Affection in this collection is carried by two things that are not stones at all: a pair, and a flower.
Dragon and phoenix
The dragon and phoenix pendants are the oldest form here. In the pairing, the two figures stand for a couple rather than for an individual. They are worn as a matched set, and the jade they are cut from is matched as well — it is the only piece in this collection that is bought as two.
Peach blossom
Pink crystal peach blossom is the other reading. Peach blossom is the flower of a season rather than of a pairing, and the pieces here are worn for drawing something toward the wearer rather than for marking something already there.
The colors
The rest of the collection divides into two reds and two pinks. Garnet and Nanhong agate are the deep end — wine red and brick red, worn alone or with a charm. Rose quartz and pink crystal are the pale end, in plain beads and gold-filled wire. The pink pieces are the lightest thing in this group; the garnets are the heaviest.
Choosing
If you are buying for a pair, the dragon and phoenix set is the one made for it. If it is for yourself, choose by the depth of colour you want to wear — the rose quartz pieces stay quiet, the garnets stay red.