Turquoise Halo Bolt Pendant

14kw gold "halo bolt" half turquoise enamel / half diamond circle pendant with slanted marquise at center and attached chain .29cttw G-H, VS2-SI1
14kt white gold
1=.14ct marquise cut diamond
16=.15cttw round brilliant cut diamonds G-H, VS2-SI1
on 16-18" adjustable 14kw gold cable chain
approximately 21mm diameter