This is a handmade rhodonite pendant necklace featuring a pink gemstone with distinctive dark branching inclusions secured in a brown knotted macrame cord setting.

This specific handmade rhodonite macrame pendant necklace is valued at $43.54 from the artisan shop BohoGemsToWear on Etsy. 

In general, similar artisan-crafted rhodonite macrame jewelry pieces typically range from $15 to $85, depending on the size and quality of the natural crystal cabochon and the complexity of the custom knotwork