With GIA certificate. The ring is very pretty, comfortable and wearable but my heart belongs to antiques. The main stone is 1.2 ct, transparent, red. GIA rated the side diamonds as near colorless. They are eye clean and very sparkly, I can measure them if needed. The ring is solid platinum and a very generous size 6 - I'm size 6.25 and have no problems wearing it at the end of the day in the summer in Virginia, at almost 100 degrees and high humidity. The ring is in excellent condition, barely worn. Thank you for looking!