Bright in colour, loud in song Am I an island, or foreboder of deep down danger?

I'm the result of an infliction. Some try to hide me, others think I'm kinda sexy. I can be large or small. Some have me on their body, others on their soul.

bygone days in sepia tone views of roosts we’ve long since flown the sweet deceit of distance snares an ache for something no longer there

You can't marry me, but love me in a ring. I turn heads. I even leave some breathless. You sip me up and tell me I'm sweet, But when I get close to your lips, you pull away. What am I?

I’m earned, not bought, I shine without light. Pinned to your chest, I say who you are at a glance.