The Different Types of Lab-grown Diamonds Available and How They Compare to Each Other

May 7, 2023

For many years individuals have linked diamonds with exclusivity and luxury. While diamonds have become popular, lab-grown diamonds have emerged as sustainable and ethical alternatives to mined ones. Among the numerous diamond marketplaces, Rare Carat stands as the leading supplier of high-quality diamonds.

The company offers different types of lab-grown diamonds with unique characteristics and production methods. In this article, we'll explore the different types of Rare Carats lab-grown diamonds available and how they compare to each other. You'll also get a Lab Grown Diamonds: Complete Buying Guide of Lab Diamonds | Rare Carat to help you make an informed decision while purchasing them.

Types of Lab-grown Diamonds and How They Compare to Each Other

Rare Carat offers a wide range of high-quality lab-grown diamonds. Here are the types of lab-grown diamonds and how they compare to each other:

High-pressure high temperature (HPHT) diamonds

HPHT diamonds are among the first lab-grown diamonds. Compared started to develop these diamonds in the 1950s to mimic similar geological conditions natural diamonds underwent. The manufacturers created these diamonds using a high-temperature furnace and high-pressure press. These diamonds are usually near-colorless and yellowish-brown.

Compared to the other forms, HPHT diamonds usually have a slightly lower clarity level. Besides the lower clarity level that results due to the growth process, they may contain some nitrogen impurities. Nevertheless, they remain the highest quality diamonds common for numerous industrial applications.

Chemical vapor deposition (CVD) diamonds

Manufacturers create these CVD diamonds using a process that involves a heated chamber. The heated chamber contains a gas mixture of hydrogen and hydrocarbon gas. The manufacturer places a diamond seed crystal in the chamber to deposit carbon atoms on the seed crystal to form the diamond layer. The process continues until they create a huge diamond.

These diamonds are more advantageous than HPHT in various ways. For instance, they have better color & clarity and offer a high control level over their growth. CVD diamonds are common in making high-end jewelry and other industrial applications, including cutting tools and electronics.

Hybrid diamonds

Hybrid diamonds results from a combination of CVD and HPHT processes. Manufacturers usually produce them in two stages, where they add a CVD layer to certain HPHT diamonds. The process results in a diamond with better color and a higher level of purity, making them the best option for producing high-end jewelry. Despite the high-end features, hybrid diamonds are cheaper than fully CVD ones.

Nanocrystalline diamonds

Manufacturers create these diamonds using a process that involves detonating explosives in a chamber with a carbon source. The denotations make the carbon atoms transform into diamond crystals. The manufacturers later harvest them and process them into diamond materials. Due to their small size, these diamonds are vital for various industrial applications like polishing and cutting tools.

A Complete Buying Guide of Lab Diamonds Rare Carats

Rare Carats has a wide range of lab-grown diamonds. With the numerous options, there are various things you should be mindful of when looking for the best one to suit your preferences. What should you consider before purchasing? Below is a comprehensive buying guide for lab diamonds on rare Carat:

Decide on the 4cs

It'll be good to consider the 4ct diamond when looking for the best lab diamond. The 4cs include the color, clarity, cut and carat weight. These properties will help you determine the value and quality of diamonds.

Know your shapes

Lab diamonds come in different sizes and shapes. For instance, some are oval, emerald, cushion, and princess, while others are round. Understanding your preferred shape helps you narrow your research to the specific Rare Carat lab diamonds.

Consider certification

Like natural diamonds, independent gemological laboratories also need to certify lab-grown diamonds. Ensure the lab-grown diamonds have certifications from bodies like the International Gemological Institute (IGI) and Gemological Institute of America (GIA) to provide assurance of the diamond's quality.

Read reviews

Rare Carat has a review section for all the diamonds. This lab-grown diamond supplier allows previous buyers to leave feedback on this section. You can read these reviews to give you an idea about choosing the right diamond quality.

Compare prices

3 carat diamond may vary from $28,000 to $121,000 from each other based on the retailers or features. Thus, it'll be important to compare the prices to find the best and fair deal. Nevertheless, the lower price shouldn't compromise the quality and clarity.

Summing Up

Lab-grown diamonds make the best choice for individuals seeking ethical options for mined diamonds. Rare Carats offers various lab-grown diamonds with unique production methods and characteristics. Above is a comprehensive guide to these diamonds (hybrid, nanocrystalline, CVD, and HPHT) and their comparison. The guide also encompasses tips on choosing the right diamonds suiting your budget and needs. With this information, you can get the best 3 and 4-Rare Carat lab-grown diamonds aligning with your values and meeting your needs.


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I believe in making the impossible possible because there’s no fun in giving up. Travel, design, fashion and current trends in the field of industrial construction are topics that I enjoy writing about.

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