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DIAMONDS
In the heart of the Earth, under pressure and heat,
A gem was born, rare and complete.
A mesmerizing journey, billions of years untold,
It is a story of diamonds, radiant and bold.
Table: The flat top surface of the diamond that light enters through.
Table Size: The table’s width is expressed as a percentage of the overall diameter.
Star Length: The length of the star facet pattern visible when viewing from above.
Girdle: The outer edge or belt-like circumference that separates the crown from the pavilion.
Girdle Thickness: The measurement representing how thin or thick the girdle is.
Crown Height: The distance from the table to the girdle determines how tall or short it appears.
Crown Angle: The angle at which crown facets are positioned in relation to the table, affecting light reflection and refraction.
Pavilion Depth: The distance from the bottom point (culet) to the girdle, impacting brilliance and fire.
Pavilion Angle: The angle at which pavilion facets are positioned in relation to each other, influencing light reflection and refraction within a diamond.
Total Depth: The overall height from culet to table is expressed as a percentage of diamond diameter; it affects brilliance and fire.
Lower Girdle/Half Facet Length: Refers to individual lower girdle or half-facet lengths around its circumference; affects symmetry and light performance.
Culet: A small facet at the bottom tip of a diamond’s pavilion; it can be pointed or slightly rounded.
*The image and more information from the GIA can be seen here.
CARAT WEIGHT
The Carat Weight measures a diamond’s weight, not its size.
- Carat: One carat is equal to 200 milligrams, or 0.2 grams.
- Points: Diamonds are often measured in points, with one carat equal to 100 points. For example, a diamond weighing 0.75 carats may be called a “75-point diamond.”
- Total Carat Weight (TCW): When a piece of jewelry contains multiple diamonds, the total carat weight refers to the combined carat weight of all the diamonds in the piece.
Carat Weight Affects The Diamond’s Size
While carat weight measures a diamond’s weight, it impacts its size. Generally, as the carat weight of a diamond increases, so does its size. However, it’s important to note that carat weight is not the only factor determining a diamond’s size. The diamond’s cut, shape, and proportions also significantly affect how large the diamond appears.
Diamond Pricing
Carat weight has a significant impact on the price of a diamond. As the carat weight increases, the price tends to increase exponentially, especially at the higher end of the carat scale. Larger diamonds are rarer and more desirable, raising their price.
Balancing Carat Weight with the 4 C;s
When choosing a diamond, it’s essential to consider carat weight with other factors, known as the 4Cs: cut, color, and clarity. While carat weight is important, it’s equally crucial to prioritize the overall quality of the diamond. A smaller diamond with excellent cut, color, and clarity may appear more brilliant and beautiful than a larger diamond with lesser quality in these areas.
COLOR GRADE
Color is one of the most important factors when choosing a diamond. The Gemological Institute of America (GIA) grades diamond color on a scale from D (colorless) to Z (light yellow or brown). The less color a diamond has, the more valuable it is.
Here are some key points to consider when evaluating diamond color:
- Understanding the GIA Color Scale: The GIA color scale starts at D for colorless diamonds and progresses to Z for diamonds with noticeable color. Colorless diamonds are rarer and more valuable, while diamonds with a noticeable yellow or brown tint are less valuable.
- Choosing the Right Color Grade: The ideal diamond color grade depends on personal preference and budget. Colorless diamonds (D-F) and near-colorless diamonds (G-J) are popular for engagement rings and other fine jewelry. However, diamonds in the near-colorless range (G-H) can offer excellent value while appearing white to the naked eye.
- Considering Metal Type: The color of the metal in the setting can affect how the diamond’s color appears. For example, a colorless diamond may look more vibrant in a white gold or platinum setting, while a warmer-toned diamond might complement a yellow gold setting.
- Balancing Color and Budget: While colorless diamonds are highly sought after, they also have a higher price tag. Consider your budget and prioritize the factors that are most important to you, whether it’s size, cut, clarity, or color.
