Two Tone Opal & Diamond Necklace

14K yellow & white gold opal & diamond pendant. 4.9 grams. One freeform cut opal, 17.5x9mm & 2 single cut diamonds, .05 total carat weight, VS clarity, FG color. Pendant is 1.25 inches in length & box chain is 16 inches in length. 
Appraised Value $1700