Though “culet” is a word that may sound strange to you, but it is one of the defining characteristics of diamonds. Depending on the circumstances, diamond culet can be very important. Let’s see what this term really mean and what you should know about it when buying diamonds.
What is Culet?
The culet is a tiny facet at the base of the pavilion that is parallel to the table of a diamond. In plain words, if you look at the diamond from the side, you’ll see that the lower portion of a diamond is cone-shaped, this part is called the pavilion. At the very end of that cone, you will find the culet.
Do All Diamonds Have a Culet?
Actually, there are a lot of diamonds without a culet. The reason some jewellers don’t create a culet and leave the bottom of the stone sharp has mostly to do with aesthetics. If you look at a diamond with a culet from the top, it will be visible from above as a tiny dark point. On the contrary, there is no such effect when the culet is missing.
Culet Grading Scale
The culet is described according to its size. The Gemological Institute of America (GIA) uses the following grades:
- Very Small
- Slightly Large
- Very Large
- Extremely Large
If you read a diamond’s grading report, you will see a section that lists information about the culet.
Should Your Diamond Have a Culet?
First of all, let’s clarify that the main purpose of the culet is to protect the stone.
If the diamond’s bottom is left sharp and the stone is accidentally hit, there is a greater risk of cracking or breaking off the pointed end.
There is a debate going on among jewellers about whether a diamond should have a culet or not. There are arguments for and against it, that’s why no uniform opinion exists.
Of course, you are free to decide for yourself what you prefer, but it is recommended to have a small one for additional protection.
If you think you should have one, better go with Very Small, Small or Medium. In case the culet is any larger, it will probably affect how the stone looks. This is especially true for a Very Large and an Extremely Large culet. You will definitely be able to see it from the top of the diamond, and it will look like a dark dot.
If you think your stone shouldn’t have culet, be aware that extra care should be taken when the stone is set in the mounting. It’s extremely important that the diamond is put in a setting that will protect it.