Variants of a mold are catalogued separately, so each one has its own sets and minifigs. Check these too if something you expect is missing here.

• 46844 Clikits Icon Accent, Heart 2 5/8 x 2 5/8 this part is a mold of it
• 46844a Clikits Icon Accent, Heart 2 5/8 x 2 5/8 this part is a mold of it