In the ever-evolving world of gemology, the subject of “Man made diamonds” has become a topic of interest and intrigue. In a Nonfiction Comprehension Test Practice book, Level 6, readers are invited to explore the fascinating realm of man-made diamonds and their significance in the jewelry industry. 

The article sheds light on the concept of man-made diamonds, also known as lab-grown or synthetic diamonds. Unlike natural diamonds that form deep within the Earth’s crust under high pressure and temperature over millions of years, man-made diamonds are created in controlled laboratory environments using advanced technological processes. These laboratory-grown gems share the same chemical composition and physical properties as their natural counterparts, making them virtually indistinguishable to the naked eye. 

One of the primary discussions revolves around the production process of man-made diamonds. The article explains how these diamonds are grown through two primary methods: High Pressure High Temperature (HPHT) and Chemical Vapor Deposition (CVD). In the HPHT method, carbon is subjected to high pressure and temperature, mimicking the conditions found in the Earth’s mantle. In the CVD method, carbon atoms are deposited onto a substrate through a chemical reaction. Both techniques result in the formation of pure, flawless diamonds. 

Another important aspect explored in the article is the ethical and environmental implications of man-made diamonds. Traditional diamond mining often raises concerns about environmental degradation, habitat disruption, and labor issues in some regions. On the other hand, man-made diamonds are considered a more ethical choice, as they do not involve mining or contribute to these environmental and social challenges. Their production in laboratories ensures a sustainable and conflict-free source of diamonds. 

Furthermore, the article delves into the affordability of man-made diamonds compared to their natural counterparts. Natural diamonds command a premium due to their rarity and the high costs associated with mining and distribution. In contrast, man-made diamonds can be more cost-effective, making them an attractive option for budget-conscious consumers who still desire the beauty and brilliance of a diamond. 

The article also addresses the growing popularity of man-made diamonds among consumers. With increased awareness of the ethical and environmental impact of their purchases, many individuals are consciously choosing lab-grown diamonds to align with their values and preferences. The rising demand for these sustainable gems has sparked a positive shift in the jewelry industry, encouraging more jewelers to offer man-made diamonds as part of their collections. 

Moreover, the article highlights the versatility of man-made diamonds in various jewelry designs. From classic solitaire engagement rings to exquisite necklaces and earrings, man-made diamonds can be incorporated into a wide range of styles and settings. Their availability in different shapes and sizes allows consumers to find the perfect gem to suit their individual tastes and preferences. 


The article “Man Made Diamonds” in the Nonfiction Comprehension Test Practice book, Level 6, provides readers with valuable insights into the world of lab-grown diamonds. From their production methods to their ethical and environmental advantages, man-made diamonds offer an exciting and responsible alternative to natural diamonds. With their remarkable beauty and significance, these gems have undoubtedly carved a prominent place in the jewelry industry, captivating the hearts of

consumers and jewelers alike. As consumer awareness continues to grow, man-made diamonds are expected to shine ever brighter in the future of the jewelry market.

By otto