Lab-Created Diamonds: A Comprehensive Review of Simulated and Manufactured Diamonds

May 21


Robert Joseph

Robert Joseph

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Lab-created diamonds have sparked significant interest and confusion among consumers. This article aims to demystify the selection process, providing clarity on lab-created and manufactured diamond jewelry.

Understanding Lab-Created Diamonds

Lab-created diamonds,Lab-Created Diamonds: A Comprehensive Review of Simulated and Manufactured Diamonds Articles also known as synthetic or man-made diamonds, have become increasingly popular due to their affordability and ethical production. However, the terminology and options available can be perplexing. This guide will break down the essentials to help you make an informed decision.

What Are Lab-Created Diamonds?

Lab-created diamonds are produced in a controlled environment using advanced technological processes that replicate the natural diamond formation. These diamonds are chemically, physically, and optically identical to mined diamonds. According to the Gemological Institute of America (GIA), lab-created diamonds are real diamonds, not to be confused with diamond simulants like cubic zirconia or moissanite.

Types of Lab-Created Diamonds

  1. High-Quality Diamonds: These are gem-quality stones indistinguishable from mined diamonds to the naked eye. They are typically set in solid 14K gold or platinum.
  2. Medium-Quality Diamonds: Often used in sterling silver settings, these stones are of decent quality but can be identified as lab-created upon close inspection.
  3. Low-Quality Diamonds: These are used in costume jewelry and are often glued onto electroplated settings. They are not gem-quality and have a murky appearance.

Manufacturing Process

Lab-created diamonds are primarily produced using two methods:

  1. High Pressure High Temperature (HPHT): This method mimics the natural diamond formation process by applying high pressure and high temperature to carbon.
  2. Chemical Vapor Deposition (CVD): This method involves breaking down carbon-rich gases to form a diamond layer by layer.

Quality and Pricing

Quality Variances

The quality of lab-created diamonds can vary significantly. Here’s a breakdown:

  • High-Quality: These diamonds are used in fine jewelry and are indistinguishable from mined diamonds. They are typically set in solid gold or platinum.
  • Medium-Quality: Found in sterling silver settings, these diamonds are of decent quality but can be identified as lab-created.
  • Low-Quality: Used in costume jewelry, these diamonds are not gem-quality and have a murky appearance.


The price of lab-created diamonds varies based on quality:

  • Low-Quality: Typically sold in bulk for costume jewelry, often retailing for less than $15 per item.
  • Medium-Quality: Found in sterling silver jewelry, usually priced under $100 per item.
  • High-Quality: Fine jewelry with high-quality lab-created diamonds can sell for under $100 per carat. Diamonds priced over $100 per carat are not necessarily of higher quality.


When purchasing lab-created diamonds, consider the following:

  • For Children or High Loss Risk: Opt for low-quality diamonds in costume jewelry, available at stores like Walmart for under $15.
  • For Sterling Silver Jewelry: Expect decent stones, but they will not fool anyone into thinking they are mined diamonds. Be aware that sterling silver can cause skin discoloration due to nickel/copper alloys.
  • For Fine Jewelry: Choose high-quality lab-created diamonds set in solid 14K gold or platinum. These settings ensure the highest quality stones and longevity.

Interesting Stats

  • Market Growth: The lab-created diamond market is expected to grow at a CAGR of 7.4% from 2021 to 2026, reaching $29.15 billion by 2026 (source).
  • Environmental Impact: Lab-created diamonds have a significantly lower environmental impact compared to mined diamonds. They require less water and energy and produce fewer carbon emissions (source).


Lab-created diamonds offer a cost-effective and ethical alternative to mined diamonds. By understanding the different types, quality variances, and pricing, you can make an informed decision that suits your needs and budget. Whether you’re looking for fine jewelry or affordable options, lab-created diamonds provide a versatile and sustainable choice.

This article provides a detailed overview of lab-created diamonds, helping consumers navigate the complexities of the market. By understanding the nuances, you can make a smart and informed purchase.