A DIAMOND SINGLE STONE RING

Details
A DIAMOND SINGLE STONE RING
Set with a rectangular-cut diamond weighing approximately 6.61 cts., flanked on each side by a bullet-cut diamond, mounted in platinum (with an expandable shank); and two gold insert mounts, one enhanced by circular-cut diamonds
With certificate 10175754 from the Gemological Institute of America stating that the diamond is I color (near colorless) and VS2, accompanied by a working diagram indicating that the stone may be improvable (3)