@ Kamalika,
Apologies, I am taking the liberty to address and answer you !
The so called necklaces or whatever for that instance are only a gesture for loving someone / an expression of love. It does not measure / define one's love !
Why we should care about those trivial things when Kushi has an ocean for herself, his love !
ASR is deeply, madly in love with Kushi. Please notice the massive transformation.