Naturally colored pearls like black Tahitian pearls or Golden South Sea pearls are graded on their color's depth and saturation - the more strongly colored pearls will be more rare and valuable. Certain overtones or exotic body colors command premium pricing at auctions. Read More: Ultimate Guide to Pearl Colors This comprehensive pearl classification system offers a detailed description of the appearance of loose pearls, strands, and pearls in jewelry. It is a systematic approach to evaluation, through consistent methodology and common terminology that both industry professionals and consumers can understand (Zhou, 2019).
Pearl Grading All About the AAAA Pearl Grading Scales Sea pearls, South sea pearls, Pearls
The GIA uses a comprehensive standard it developed over a 60-year period of ground-breaking research on pearls, called The GIA 7 Pearl Value Factors™ (Size, Shape, Color, Luster, Surface, Nacre, and Matching). The A-AAA Grading System uses all 7 Value Factors to evaluate our pearls and assign each strand or pair of earrings its spot on this easy to understand scale. In this Grading Guide, you will learn what each of the 7 Value Factors are, what the A-AAA Grading System is and how it relates to the farmer's A-D Grading System, and much more. Like diamond grading, pearl classification is a complex process that takes a trained gemologist time and extensive knowledge to execute. So let's dive into pearls to learn about the factors that influence their value, how they are assessed, and how GIA Pearl Reports can help you understand the classification of your natural or cultured pearl. Pearl grading is a key metric to understand before ultimately making your pearl jewelry purchase. Due to a lack of universal grading standards for pearls, its important for consumers to purchase from reputable and trustworthy pearl suppliers that uphold the highest standards for pearl quality.
Mikimoto Pearl Grading System tastefulimage
Weights and Measures. This is the first stop for any item submitted for pearl services. Pearls are counted by hand and then weighed with an electronic micro-balance that captures the weight in grams (mounted or strung), carats (loose), or carats and grains (loose natural). Pearls are measured using special digital calipers. If you're new to pearl grading, a piece of paper with text on it may help you determine the quality of the pearl's luster. A jeweler's loupe can help you identify potential treatments and surface characteristics. You'll also need calipers to measure the pearl's size accurately. The qualities that determine the overall value of a natural or cultured pearl or a piece of pearl jewelry are size, shape, color, luster, surface quality, nacre quality, and—for jewelry with two or more pearls—matching. Size: When other value factors are equal, larger pearls are rarer and more valuable than smaller pearls of the same type. Pearl Classification is a systematic approach to evaluating and describing pearls, using consistent methodology and terminology.. Pearl Grading Lab Admissions. Back; Admissions. What pearl classification system does GIA use? contact us. Toll Free. 800-421-7250 ext 7590. Outside U.S. & Canada.
Pearl Grading All About the AAAA Pearl Grading Scales Pure Pearls
How do I pay for analysis and grading services? What does "Predominantly natural" mean on a pearl report? Can I put multiple pearls or items on one pearl report? What pearl grading system does GIA use? What is the difference between natural and cultured pearls? How does the GIA Pearl Identification & Classification Report address nacre thickness? Let's take a look. What Are The Different Types Of Pearl Grading? Most pearl sellers tend to use completely different grading systems or variations of the few established systems to a point where no two sellers' grading systems are the same.
Some of the most common pearl grading systems include: Japanese Grading (Mikimoto Grading) Tahitian Grading System Chinese Grading System Kyllonen Grading System Each system uses the same basic standards but tends to use different terminology. There are two primary pearl grading systems: Pearl Grading: Hanadama System This system was designed for Akoya pearls. These pearls must have a nacre thickness of at least .4 mm. They are rated from A to AAA.
GIA pearls grading In GIA description system are properties that all pearls, whether natural
Tahitian Pearl Grading Guide - The Ultimate Guide to A-AAA Tahitian Pe - Pure Pearls Tahitian Pearls - Ultimate Grading Guide This detailed visual guide is a fantastic reference article for learning about Tahitian pearls and the A-AAA Grading Scale that PurePearls.com uses. Pearl grading plays a crucial role in determining the value of pearls. This Ultimate Pearl Grading Guide helps you understand how and why pearls are graded.
