.5 Carat Diamond: Bigger Isn’t Always Better

by DMNDS | Last Updated: May 4, 2020

The size of a diamond’s carat is one of the primary determinations of a its worth. Some of the more common carat sizes you’ve likely heard of are 1 or 2 carat diamonds. However, there is also the increasingly popular .5 carat diamond. In this article, we will break down everything you need to know about the .5 carat diamond. This includes size, benefits, as well as typical cost.

What Does A .5 Carat Diamond Look Like?

The Gemological Institute of America (GIA) picture below shows the relative size difference between the .5 carat diamond all the way up to the 5 carat diamond. As you can see, the contrast between the various carats is quite significant. When you start comparing the prices between these, you will see a massive difference there as well.

Photo: GIA

Benefits Of A .5 Carat Diamond

Apart from the obvious benefit of being less expensive than its larger counterparts, a smaller diamond has many other pros that a buyer should consider. Here are some of the primary reasons to consider a smaller diamond.

How Big Is A .5 Carat Diamond?

The measurement of a .5 carat diamond is about 5mm in diameter and usually weighs between 100 and 110 mg.

You can get a more realistic idea of the diamond carat size by using this interactive slider below. This was put together by the GIA. It is a very useful tool to help get a sense of the size differences between diamond carats. Keep in mind that while using this, the sizes depicted are relatively accurate. However, they are not a guarantee of how big a certain carat will be when viewing in person.

.5 Carat Diamond Cost

The question on most prospective buyer’s minds is cost. If you are in the market for a diamond, you are going to be spending what most people would consider a decent sum of money. The value of a diamond will vary depending on the stone’s overall grade. Knowing that, you can expect the average cost of a .5 carat diamond to be approximately $1,500.

If you would like to spend more than that, you can absolutely do so as there are higher priced diamonds in this size. On the other hand, there are also less expensive options; however you must be willing to forego certain areas of the stone’s integrity, such as a lower clarity grade. With that said, the typical price you can expect to pay for a diamond of this carat weight is $1,500.

.5 Carat Diamond For Engagement Rings

One of the primary schools of thought when purchasing a diamond revolves around carat size.

Most people interested in taking the next step in their relationship have an important choice to make in terms of choosing the right engagement ring. Whether we agree with it or not, most Western societies place a large emphasis on the materialistic side of love. If you are prospecting for a diamond and are asking yourself what size carat you should aim for, know that the smaller rings are becoming more popular for all the reasons listed above.

So the question of whether the .5 carat diamond is suitable for an engagement ring can be answered with an emphatic yes! All of the most common diamond cuts will be offered in the .5 carat size. This is a wonderful option for anyone intent on asking their special someone to take the next step in their relationship.


At the end of the day, a diamond purchase is a big consideration. It is likely something that you or the person you gift it to will have for the rest of their life. A .5 carat diamond can be a wonderful choice for a person that likes less attention and appreciates the fine detail of a smaller crafted stone.