The pieces grouped for success are the yellow ones. Citrine leads this collection, followed by tiger's eye, yellow agate, and the occasional garnet or peach sunstone — the colors that read like sunlight and metal rather than like stone.
Why yellow
It is the simplest grouping in the shop, and the least arbitrary. The yellows are the ones that hold a warm tone in a dark room, which is where a wrist spends most of its day. Between citrine, tiger's eye, and yellow agate there is enough range to cover pale lemon through to a toasted amber.
Courage and forward motion
Two readings show up in the names. Courage appears on the tiger's eye pieces and on the agate; success on the citrine and on the koi. They are not the same claim — courage is about the moment before, success about the direction after — and the pieces are separated accordingly.
The koi is the third form here: a fish that swims upstream, cut in white jade or in enamel on cord. It is the only piece in this group that carries the idea in a figure rather than in a color.
Choosing
Take the yellow you can wear in low light. If the color is the point, the citrine pieces give the widest range. If it is the idea, the koi carries it without any stone at all.