Bought in Seychelles when we lived there a number of years ago, from a fine jewellery store on Eden Island/Mahe. It has never been worn.

The chain and coco de mer charm are solid, not hollow and total weight is 8.18. Length is just under 7.5". Please see photos for measurements of the charm. Hallmarked 925 and Hallmarked RC. Please refer to photos

Extremely rare, you'd have to fly to Seychelles to find something like this!