Lady's Platinum Diamond Engagement Ring. Ring Size: 6 1/2 (Can be Resized to Fit Most Any Finger) Contains: 1 Oval Shape Natural Diamond. Weight: 1.70ct, Color: Colorless (F), Clarity: SI2. 4 Round Brilliant Cut Natural Diamonds. Weight: 0.12ct, Color: Near Colorless, Clarity: I2. 12 Round Brilliant Cut Natural Diamonds. Weight: 0.12ct, Color: Near Colorless, Clarity: I1. 16 Princess Cut Natural Diamonds. Weight: 0.72ct, Color: Near Colorless, Clarity: SI1/SI2. Want to get engaged on a tight budget? Here is a beautiful hunk of flash. This ring comes with two laboratory certificate - one from the IGI and one from the GIA. F-Color, SI-2 Clarity and in a handmade platinum mounting.