I am buying a lab 2.5 carat diamond, vs1, colour D, ideal cut
I am being told by the jeweller that an ideal cut is actually an excellent cut, and it is how they measure an excellent cut or a tolerance that they use when grading.
They are offering a free assessment from any appraiser to verify as long as it is local that they can take the diamond to so I was thinking of this one based on reviews:
imperialgemlab.com
located in Vancouver, BC, let me know if there are any other suggestions you'd suggest.
I had a hard time finding any content on an excellent cut compared with an ideal cut so I was hoping someone could help clarify this for me as I am very new and was looking at engagement rings for the first time.
I saw there was the Ideal Scope test and HCA test which I can use, but I do not have any certificate numbers, so I am not sure if I have to request that or if that is something after I decide to purchase the ring.
I saw Price Scope has a lot of resources so I have been reading a lot but would appreciate any advice on their thoughts on the above.
I am being told by the jeweller that an ideal cut is actually an excellent cut, and it is how they measure an excellent cut or a tolerance that they use when grading.
They are offering a free assessment from any appraiser to verify as long as it is local that they can take the diamond to so I was thinking of this one based on reviews:

About - Imperial Gem Lab - Experts in Jewelry and Gem Appraisals
Imperial Gem Lab - Experts in Jewelry and Gem Appraisals. Over 36 years of experience providing diamond confirmations and appraisals for insurance.

I had a hard time finding any content on an excellent cut compared with an ideal cut so I was hoping someone could help clarify this for me as I am very new and was looking at engagement rings for the first time.
I saw there was the Ideal Scope test and HCA test which I can use, but I do not have any certificate numbers, so I am not sure if I have to request that or if that is something after I decide to purchase the ring.
I saw Price Scope has a lot of resources so I have been reading a lot but would appreciate any advice on their thoughts on the above.