Ideal scope images help

[Eellee44]

Hello! Newbie here

Looking at buying a diamond online and I don’t really know if what I am looking at is good or not. I am happy with the specs and it’s given me a HCA score of 0.8.
Can you help? Do these images look good or not?

Thank you!!

 

[lovedogs]

I think it's the arrows that look really weird to me. THere's something going on, but I don't exactly know what it is. I definitely don't like it, and I don't *think* it's just a bad image, but I've been wrong before. @Karl_K and @flyingpig , care to help me understand why this looks so odd to me?

 

[Karl_K]

40.1 degreeu pavilion angle is not good for a ring and makes for weird images.
They are computer generated based on scan data except the last and even dc has issues with these angles.Run away for a ring.

 

[Eellee44]

40.1 degreeu pavilion angle is not good for a ring and makes for weird images.
They are computer generated based on scan data except the last and even dc has issues with these angles.Run away for a ring.

What would be a good degree pavilion angle so I know what to look out for? Any other red flags I should keep in mind?

 

[lovedogs]

What would be a good degree pavilion angle so I know what to look out for? Any other red flags I should keep in mind?

Stick to these proportions (and stones that score under 2 on the HCA)
Table: 54-57
Depth: 60-62.4
Crown: 34-35
Pavillion: 40.6-40.8

 

[flyingpig]

It is a classic example of shallow stone.

This is what Garry (the inventor of HCA) has to say about it.

 

[Eellee44]

Stick to these proportions (and stones that score under 2 on the HCA)
Table: 54-57
Depth: 60-62.4
Crown: 34-35
Pavillion: 40.6-40.8

Can I ask another question? Might sound silly but I’m confused about the HCA tool. I noticed that diamonds certified by GCAL were more expensive so I thought perhaps it’s because they were better quality in terms of their standards. The certificate looks like it includes idealscope type images as well so I popped this one into the HCA tool and got a score of 1.3. Is that still too low? Because I then referred back to your helpful guideline and this one seems to be rather off.

 

[lovedogs]

Can I ask another question? Might sound silly but I’m confused about the HCA tool. I noticed that diamonds certified by GCAL were more expensive so I thought perhaps it’s because they were better quality in terms of their standards. The certificate looks like it includes idealscope type images as well so I popped this one into the HCA tool and got a score of 1.3. Is that still too low? Because I then referred back to your helpful guideline and this one seems to be rather off.

Anything scoring under 2 should be considered. The one you posted here is a 60/60 style stone (if you search the forum there are tons of discussions about them). The general idea is that they will give lots of white sparkle vs colored fire that a traditional Ideal cut would have. That said, this 60/60 looks excellent in terms of performance (as per the gcal report images).