We purchased several Citrine crystals from a source in Brazil and have been faceting them over time, including this 6.8mm round gem, weighing 1.2 carats.  We then set the gem in a Sterling Silver Pendant which is one of Robert's designs.  The concept was to use "nails" that would have bent when removed from the cross. 
 
For this Pendant, we recommend an 18” or 20” Light Rope Sterling Silver Chain, #1120.
 
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.