
The most expensive diamond has been owned by H. Stern’s Venus which is amounting to $3.17 million. This diamond composed of 10-carat diamond necklace features a number of cushion, square and pear-cut diamonds set in 18k noble gold.
Users can select a diamond engagement ring, choosing metal, carat size, style and more then try it out for size on their own hand. To get the full effect you can put the iPhone on your hand and tilt it to get a sense of the ring's sparkle as it shifts. The image can be saved and e-mailed and posted on Facebook or Twitter. The user can then get the real thing using the app's "find a jeweler" function.