This is Christine Sadler's horseshoe necklace in 9ct yellow gold.
The horseshoe has a tiny heart at the top of each side of the curve. It has a handmade 9ct yellow gold loop that is soldered closed and it hangs on a 45cm long filed curb 9ct yellow gold chain.
The horseshoe measures 20mm long from the top of the loop to the bottom and 15mm wide.