Loose Diamond Buying Guide: Know What to Look For

Buying loose diamonds can be an intimidating process for those who are not familiar with the diamond industry. From the four C's (Cut, Clarity, Color, and Carat) to understanding the difference between an ethically obtained diamond and a conflict diamond, there is a lot of information to take into consideration when making a purchase. 

However, with the right guidance, anyone can become an expert in choosing a diamond that best suits their needs and budget. We will provide you with the necessary information to make an informed decision when buying that loose diamond you have been thinking of.

Looking to expand your jewelry collection? Take a look at our selection at LaCkore Couture today!

What is Considered a “Loose” Diamond?

A loose diamond is a diamond that has been cut and polished by a lapidary but is not attached to any jewelry. This type of diamond is the most common form of diamond that is bought and sold in the market. 

Purchasing a loose diamond can be a great way to find a diamond to your exact specifications. You can choose the shape, size, and quality of the diamond, along with being able to negotiate the price. 

This can be a great way to save money when buying a diamond. A loose diamond is also easier to compare and contrast with other diamonds when looking for the best value.

Loose diamonds are an excellent choice for those wishing to customize their own piece of jewelry. With the right setting, a loose diamond can be transformed into a breathtaking piece of jewelry in the future.


Kimberley diamond mine


Loose Diamonds or Rough Diamonds

Rough diamonds and loose diamonds are two very different types of diamonds. Rough diamonds refer to diamonds that are mined from the earth and are completely untouched and uncut. 

These diamonds have an earthy, organic look and can vary greatly in size, shape, and color. Loose diamonds, on the other hand, are diamonds that have been cut and polished to create a more traditional look.

When it comes to purchasing diamonds, both rough and loose diamonds have their advantages and disadvantages. Rough diamonds are typically more affordable, as they have not yet been cut or polished. 

They are also unique, as no two rough diamonds are exactly alike. However, because they have not been cut, they may be harder to set into jewelry and may have less sparkle than a cut diamond.

Rough diamonds are usually purchased by lapidaries, who are responsible for transforming the rough diamond into a loose diamond. Depending on the size and quality of the rough diamond, the lapidary may decide to cut the diamond into a round brilliant, princess cut, or other shapes.

The lapidary will also determine the best way to cut the diamond in order to maximize its clarity and color. Once the cutting and polishing process is complete, the diamond is ready to be sold as a loose diamond.

Related: Your Diamond Shape: What It Says About You

Loose diamonds, on the other hand, are typically more expensive, as they require a skilled lapidary to create the desired shape and cut. These diamonds are usually more sparkly and are easier to set into jewelry, making them more desirable. However, because they have been cut, they may lack the uniqueness of a rough diamond.

4C’s of Diamonds

The 4C’s of diamonds are the four essential characteristics used to grade and price diamonds. The 4C refers to the cut, color, clarity, and carat weight of a diamond. These factors determine the overall quality and value of a diamond. 

Cut is the most important C when it comes to the beauty of a diamond. A well-cut diamond will reflect light and sparkle in the most beautiful way. The cut of a diamond is rated on a scale from excellent to poor and will affect the price of a diamond. 

Color is the second C and refers to the amount of color a diamond has. A diamond with no color (or a higher color rating) will be more valuable than a diamond with more color (or a lower color rating). 

Clarity is the third C and refers to the number of inclusions or blemishes in a diamond. The clarity of a diamond is rated on a scale from Flawless to Included. The fewer inclusions a diamond has, the more valuable it is. 

Carat weight is the fourth and final C. This refers to the size of a diamond. The bigger the diamond, the more valuable it is.

Related: Diamond Quality Guide: Read Before Buying


a man standing in front of a jewelry store



Purchase Diamonds Responsibly

Conflict diamonds, which are diamonds sold illegally to fund conflict in war-torn areas, are a topic that has been talked about heavily in recent years. To avoid buying conflict diamonds, it is important to take a few steps.

Only purchase diamonds from reputable and certified sources. This is the best way to be sure that the diamonds are conflict-free. Look for diamonds certified by the Responsible Jewellery Council, the Kimberley Process Certification Scheme, or the World Diamond Council.

Be sure to ask questions. Ask the retailer or jeweler where the diamond originated from and for a certificate of authentication. If the source is unknown, it is best to avoid making a purchase.

Related: A Guide To Antique Diamonds

Ask for a guarantee. Most reputable jewelers will provide a guarantee that their diamonds are conflict-free. This is an important step to take when considering purchasing a diamond.

Do your research. If a retailer is unwilling to provide information on the origin of the diamond, it is important to do your own research to ensure that the diamond is conflict-free. 

Looking to expand your jewelry collection? Take a look at our selection at LaCkore Couture today!

Final Thoughts

Buying loose diamonds can be a daunting task, but with the right knowledge and research, it can be a rewarding experience. By understanding the 4C's, the different types and shapes of diamonds, and researching reputable vendors, you can confidently and wisely invest in a beautiful loose diamond that will last a lifetime.