Look-a-like: J. Crew Crystal Supernova Necklace

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Charlotte Russe Pink Gem Necklace: $8.50
Madewell Ice Cluster Necklace in Pink Taffy: $39.99 (Orig. $58)

Though not exact matches to the J. Crew Supernova Necklace that sold in the past for $128, the 'Pink Gem' and 'Ice Cluster' necklaces share a very similar cluster stone style, and for much less.