Fancy yellow diamond ring

The round diamond of fancy yellow color weighing 1.86 carats, flanked by 2 emerald-cut diamonds weighing approximately 1.50 carats, the shoulders set with 2 tapered baguette diamonds, mounted in platinum, size 4 ½. 

Accompanied by GIA report no. 14605696 stating that the diamond is Fancy Yellow, Natural Color, VS1 clarity; together with original working diagram stating that the stone may be improvable.