I love this necklace.  It look amazing and feels lovely too.

Metal:  Sterling Silver Coated in 14ct Gold 

Semi-Precious Stone - Blue Topaz.  This also comes in White Sapphire (£385)

Dimensions:  The Pearl is approx. 8mm in diameter.  The Circle is approx. 20mm in diameter and the width of the circle is approx. 3mm.  The Chain is 16-18" in length.  The overall drop is approx. 16mm