Hi! I'm Gillian, a GIA Gemologist for the Rare Carat team. Thanks for reaching out.
I read the GIA Report for the following diamond: GIA 5131724721 Round 1.75 CT H VS1. I rejected this diamond due to the age of the GIA certificate and the quality of the diamond's cut.
I learned that GIA wrote the report for this diamond in 2011. I suggest asking the retailer to send it back to GIA for an updated report. Or take the diamond to a reliable local appraiser to ensure that the diamond is still the same.
The diamond's cut grade is Very Good, which, ironically enough, isn't good. At Rare Carat, we recommend the highest cut grade from GIA's 4Cs - Excellent. That way, you get light and sparkle in every direction.
Think of GIA cut grades as letter grades. Excellent is A, Very Good is B, Good is C, Fair is D, and Poor is F. To ensure you have the fire, sparkle, and scintillation you're looking for, you need to stay at Excellent.
The crown angles, the entire area above the girdle, are pretty lean. The crown is flatter than an ideally cut round, so the facets do not reflect the light to the eye. The depth is also a touch low.
This diamond has a VS1 grade for clarity - this grade shouldn't concern eye-visible inclusions. The diamond's clarity is based on a small cloud (a group of microscopic crystals). I don't see an image here. My recommendation is to see an actual photo or get an unbiased opinion from your retailer.
I recommend finding another diamond with a better cut. Feel free to reach out if you have any questions.