Help! Indented Natural Inclusions - placement/amount okay?

[madisoncali]

I’m hoping you all can help me with your expertise!

I’m considering the stone above. Do you think the indented natural/natural inclusions are anything to be concerned about? The placement, too many, etc. This is a 1.79, H, 3x, SI1 round.

Thank you SO much!

 

[lovedogs]

I’m hoping you all can help me with your expertise!

I’m considering the stone above. Do you think the indented natural/natural inclusions are anything to be concerned about? The placement, too many, etc. This is a 1.79, H, 3x, SI1 round.

Thank you SO much!

I'm not super concerned about the inclusions, but am concerned about the crown/pav angles not being complementary. With 35 crown you want 40.6 pav, and with 40.8 pav you want closer to 34 crown. So I likely wouldn't buy it for that reason (especially without IS/ASET images).

 

[madisoncali]

I'm not super concerned about the inclusions, but am concerned about the crown/pav angles not being complementary. With 35 crown you want 40.6 pav, and with 40.8 pav you want closer to 34 crown. So I likely wouldn't buy it for that reason (especially without IS/ASET images).

 

[madisoncali]

Thank you so much! Can I ask your opinion about one more diamond and its cut? The specs are above (G, SI1, 1.72, 3x). I’ll post to a new thread in case that is easier as well. Thank you again!

 

[lovedogs]

Thank you so much! Can I ask your opinion about one more diamond and its cut? The specs are above (G, SI1, 1.72, 3x). I’ll post to a new thread in case that is easier as well. Thank you again!

Unfortunately this one isn't good either. Check potential stones with the HCA calculator to make sure angles are complementary. In general, stick with table between 54-57, Depth between 60-62.4, Crown between 34-35, and pavilion between 40.6-40.8

A 34 crown goes better with 40.8 pav, and vise versa. The ones you linked don't have numbers in the range, and also aren't complementary angles.

 

[madisoncali]

I checked the original stone (1.79 in the original post) and it gets an excellent score on HCA- 1.6 (copying and pasting above). Unlike the second stone which gets a 3.6 I believe. That seems like a good result for the first one?

 

[Karl_K]

For the first one it depends on what is in the averages and what exactly the lower girdle % actually is.
Can you get an IS or ASET image?

 

[madisoncali]

I just requested to see if I could get them, but I don’t think I’ll be able to. Are the averages/lower girdle %s something you can only see on those images?

 

[Karl_K]

I just requested to see if I could get them, but I don’t think I’ll be able to. Are the averages/lower girdle %s something you can only see on those images?

GIA grossly rounds the numbers on the report after they are rounded averaged then rounded then they grossly round them:
Crown nearest .5 degrees.
Pavilion nearest divisible by .2 ie 0 .2 .4 .6
table nearest 1%
lower girdles nearest 5% ie: 70 75 80
stars nearest 5%

With some combinations that rounding is more of an issue than others when trying to tell anything by the numbers.

 

[Karl_K]

As long as the girdle isn't made to thin which in this case the report say it wasn't naturals are not a huge issue.
However it does indicate the cutter was pushing for every last ct they could get.
Did they use other tricks that do impact the appearance is an open question that an ASET/IS image would help answer.

 

[Texas Leaguer]

Indented naturals are small pieces of the outer 'skin' of the rough crystal that have been retained in the finished piece, normally at the girdle, in order to avoid reducing the entire circumference of the diamond and suffering inordinate weight loss. This is a common practice, and is usually nothing to worry about.

However, as @Karl_K mentions, if the girdle is thin, these areas of girdle discontinuity can pose a durability risk. Often small naturals may be covered by prongs, although a jeweler may prefer to avoid placing a prong on a natural for fear of damage as pressure is applied to the prong in order to set the stone securely.

Visually, naturals will appear as chips on the girdle. So the larger they are, the more of an issue they become. A bezel setting is sometimes a great option for diamonds with large naturals (or even chips for that matter) to conceal and protect them.