We purchased a 10lb piece of Turkish "Stick" Agate from a source in Istanbul, Turkey.   This was "slabbed", or sliced like a loaf of bread.  We chose one of those slices and cut this 40x25mm oval Cabochon and encased it in a Sterling Silver banded Pendant.  Portions of this stone are translucant allowing light to shine through.
 
For this Pendant, we recommend a 24” Medium Rope Sterling Silver Chain, #1125.
 
Please be aware that the items in our photos are often much larger than actual. This is done intentionally to give you a closeup view.