2ct Old Mine Cut Diamond in Two-Tone Collet Setting The Allie 2.34 ring is an AB original design. The ring centers a GIA-certified 2.34 carat Old Mine Cut diamond of K color, SI2 clarity. The stone is set in a two-tone Platinum collet setting on an 18kt Yellow Gold tapered band. The ring is currently size 6 and can be resized! Why We Love It Antique Georgian collet settings are always an AB style inspiration. We created our Allie setting as an homage to the 18th-century jewels we so adore. A classic solitaire with an historic twist, the K color antique stone faces up incredibly bright and white, and blends seamlessly into the platinum setting. We love stacking and styling this two-tone beauty with our Chunky Band. The dimensions of the center stone are 7.82 x 7.13 x 5.66 mm. Click here to view the GIA report on the diamond.