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Shape refers to the geometric outline of the stone, as viewed from above. The shape often determines the overall style of the finished piece of jewelry, but each shape has its own attributes and cut specifications. This means that a diamond’s shape can be faceted, or cut, in many different ways. There are several shapes and cut combinations that appear together, so they have often been given their own names, like round, princess, cushion, and marquise.
A diamond’s clarity refers to the presence of impurities on and within the stone, called flaws or inclusions. These imperfections form during the growing process and are unique to each stone. "Eye clean" diamonds have inclusions that generally cannot be seen without magnification and are typically graded SI or higher on the clarity scale.
Aether Diamonds are created through a carbon-negative process that captures CO2 polluting the air, and combines it with green hydrogen to produce high-purity Atmospheric Methaneâ„¢. This methane fuels specialised CVD chambers where diamonds grow atom by atom, ensuring ethical sourcing and traceable origins. After the diamond material is formed, it undergoes advanced mapping, precision cutting, and traditional polishing to achieve the highest quality standards with minimal environmental impact Learn More.
A grading report or diamond certificate is an independent, expert opinion on the quality of the diamond. Gemologists from the world's leading grading labs use special equipment to measure the weight and dimensions of the diamond and assess quality characteristics such as cut, color, and clarity. Grown Brilliance only utilizes the most distinguished grading labs.Please contact us to request the grading report.
The length-to-width ratio compares the length of a diamond to its width to show how elongated a fancy-shaped diamond appears when viewed from the top. Length-to-width ratio is a matter of personal preference with some individuals preferring a more elongated shape and others a more equal or square shape. It is calculated as length divided by width.
Fluorescence refers to a diamond's tendency to emit a soft colored glow when subjected to ultraviolet light (such as a "black light"). Overall, diamond fluorescence should not be a major factor in the purchase of a diamond since its effects are negligible. Fluorescence grades include Very Strong, Strong, Medium, Faint, None.
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As you explore the world of diamonds, you may have encountered a fascinating development: lab grown diamonds. These man-made marvels have been gaining popularity, prompting numerous questions about their nature, quality, and value. In this comprehensive guide, you'll find answers to the most frequently asked questions about lab grown diamonds. We'll delve into the science behind their creation, examine their physical and chemical properties, and compare them to mined diamonds. Whether you're considering a purchase or simply curious about this innovative technology, this article will provide you with the in-depth knowledge you need to make informed decisions about lab grown diamonds.
Definition and Composition
Lab grown diamonds, also known as lab created, synthetic, or man-made diamonds, are real diamonds that are created in a laboratory setting rather than mined from the earth. These diamonds have the same chemical composition, crystal structure, and physical properties as mined diamonds. They are optically, chemically, and physically identical to their mined counterparts, making them indistinguishable to the naked eye.
Production Methods
There are two primary methods used to produce lab grown diamonds:
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High-Pressure High-Temperature (HPHT): This process mimics the natural diamond formation by subjecting carbon to extreme pressure and temperature.
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Chemical Vapor Deposition (CVD): This method involves breaking down carbon-containing gases and crystallizing the carbon onto a diamond seed plate.
Both processes replicate the extreme conditions that cause mined diamonds to form over millions of years, but in a much shorter time frame.
Characteristics and Grading
Lab grown diamonds are graded using the same 4Cs (carat, color, clarity, and cut) as mined diamonds. They can rival the quality and appearance of mined diamonds and are available in a wide range of sizes and colors. However, trained gemologists can identify lab grown diamonds using specialized equipment and techniques, such as examining growth patterns and specific defects.
High-Pressure High-Temperature (HPHT) Method
The HPHT method replicates the extreme conditions under which natural diamonds form deep within the Earth. This process subjects a small diamond seed to temperatures around 1500°C and pressures of 1.5 million pounds per square inch. The intense heat and pressure cause carbon atoms to crystallize around the seed, forming a larger diamond. Interestingly, the pressure used is equivalent to a commercial jet plane balancing on the tip of a finger.
Chemical Vapor Deposition (CVD) Method
The CVD method involves placing a diamond seed in a sealed chamber filled with carbon-rich gas. The gas is then heated to extreme temperatures, causing carbon atoms to separate from the gas and adhere to the seed, growing it into a larger crystal. This process occurs at moderate temperatures (700-1300°C) and lower pressures compared to HPHT.
