ok the answer is donna
The correct answer is Donna.
Explanation
Amy reached across the bureau and lifted the large bottle of Mystere perfume. "Notice anything wrong?" she asked Beth.
It took Beth several seconds. "Yes. It should be partly empty - unless this is the new bottle, the one you bought."
"No. Mine is downstairs with the rest of the presents. This bottle looks full because the bracelet was put inside. The gold and the yellow diamonds are camouflaged by the yellow perfume." The women followed Amy to the bathroom sink and watched her pull out the pungently fragranced bracelet.
Sue and Donna both turned to stare at Beth.
"Don't look at me," Beth protested.
"Well, who else could come back later and retrieve it?" demanded Donna.
"You," Amy replied. "You're staying the whole weekend, Donna, and your things have already been searched."
"That's ridiculous."
"Then how did a charm from your bracelet wind up on the bureau?"
"It must have come off while we were searching for the bracelet."
"Then it should have landed on top of the birthday card, not under it. I suspect the sharp settings caught on your own bracelet and pulled off the charm. You didn't even notice."