cttw, ctw and tw are probably among the most dangerous letters in the diamond sector for unfamiliar buyers.

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Both rings have about 7 carats the yellow diamonds. However one expenses five times an ext than the other, treatment to guess: v which?

when it comes to carat weight it is customary to usage ct together shortage because that carat and cts because that carats. Therefore the quick answer is the CTTW means Carat (CT) and Total load (TW) of a diamond or diamonds. And here are every one of the abbreviations concerned diamond/s weight:

Abbreviations an interpretation
CT Carat
CTS Carats
CTW Carat Weight
CTTW Carat/s total Weight
TDW Total Diamond/s Weight
TW Diamonds Total load of Diamonds

learn the difference in between carat weight and total carat weight and how to decipher the lingo that diamond and jewelry specialists for a smart and also informed diamond ring purchase. And also to put it in numbers:



Why the very first ring with 7.24 carats the yellow diamonds costs half from the 2nd ring that has a total carat load of 3.54 carats? (both rings room from our arsenal of yellow diamond rings)

clock the 3-minute video below for a fast recap of everything you require to recognize from TW Diamond an interpretation to cttw meaning and more.

once shopping fo a diamond engagment ring, you will certainly encounter two main terms - carat weight and also total carat weight. It"s surprising how two so very comparable phrases deserve to be therefore dangerously different. By attention I typical to her pocket...

A Carat is the universally embraced unit that measurement because that diamond weight. One carat is equal to 200 milligrams (0.20 grams), conversely you can say that 5 carats room the identical to one gram. And also this is the last time you"ll hear of grams once it comes to diamonds. 0.01 carat is additionally referred to together carat point. Definition that 50 point out are half a carat.

the word carat originates indigenous the historic technique of weighing diamonds through carob seeds. Before contemporary weighing equipments were developed, diamonds to be weighed ~ above balance scales whereby the unknown load of an object was measure by counting the variety of unit weights essential to counterbalance it. Tiny enough and also considered to be of uniform weight, carob seeds were offered as weight systems for diamonds.

Today, diamond carat load is measure up by perceptible instruments and also is the most vital factor when determining the price the the diamond. It is just one of the 4 C"s the diamonds.

Carat weight has generally concerned represent the dimension of a diamond. It is generally accepted that together diamond carat load increases, for this reason does the size of the stone. Yet this is no 100% TRUE! load is a measurement of fixed (how much issue is in a given item) whereas size reflects the volume (the lot of space the item takes up).

An easier to recognize analogy would be that a heavier person, weighing 160 pounds, wouldn"t have to look bigger 보다 a human being weighing 155 pounds or even 150.

that reminds me a bit of the renowned riddle... (or joke):

What weighs more, a pound of feather or a pound of bricks?

the course, they both weigh the same, a pound, yet the size of the two is very different. Because the bricks room made that denser matter, they take up less space than the feathers at the very same weight and also are smaller in size.

Similarly, the dimension of an item is also influenced by the form it takes. Longer shapes seem bigger than flatter ones. Therefore, marquise, oval, and also pear diamonds often tend to look bigger than ring diamonds that the same carat weight.

mental - weight DOES no EQUAL SIZE!

complete carat weight refers to the sum complete weight of all diamonds collection in a jewel item. To calculate the complete carat weight, simply add together the carat load of every the diamonds in the piece.


“carat weight” describes the load of one given rock

“total carat weight” refers to the sum total of lot of stones.

because that example, a three rock ring that has actually a 1 CT diamond centerstone and also two ½ carat sidestones is a 2 CTW ring.

understanding the significance of CTW & CTTW is an essential when shopping because that a diamond ring. If you space in the sector for one engagement ring v one diamond, additionally known together a solitaire ring, that CTW will certainly be the same as the carat weight of that one diamond. Various other ring styles with multiple stones such together halo, sidestone, or threestone deserve to be more tricky once considering CTW. Let’s look at some essential points come remember when shopping for these rings.

since CTW represents the sum complete of multiple diamonds, rings with the exact same CTW may differ considerably in how numerous diamonds lock hold. A ring with a few larger diamonds can have the same CTW as a ring with many smaller diamonds.

The many extreme instance is forever rings. The full weight of diamonds in lock (i.e. TW Diamonds) is quite significant whereas the weight of each diamond is negligible.



even if it is the CTW that a ring shows a few larger stones or numerous smaller stones will influence the price that the ring significantly. To recognize the result that individual diamond carat weights have on the overall price of a ring, it is important to remember exactly how diamonds room priced. Enlarge diamonds room rarer in nature, and also therefore, the price of diamonds rise exponentially as size increases. Meaning, a 1 ct diamond will be more than twice the price of a ½ carat diamond.

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This truth of pricing method that two rings with the very same CTW will differ in value depending on the dimension of the stones that consist of the ring. Ring of the same CTW consists of many tiny stones will hold less value than those that hold fewer yet larger stones.

Additionally, smaller sized ring sidestones that offer to rise CTW room usually no GRADED, and also therefore space of lesser quality and also less valuable.

You would think that ring prices would reflect these distinctions in value, but this is NOT always true. In fact, rings with many smaller sidestones frequently cost much more than a ring v a few larger sidestones of the same CTW! This may be as result of the extra manufacturing work and time compelled when setting many little stones together opposed come a couple of larger diamonds, or simply because jewelers understand the median customer is none the wiser. One of two people way, PRICE does NOT constantly REFLECT VALUE!

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When selecting a ring, mental to consider the value behind CTW. Rings with fewer, larger stones are more valuable 보다 those with many smaller diamonds in ~ the exact same CTW.

maintaining in mind how the quantity and also value that diamonds varies when considering CTW, here are a few ways to make the many of her diamond ring purchase:

Remember that carat weight mirrors the mass of the diamond and not have to the size? When trying to find a diamond ring, mental that longer shapes seem bigger than flatter ones to the human being eye. Marquise, oval, and pear diamonds often tend to look at bigger than round diamonds the the very same carat weight and are frequently priced reduced than round cut diamonds due to lesser popularity.

as soon as considering rings with sidestones, take note of just how they are placed along the ring. Follow to the law of proximity, among 6 Gestalt regulations of perception, "objects that room close come one an additional appear to kind groups". This means that sidestones grouped closely together seem smaller sized than the same variety of sidestones that room spread out over more area of the ring.

because that example, provided identical center stones, which ring execute you think has much more diamonds? and also which prices more?

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At an initial glance the looks like the second ring v the side-stones setup has an ext diamonds than ring one, an ext sparkle. BUT, the an initial ring actually has much more diamonds (quantity wise) and they are additionally bigger diamonds 보다 the ones in the 2nd ring!

The first, the aur Ring, 12 bordering diamonds weighing 0.34 carats while the second ring only has actually 10 diamonds weighing 0.10 carats total. This illusion is as result of the fact that in ring 1, the halo design concentrates the diamonds close together, and also we perceive them all together one object, when in ring 2, the sidestones room spread out along the band, making lock seem more than castle are.

On optimal of that, the 2nd ring has actually what is dubbed a milgrain decoration. Which ads sparkle come it making that look choose there are also more small diamonds in the setting.

to conclude - as in numerous other situations its not around the quantity however rather the quality. Bigger diamonds are rarer and also considered of greater quality than smaller diamonds. Make sure you are obtaining what you payment for, the expense of a ring with 10 diamonds weighint 0.10cts each (i.e. 1.00ctw) is much less than a ring through one 1.00 carat diamond.

together always, if you have any kind of further questions, please do not hesitation to contact us!