cttw, ctw and also tw space probably amongst the many dangerous letter in the diamond industry for unfamiliar buyers.

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Both rings have around 7 carats the yellow diamonds. Yet one prices five times an ext than the other, treatment to assumption: v which?

once it pertains to carat weight it is customary to use ct together shortage for carat and cts for carats. For this reason the short answer is the CTTW means Carat (CT) and also Total weight (TW) of a diamond or diamonds. And here are all of the abbreviations pertained to diamond/s weight:

Abbreviations definition
CT Carat
CTS Carats
CTW Carat Weight
CTTW Carat/s total Weight
TDW Total Diamond/s Weight
TW Diamonds Total weight of Diamonds

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



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

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

A Carat is the universally embraced unit of measurement for diamond weight. One carat is same to 200 milligrams (0.20 grams), alternatively you have the right to say the 5 carats space the indistinguishable to one gram. And also this is the last time you"ll hear of grams when it involves diamonds. 0.01 carat is likewise referred to together carat point. Meaning that 50 points are fifty percent a carat.

words carat originates from the historic technique of weighing diamonds v carob seeds. Before modern weighing equipments were developed, diamonds were weighed on balance scales whereby the unknown weight of an item was measured by counting the variety of unit weights necessary to counterbalance it. Little enough and considered to be of uniform weight, carob seed were used as weight devices for diamonds.

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

Carat weight has generally come to represent the size of a diamond. It is generally accepted that together diamond carat load increases, so does the dimension of the stone. Yet this is no 100% TRUE! load is a measurement of fixed (how much issue is in a provided item) vice versa, size shows the volume (the lot of space the items takes up).

An less complicated to understand analogy would be the a more heavier person, weighing 160 pounds, wouldn"t necessarily look bigger 보다 a human being weighing 155 pounds or also 150.

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

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

that course, they both sweet the same, a pound, however the size of the two is an extremely different. Since the bricks room made the denser matter, they take it up less space than the feathers at the very same weight and are smaller in size.

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

remember - load DOES not EQUAL SIZE!

full carat weight describes the sum complete weight of all diamonds collection in a jewel item. To calculation the full carat weight, simply include together the carat load of every the diamonds in the piece.


“carat weight” refers to the weight of one given stone

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

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

expertise the definition of CTW & CTTW is crucial when shopping for a diamond ring. If you room in the sector for one engagement ring with one diamond, also known together a solitaire ring, its CTW will certainly be the same as the carat weight of that one diamond. Various other ring formats with many stones such as halo, sidestone, or threestone can be more tricky as soon as considering CTW. Let’s look at some necessary points come remember as soon as shopping for these rings.

since CTW to represent the sum complete of multiple diamonds, rings v the same CTW might differ greatly in how many diamonds castle hold. A ring through a few larger diamonds can have the exact same CTW together a ring with many smaller diamonds.

The many extreme example is forever rings. The total weight that diamonds in lock (i.e. TW Diamonds) is quite far-ranging whereas the weight of each diamond is negligible.



whether the CTW of a ring reflects a couple of larger stones or countless smaller stones will affect the price the the ring significantly. To understand the effect that separation, personal, instance diamond carat weights have actually on the in its entirety price the a ring, it is necessary to remember exactly how diamonds room priced. Bigger diamonds space rarer in nature, and also therefore, the price that diamonds rise exponentially as dimension increases. Meaning, a 1 ct diamond will be much more than double the price of a ½ carat diamond.

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This reality of pricing way that two rings through the exact same CTW will differ in value depending on the dimension of the stones that make up the ring. Ring of the exact same CTW consists of many tiny stones will organize less worth than those that hold fewer however larger stones.

Additionally, smaller sized ring sidestones that offer to boost CTW room usually no GRADED, and 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 constantly true. In fact, ring with numerous smaller sidestones often cost an ext than a ring through a couple of larger sidestones that the exact same CTW! This might be as result of the extra manufacturing work and also time compelled when setting many little stones together opposed come a few larger diamonds, or simply due to the fact that jewelers understand the typical customer is nobody the wiser. Either way, PRICE does NOT constantly REFLECT VALUE!

× Buying reminder

When picking a ring, remember to think about the value behind CTW. Rings with fewer, bigger stones are much more valuable 보다 those with countless smaller diamonds at the same CTW.

keeping in mind just how the quantity and value of diamonds varies when considering CTW, right here are a few ways to make the many of your diamond ring purchase:

Remember that carat weight mirrors the fixed of the diamond and also not have to the size? When in search of a diamond ring, mental that longer shapes seem larger than flatter ones come the human being eye. Marquise, oval, and also pear diamonds tend to look bigger 보다 round diamonds of the very same carat weight and are often priced lower than round cut diamonds as result of lesser popularity.

once considering rings through sidestones, take keep in mind of exactly how they are placed along the ring. Follow to the law of proximity, among 6 Gestalt legislations of perception, "objects that space close to one one more appear to form groups". This means that sidestones grouped very closely together seem smaller than the same variety of sidestones that room spread the end over an ext area the the ring.

because that example, provided identical center stones, i m sorry ring perform you think has an ext diamonds? and also which costs more?

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At an initial glance it looks like the second ring through the side-stones setting has an ext diamonds than ring one, an ext sparkle. BUT, the an initial ring in reality has an ext diamonds (quantity wise) and also they are likewise bigger diamonds than the persons in the 2nd ring!

The first, the aur Ring, 12 bordering diamonds weighing 0.34 carats while the 2nd ring only has 10 diamonds weighing 0.10 carats total. This illusion is because of the truth that in ring 1, the halo style concentrates the diamonds near together, and also we perceive them all as one object, when in ring 2, the sidestones room spread out follow me the band, making castle seem more than they are.

On top of that, the second ring has what is called a milgrain decoration. I m sorry ads sparkle come it making it look prefer there are also an ext small diamonds in the setting.

come conclude - together in countless other cases its not around the quantity but rather the quality. Enlarge diamonds space rarer and also considered of higher quality than smaller sized diamonds. Make sure you are obtaining what you payment for, the price of a ring with 10 diamonds weighint 0.10cts every (i.e. 1.00ctw) is much less 보다 a ring through one 1.00 carat diamond.

as always, if you have any type of further questions, please do not hesitate to contact us!