This is a sterling silver four-pronged shin pendant with a crown on the side. The colours of the cubics can be chosen.
"And these Words which I am commanding you today shall be in your heart...bind them as a sign on your hand, and they shall be as frontlets between your eyes". (Deuteronomy 6:4,8)
The four pronged shin is found on the Tefillin worn by some when praying the "Shema" found in Deut 6:4 as well as other daily prayers.
Large pendant dimensions: 4cm x 3.5cm
Small pendant dimensions: 3.3cm x 2.8cm