Size & Proportions

[claptik]

I am going to be beginning my diamond search in the near future and will be targeting round ideal H VS2 or better diamonds. I haven''t completely finalized my budget yet so I plan on looking at diamonds both in the .75ct and 1ct size range. I know this might be difficult to answer without any specific specs, but are there any special things I should take into consideration as far as proportion (table, pavillion, crown, etc.) for a .75ct stone that wouldn''t be as big of a deal for a 1ct, or vice versa, or anything I should be avoiding in either particular size? Or would I basically apply the same ideal cut principals to both. As most people probably are, I''m looking for something with a good blend of fire, brilliance and scintillation. Thanks for the help.

 

[JulieN]

No, you're fine. Same rules apply in the .75-1 range. If you went really small, like .25 cts, or a a lot bigger, like 1.5/2 cts, things would change.

 

[Cehrabehra]

Date: 8/19/2006 5:16:19 PM
Author: JulieN
No, you''re fine. Same rules apply in the .75-1 range. If you went really small, like .25 cts, or a a lot bigger, like 1.5/2 cts, things would change.

the rules are different for a 2.5 carat diamond than for a 1 carat diamond? howso?! I''ve never heard this!

 

[Bluehammer]

My understanding is that the larger the stone the more noticeable the color (possibly). I do not think this will be an issue when comparing .75 to a carat. I recently (a few days ago) completed my search and found a stone.

It was helpful to me to get a Sarin report or a look at the certificate. When comparing stones you can find lots o measurements that work. Make sure you get crown and pavillion angles and plug them into the Cut Advisor tool on this website (the HCA). It will help guide you to stones that are worth a look.

I would also watch the diameter measurements. A 1 carat stone should be 6.5 mm in diameter (on average). You use this as a gauge to see if the stone is too shallow and spready (a much bigger diameter) or too deep or too big of a girdle(a smaller diameter). You do not have to hit 6.5 mm exactly, but if you found a 6.7mm, 1 carat stone you might want to investigate why. Remember carat is weight not size.

This site has a good diamond tutorial. I recommend reading it, going to see some ideal cut stones (at a local store), writing down the measurements for stones you like, then reading the tutorial a second time. Sounds weird, but the info will make more/different sense to you once you have seen some stones.

Lastly, I found there are some visual differences in similar cut stones based upon small changes to the numbers. Go see stones that are going to give you different measurements. Some branded stones have extra facets. I found these stones tend to sparkle differently than non-extra faceted stones. You may or may not like the look.

If you have questions voice them here. Just remember you are getting peoples opinions. What one person "likes" may not be for you. Just take in all the knowledge you can and enjoy the process.

 

[Lorelei]

Date: 8/19/2006 5:15:06 PM
Author:claptik
I am going to be beginning my diamond search in the near future and will be targeting round ideal H VS2 or better diamonds. I haven't completely finalized my budget yet so I plan on looking at diamonds both in the .75ct and 1ct size range. I know this might be difficult to answer without any specific specs, but are there any special things I should take into consideration as far as proportion (table, pavillion, crown, etc.) for a .75ct stone that wouldn't be as big of a deal for a 1ct, or vice versa, or anything I should be avoiding in either particular size? Or would I basically apply the same ideal cut principals to both. As most people probably are, I'm looking for something with a good blend of fire, brilliance and scintillation. Thanks for the help.

Welcome

As far as I am aware, cut is cut and apart from hearing that a larger table is advantageous in very small diamonds such as melee size, you would look for the same cherry proportions in a .5 carat, .75 carat, 1 carat, 1.5 etc. Julie if you could elaborate please about the rules changing this would be helpful please?

No, you're fine. Same rules apply in the .75-1 range. If you went really small, like .25 cts, or a a lot bigger, like 1.5/2 cts, things would change.