The pendant for this necklace is a pill box box measuring: 5 x 4.8 x 3.5 cm.(2" x 1 7/8" x 1 1/4"),  made from a hand-finished, tagua nut (vegetable ivory). 

I  inlaid a 20 x 18 mm. unakite cabochon on top of  the lid.  

The swivel lid closes tightly to keep your treasures safe.  

Its  inner chamber’s dimensions are approximately: 3 x 3.8 x 2 cm. (1 1/4" x 1 1/2" x 3/4"). 

For the neckpiece, I strung large, faceted, serpentine rondelles;  banded agate, tiger's eye, jade, buffalo horn and bone rounds; and faux wood beads on sturdy, braided, artificial sinew. 

The length is adjustable; from: 23.5 cm. (9 1/4"), up to: 95 cm. (37 1/2").  

Just slip it over your head and slide the  buffalo horn, lock bead to desired length.

The necklace also comes with a storage pouch for safekeeping.

Tagua nuts are a renewable product of the rain forests of Central and South America. They are a viable alternative to animal ivory.

The last picture shows a raw tagua nut, so you  have a better idea  what I start with.  

Each nut has its own unique pattern, similar to a fingerprint.