- Viewing Diamonds in Different Lighting: Natural daylight and LED lighting can help you assess the diamond’s true color, as some lighting can mask or enhance a diamond’s hue.
By understanding diamond color and how it impacts a diamond’s appearance and value, you can make an informed decision when selecting the perfect diamond for your jewelry piece.
CLARITY GRADE
When it comes to evaluating a diamond’s quality, clarity is a crucial factor. Diamond clarity refers to the presence of internal and external flaws, known as inclusions and blemishes. These imperfections can affect the diamond’s appearance and, consequently, its value. Understanding diamond clarity is essential for anyone purchasing a diamond, as it directly impacts the stone’s brilliance and overall beauty.
The Gemological Institute of America (GIA) has established a widely accepted grading scale for diamond clarity, ranging from “Flawless” (no inclusions or blemishes visible under 10x magnification) to “Included” (inclusions and blemishes are visible to the naked eye). In between these two extremes, several grades consider the imperfections’ size, location, nature, and quantity.
Diamond clarity is assessed using a combination of magnification and observation under controlled lighting conditions. Gemologists examine the diamond to identify inclusions and blemishes and determine their impact on its overall appearance. The location of the imperfections within the diamond can also influence its clarity grade. Inclusions or blemishes near the diamond’s center may be more noticeable and impact its brilliance.
It’s important to note that not all imperfections are visible to the naked eye. Many diamonds with slight inclusions or blemishes are considered “eye-clean,” meaning these imperfections are not visible without magnification. This allows buyers to choose diamonds with slightly lower clarity grades that still appear flawless to the naked eye, allowing for cost savings without sacrificing visual appeal.
Diamond clarity directly affects a diamond’s value, with flawless diamonds commanding the highest prices due to their rarity and exceptional beauty. However, for most consumers, a diamond with minor inclusions not visible to the naked eye offers an excellent balance of quality and value.
In conclusion, understanding diamond clarity is essential for anyone considering a diamond. By familiarizing yourself with the GIA clarity scale and the impact of inclusions and blemishes on a diamond’s appearance, you can make an informed decision and select a diamond that meets your preferences and budget while still radiating exquisite beauty.
CUT
- Round Cut:
The round cut is the most popular and classic of all diamond cuts. Known for its 58 facets, the round-cut diamond is designed to maximize brilliance and sparkle. This timeless cut is versatile and suits various jewelry styles, making it a perennial favorite for engagement rings. - Princess Cut:
The princess cut is a square or rectangular-shaped diamond with pointed corners. This cut is known for its contemporary yet elegant appearance. With its clean lines and brilliant sparkle, the princess cut is a popular choice for engagement rings and other jewelry pieces. - Emerald Cut:
The emerald cut is characterized by its rectangular shape and step-cut facets. This cut emphasizes the diamond’s clarity and luster, making it an excellent choice for those who appreciate sophistication and refinement. The emerald cut is often featured in vintage-inspired and Art Deco jewelry designs. - Asscher Cut:
Like the emerald cut, the Asscher cut is square-shaped with step-cut facets. However, the Asscher cut is more octagonal with more significant step facets, giving it a unique, mesmerizing appeal. This cut is ideal for those seeking a distinctive, vintage-inspired look. - Oval Cut:
The oval cut diamond features an elongated, oval shape that creates the illusion of a larger size. This cut is favored for its flattering appearance on the finger and its ability to exhibit brilliance and fire, similar to the round cut. The oval cut is a stylish, unique, yet timeless diamond shape. - Marquise Cut:
The marquise cut diamond is characterized by its elongated, boat-shaped silhouette with pointed ends. This cut is designed to maximize the diamond’s carat weight, giving the illusion of a larger size. The marquise cut is an excellent choice for those who appreciate a bold, eye-catching look. - Pear Cut:
The pear cut, or teardrop cut, combines round and marquise shapes. It features a rounded end that tapers to a point. This cut offers a graceful, elegant appearance with a touch of whimsy, making it an ideal choice for those who seek a romantic and unique diamond shape. - Heart Cut:
As the name suggests, the heart-cut diamond symbolizes love and romance. This cut features a distinctive heart shape with a cleft at the top, making it a meaningful choice for engagement rings and romantic jewelry.
