Lieber & Solow are longtime rough diamond buyers and have been working in the diamond industry since 1927. We have become one of the world’s leading suppliers of natural industrial diamonds. With generations of experience and extensive inventories, we are proud to be the go-to supplier of diamonds for many around the world.

When it comes down to it, no diamond is born beautiful. They are cut from their natural form, which gives the diamonds a rough look when we buy them. But as rough diamond buyers, we understand what we are buying and how to sell them. Let’s take a closer look at what is a raw diamond and the different types available on the market.

What is a Raw Diamond?

Before we get into the different types of rough diamonds we buy, let’s discuss what exactly is a raw diamond. In general, a rough diamond diamonds are just the uncut forms of fine diamond. The formation of raw diamonds takes a long, long time. And they remain untouched before being mined. And more times than not, it is volcanic activity that allows humans to even get to the raw diamonds in the first place.

The high heat and overall pressure endured from the volcanoes forms the diamond. And once it cools, the end result are crystals. Also known as rough diamonds.

When you mine raw diamonds, they often look pale and colorless. No shine. No elegance. Just a rough looking rock. It is through the path of cutting them that they look they the nice, clean diamonds you expect. Learn more about what determines the value of uncut diamonds.

Different Types of Rough Diamonds to Buy

As professional rough diamond buyers, we understand the difference between the raw diamonds out there. There are two large categories of raw diamonds: natural raw diamonds and lab raw diamonds.

Natural Raw Diamonds

Natural raw diamonds are the diamonds that get mined from the earth. These diamonds are more expensive than their counterparts due to the work put into both finding them and later cutting them. Learn more about diamond cuts.

Here are some examples of the more famous rough diamonds. There are of course more out there, but these few are the most famous examples out there.

Sergio raw diamond

This is the largest rough diamond to ever exist. It weighs a whopping 3,167 carats. However, its only use is for industrial purposes. No jewelry is made from it. Learn more about using diamonds for tool manufacturing.

Cullinan diamond

This diamond weighs 3,106.75 carats to be exact. And unlike the Sergio, this diamond is used for both industrial purposes and for jewelry.

Tiffany yellow diamond

This diamond weighs 287.4 carats and is one of the biggest yellow diamonds to ever exist. Both industrial tasks and those in the jewelry industry use the diamond.

Taylor-Burton diamond

When it was first cut, it weighed 241 carats. Not the biggest diamond, but a beloved one.

Salt and Raw pepper diamonds

They may be gems, but they are also rough diamonds. They have many colors, such as non-clear and grey. And any rose-cut diamonds come from raw salt and pepper diamonds. However, they lack a large surface area, which leads to doubting them as natural diamonds.

Lab Raw Diamonds

As the name would suggest, a lab raw diamond comes from the lab. So since they are processed in a lab, they are cheaper due to the fact that no mining is involved. And since no mining is involved, these diamonds are better for the environment. And there are no ethical issues with them either. When it comes down to it, lab growth diamonds actually have more advantages compared to their natural counterpart. But few things wow people more than a beautiful natural diamond. Beauty is in the eye of the beholder!