an island, a circle is completely closed.
On the mount of Apollo
It's its most favorable position: a circle on the mount of the ring finger is traditionally considered a sign of glory in the arts or luminous recognition.
On other mounts
On the mount of the Moon: a circle is associated with a water-related risk in classical reading. To nuance strongly with other signs, don't make it an obsession.
On the mount of Saturn: tendency to close in on yourself in difficult periods, to know to better manage it.
Circle or island?
The island is a circle placed on a line that interrupts that line. The 'true' circle is isolated, independent of the main lines. The distinction changes everything.
If you see a perfect circle on your palm, confirm it with a photo, it's rare enough to deserve a second look.