Characteristics and Identification
Lab-grown diamonds are chemically, physically, and optically identical to mined diamonds. However, they can be distinguished by experts using advanced techniques. HPHT diamonds often display uneven color distribution and unusual fluorescence, while CVD diamonds typically have even color distribution and banded strain patterns. GIA uses sophisticated methods, including the GIA iD100 instrument, to confidently identify whether a diamond is mined or lab-grown.
Identical Physical Properties
Lab grown diamonds offer all the beauty and durability of natural diamonds, with identical physical, chemical, and optical properties. These man-made gems are just as hard, brilliant, and long-lasting as their mined counterparts, making them an excellent choice for jewelry and other applications.
Cost-Effective Alternative
One of the most significant advantages of lab grown diamonds is their affordability. The production process is more efficient and less costly than mining mined diamonds, resulting in lower prices for consumers. This makes high-quality diamonds more accessible to a wider range of buyers.
An Ethical Choice
Lab grown diamonds offer an ethical alternative to mined diamonds, as they don't involve social concerns associated with diamond mining. Additionally, these diamonds can be engineered to achieve near-colorless to colorless grades and flawless to internally flawless clarity grades, which are rare in mined diamonds.
Origin and Formation
Lab-grown diamonds are created in controlled laboratory environments using advanced technologies like High-Pressure, High-Temperature (HPHT) or Chemical Vapor Deposition (CVD). These processes replicate the conditions under which mined diamonds form, but in a matter of weeks rather than billions of years. In contrast, mined diamonds are formed deep within the Earth's mantle over billions of years, subjected to extreme pressure and temperature before being brought to the surface through volcanic eruptions.
Physical and Chemical Properties
Despite their different origins, lab-grown diamonds are physically, chemically, and optically identical to mined diamonds. Both types possess the same crystal structure and exhibit similar hardness, brilliance, and fire. However, subtle differences in growth patterns can be detected by gemological experts using advanced testing methods.
Cost and Availability
One of the most significant differences between lab-grown and mined diamonds lies in their cost and availability. Lab-grown diamonds are typically more affordable than their mined counterparts of comparable size and quality. This price difference is primarily due to the controlled production process of lab-grown diamonds, which is more efficient and less resource-intensive than mining mined diamonds. As a result, lab-grown diamonds offer consumers a more budget-friendly option without compromising on quality or appearance.
Understanding Lab Grown Diamonds
When considering lab grown diamonds, it's crucial to understand what they are. Lab grown diamonds are real diamonds that are produced in a laboratory using advanced technology, rather than being mined from the earth. They are chemically, physically, and optically identical to mined diamonds. The main difference lies in their origin and formation process.
Evaluating Quality and Certification
Just like mined diamonds, lab grown diamonds are graded using the 4Cs: cut, color, clarity, and carat weight. When purchasing a lab grown diamond, it's helpful to acquire a grading report from a reputable gemological laboratory like IGI or GIA. This report will verify the diamond's quality and authenticity, providing you with peace of mind.
Pricing and Value Considerations
One of the most significant advantages of lab grown diamonds is their cost. They are typically priced at a third or less than their mined counterparts, making them an attractive option for budget-conscious buyers. However, it's important to note that while they offer excellent value, their long-term resale value may differ from that of mined diamonds.
Making an Informed Decision
When deciding between lab grown and mined diamonds, consider your personal preferences, budget, and values. Both options have their merits, and the choice ultimately comes down to what matters most to you. Whether you prioritize cost-effectiveness, ethical sourcing, or traditional symbolism, ensure you're working with reputable sellers who provide clear information and certification for their diamonds.
As you've learned, lab grown diamonds offer a compelling alternative to mined diamonds, matching their mined counterparts in beauty and quality while addressing ethical concerns. By understanding the creation process, characteristics, and market positioning of these gems, you're now equipped to make an informed decision when considering a diamond purchase. Whether you prioritize ethics, affordability, or simply appreciate technological innovation, lab grown diamonds present a fascinating option in the world of fine jewelry. As this industry continues to evolve, staying informed about the latest developments will ensure you remain at the forefront of this exciting and rapidly advancing field.