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If you’ve invested time looking in ~ engagement rings and also other diamond jewelry online, you may have actually noticed the acronym “CTTW” together other essential details such together cut, clarity, color and carat weight. 

For example, these space beautiful benidormclubdeportivo.org for a 2.18cttw pair the earrings indigenous Blue Nile. That method they space 2.18 carats combined. Or you have the right to look at this very elaborate and ornate halo setup for an engagement ring also from Blue Nile. There room 3.07 carats precious of accent benidormclubdeportivo.org on this ring. If you placed a 1ct facility diamond into this ring, you will have a 4.07 cttw engagement ring.

What walk CTTW median in a Diamond Ring?

CTTW means “carat total weight,” or “total carat weight.” it’s a metric that’s provided to measure up the total weight of every one of the benidormclubdeportivo.org in a particular piece the jewelry, such as a tennis bracelet or a pavé diamond ring. 

You can see “CTTW” written as “CT TW” for some engagement rings. CT represents “carat,” a unit provided to measure up a diamond’s weight. TW is brief for “total weight” and also is provided to measure the total weight of all benidormclubdeportivo.org in a piece of jewelry.

The carat load of one diamond and the total carat weight of a diamond ring are really different numbers — a fact that can cause some man for first-time buyers. Below, we’ve defined how CTTW works, as well as how it differs from other dimensions of a diamond’s weight.

CTTW vs. Carat: those the Difference?

As we spanned in our guide to diamond carat weight, the carat load of a diamond describes the lot the diamond weighs, no its size. A diamond of a solitary metric carat weighs precisely 200 milligrams and can selection in diameter native 5.60mm come 6.60mm depending upon its cut grade. 

Carat load is abbreviation at “ct.” once you’re viewing loosened benidormclubdeportivo.org online, you’ll usually see your carat weight provided alongside factors such together cut, color and clarity. 

0.47cttw double Halo

CTTW, ~ above the other hand, refers to the total weight of all of the benidormclubdeportivo.org in a specific piece the jewelry. Unequal ct., i m sorry is provided to display the weight of a loose diamond or center stone, CTTW is only used to screen the complete carat weight of all benidormclubdeportivo.org. 

If did you do it read any type of of our other guides, you could have also seen the acronym “CTW” offered to express to complete carat weight. Both CTTW and CTW are used global and have the precise same meaning.

Many engagement rings just contain one center diamond. Because that example, this knife sheet solitaire setup from James Allen is designed to only hold a facility stone. Together a result, the ring’s complete carat weight (CTTW) will certainly be the same as the carat weight of the center stone.

Other rings, such together this lotus basket pavé engagement ring indigenous James Allen, have a tape that’s lined with little benidormclubdeportivo.org. This specific ring functions 36 small round benidormclubdeportivo.org, including up come a total carat load of 0.25 carat without a facility stone. 

The total carat weight, or CTTW, of this ring is calculated by including together the carat weight of the pavé set benidormclubdeportivo.org and the weight of the center stone. For example, by selecting this 1 carat ring H VS2 diamond from James Allen, the full weight that the setup and center rock is 1.25 carats. 

Some engagement ring settings have the right to have a significant total carat weight even before the center rock is added. Because that example, this grande halo split shank setup from James Allen has actually a 0.70 CTTW without any type of center stone due come its 64 pavé and also halo collection benidormclubdeportivo.org. 

Total Carat load (CTTW) and also Diamond Prices

The price the a diamond increases exponentially with that carat weight. Because that example, a sells because that $1,243. A 1.00 carat diamond through the same specifications costs $5,453, despite only being twice the carat weight. 

The factor for this is simple. Big benidormclubdeportivo.org are substantially rarer than smaller sized benidormclubdeportivo.org and as a result, they can command higher prices top top the market. Because of this, a big diamond is constantly going to be precious significantly an ext than a smaller diamond of the same quality.

1.15cttw Princess cut Pave Engagement Ring

This no the situation with a ring’s full carat weight. Since this number is do by adding up the carat weight of all of the ring’s small benidormclubdeportivo.org, over there isn’t an exponential relationship between the ring’s complete carat weight and also its value.

For example, mounted in this solitaire setup from Blue Nile, the 1.00 carat H color, VS2 diamond over costs $5,673 in total. This ring has actually a complete carat load of 1.00 carat. 

Meanwhile, v this 0.50 carat H color, VS2 diamond is accessible for $2,763. It also has a total carat weight of 1.00 carat. 

This method that if she on a limited budget, a pavé or halo setup with a fairly high complete carat weight yet a small center rock could it is in a an excellent idea. While girlfriend won’t obtain the complete wow factor of a big center stone, a ring that this form can look beautiful and elegant, every at a lower cost.

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Other determinants to Look for in a Diamond

The carat weight of a diamond — or, in this case, the full carat load of a ring — is only one of several components you should take into consideration when you’re choosing an engagement ring. 

Other factors, such as a diamond’s cut, color and clarity, also play a role in its appearance and value. Recognized as the 4 Cs, these determinants all communicate with each other to affect the method a diamond looks and the amount you’ll pay for it. 

We’ve extended these in an ext detail, and also what you need to look for, in our overview to purchase a diamond. 


CTTW, or total carat weight, constantly refers to the complete weight of every benidormclubdeportivo.org in a ring, bracelet, earrings or various other pieces of jewelry. As soon as you’re the town hall a setting on that is own, it’s the weight of the aur or pavé benidormclubdeportivo.org. For a complete ring, the the load of all small benidormclubdeportivo.org and the center stone. 

Carat weight, i beg your pardon is abbreviated as ct, cw or CW, just refers to the load of the center stone on that is own.

While a ring with a large total carat weight can look impressive, it’s vital to remember the the weight of the center stone is generally the biggest variable in identify an engagement ring’s value. 

Need help buying diamond jewelry? call our experts and also we’ll help you select the greatest quality loosened diamond, engagement ring, bracelet, pendant or earrings for your budget.