This diamond is of incredible quality. Though I've looked everywhere for the documents, I can't lay my hands on them, but I know the following: it is 1.57 carats and round brilliant cut for maximum sparkle. I believe it is VS1 (the flaw is to the side and so small it's really hard to find), and either an F or G in color. A stone like this retails from $10,000 - $18,000.
This gorgeous diamond's setting sets it off to perfection. It is a D. Vatche design: platinum round X-Prong with .5 carats of channel set round diamonds. To get this stone in this setting at retail would run you anywhere from $15,000 to $25,000.
A matching eternity band of channel set round diamonds (1 carat total weight) is also available for an additional $800.
*note - images are of this setting, but are not the actual ring.