Go to the report concern button and have this moved to RT.
It would help if you post guidlines. What carat weight are you trying to achieve? What shape do you/ your gf prefer? Will 40K include the setting? Or just the diamond? Are you going for some classic? Vintage? solitare? etc....
Thank you so much for detailed reply. I am little bit worry about leaving my big stone there. Will they switch my stone with a lower quality one? Or if they source one for me. Can I really trust the stone is the one they described? I am not an expert in diamond.
The name of the vendor means zero.
Cut quality is king.
Learn about cut.
At the top of this screen click on the tab for Knowledge.
Then select Advanced Tutorial.
IMO, the more you learn about cut the more you will learn how it's smart to shop at good Internet vendors with great cut, prices policies and services ... such as ...