Better Than Diamond offers simulants they have branded as Asha, and lab grown diamonds that are chemically identical to diamonds. This ring has a lab grown blue centre stone of .63 carats with a natural diamond halo of .25 cttw, set in palladium. Retails for CAD$3,883.48. Natural coloured stones would cost significantly more so if that’s what you’re lusting after, these could be a less expensive alternative.