STONE CERTIFICATION
You want a high-quality and authentic gemstone when purchasing a diamond or other precious stone. This is where diamond certification comes into play. Diamond certification, a diamond grading report, is issued by an independent gemological laboratory that evaluates and identifies a diamond’s unique characteristics. This certification assures the diamond’s quality, authenticity, and value.
Diamond certification involves thoroughly assessing the diamond’s 4Cs: cut, color, clarity, and carat weight. These factors determine the overall quality and value of the diamond. The certification also includes additional information such as measurements, fluorescence, symmetry, and any potential enhancements the diamond may have undergone.
One of the most well-known and respected gemological laboratories is the Gemological Institute of America (GIA). Diamonds accompanied by a GIA certificate are highly regarded in the industry due to the institute’s strict grading standards and reputation for unbiased assessments.
Other reputable gemological laboratories include the American Gem Society (AGS), the International Gemological Institute (IGI), and the Hoge Raad voor Diamant (HRD) in Antwerp, Belgium. Each follows standardized procedures to evaluate and grade diamonds accurately.
Diamond certification serves as a valuable tool for both buyers and sellers. For buyers, a certified diamond provides confidence in the quality and authenticity of the stone, ensuring that they are getting what they pay for. For sellers, having a diamond certified by a reputable laboratory adds credibility to the product and can facilitate a smoother transaction.
It’s important to note that not all diamond certificates are created equal. Some less reputable labs may provide inflated grades or inaccurate assessments, which can mislead buyers. Therefore, it’s crucial to verify the credibility of the issuing laboratory before placing trust in the certification.
In conclusion, diamond certification plays a vital role in the diamond industry by objectively evaluating a diamond’s quality and characteristics. Whether buying a diamond for an engagement ring, a special occasion, or an investment, always insist on a diamond with a reputable certification to ensure its quality and value.
A VERY SHORT HISTORY OF DIAMONDS
The history of diamonds is a mesmerizing journey that spans billions of years and encompasses diverse cultures and civilizations. Formed deep within the Earth’s mantle under intense heat and pressure, diamonds were first unearthed in India over 4,000 years ago. The term “diamond” originates from the Greek word “Adamas,” signifying invincibility, reflecting the stone’s extraordinary hardness.
Throughout ancient times, diamonds were treasured for their resilience and radiance. They often served as talismans and amulets for protection and as symbols of strength, courage, and invincibility. The earliest documented history of diamond mining and trade dates back to the 4th century BC in India, where diamonds were discovered along the rivers and streams of the region.
India remained the principal source of diamonds until the 18th century, when diamond deposits were found in Brazil. This discovery revolutionized the global diamond trade, with Brazil becoming the world’s leading diamond producer for nearly 150 years. In the late 19th century, diamond deposits were uncovered in South Africa, sparking a diamond rush and the establishment of Kimberley’s renowned diamond mining town.
The 19th century also witnessed the emergence of diamond engagement rings, popularized by the British monarchy. In the mid-20th century, De Beers’ iconic marketing campaign, “A Diamond is Forever,” further solidified the diamond’s status as the ultimate symbol of love and commitment.
Today, diamonds are mined and traded worldwide, with major producers including Russia, Botswana, Canada, and Australia. The diamond industry has made remarkable technological strides, enabling more efficient extraction and processing while upholding ethical and sustainable practices.
Throughout history, diamonds have enthralled the human imagination and have been revered for their beauty, rarity, and enduring symbolism. From ancient civilizations to modern societies, the allure of diamonds continues to captivate people worldwide, promising a future as rich and captivating as its storied past.
