Jadeite FAQ

Type A jadeite is natural and untreated, maintaining its original structure and color. Type B has been acid-washed to remove impurities and filled with polymer resin, appearing more transparent but with damaged internal structure. Type C has been artificially dyed with unnatural colors. Type B+C has been both acid-washed/filled and dyed. When purchasing, choose Type A jadeite with certification from authoritative institutions.

Texture and transparency (zhong shui) are core quality indicators of jadeite. "Zhong" refers to texture fineness, "shui" refers to transparency. From highest to lowest: Glass type (transparent like glass), Ice type (semi-transparent like ice), Glutinous Ice type, Glutinous type (slightly transparent like glutinous rice), Bean type (visible grains). Methods: 1) Use a strong flashlight to observe light transmission; 2) Look for fluorescence effects on the surface; 3) Feel if the texture is fine and uniform. Better texture and transparency means higher value.

Key points for choosing a jadeite bangle: 1) Size: Measure the widest part of your palm, choose an inner diameter that just fits; 2) Texture: Prioritize ice type or above with good transparency; 3) Color: Imperial green is most expensive, vivid green offers good value; color should be rich, bright, pure, and even; 4) Flaws: Carefully check for cracks (fatal defect), stone lines, and cotton inclusions; 5) Shape: Round bangles are classic, oval bangles suit slender wrists; 6) Certificate: Must have Type A certification from authoritative institutions. For limited budgets, glutinous type with floating flowers offers good value.

Jadeite comes in diverse colors: Green series (Imperial green, vivid green, true vivid green, full green, spicy green, oily green, flower green), Purple series (lavender, pink purple, blue purple), Red series (red jadeite), Yellow series (yellow jadeite), Colorless series (ice colorless), Black series (black jadeite), Blue series (blue water), Combination colors (spring with color, fortune-prosperity-longevity). Imperial green is the most precious, requiring rich, vivid, pure, and even color. Top imperial green jadeite can cost tens of thousands per gram. True vivid green and full green are next in value.

Stone gambling is a unique form of jadeite rough stone trading where buyers judge internal quality based on external skin characteristics and bid before the stone is fully cut. It is extremely risky, with the industry saying "one cut can make you poor, one cut can make you rich." Judgment factors include: skin shell characteristics, pine flowers (green indicators), python bands, and fog layers. Window opening and skin rubbing can partially reduce risk but uncertainty remains. Regular consumers should avoid stone gambling and buy cut material or finished products. Professional stone gambling requires extensive experience and substantial capital.

Key information on jadeite appraisal certificates: 1) Conclusion: The most important field, should read "Jadeite (Type A)" or "Natural Jadeite"; 2) Total weight: Weight in grams; 3) Refractive index: Should be 1.66 (spot reading) for jadeite; 4) Density: Should be approximately 3.33 for jadeite; 5) Magnification examination: Describes internal structural features; 6) Infrared spectroscopy: Confirms whether polymer filling is present; 7) Testing institution: Should be a nationally recognized testing institution (such as NGTC, GIC, etc.); 8) Certificate number: Can be verified on the institutions website. Note: Certificates only prove natural origin, not quality level or value.

Jadeite prices are affected by multiple factors: 1) Texture/transparency: Glass type > Ice type > Glutinous type > Bean type; 2) Color: Imperial green is most expensive, color should be rich, bright, pure, and even; 3) Flaws: Cracks severely affect value, cotton and stone lines also reduce price; 4) Size: Same quality, larger size means exponentially higher price; 5) Craftsmanship: Master carving can significantly increase value; 6) Form: Bangles > Pendants > Ring faces > Display pieces (same material); 7) Origin: Myanmar jadeite is most recognized; 8) Market supply/demand: Myanmar auction prices, economic conditions. Top jadeite (imperial green glass type bangles) can reach tens of millions of yuan, while ordinary jadeite ranges from hundreds to thousands.

Identifying and authenticating natural jadeite requires a combination of visual inspection, physical tests, and advanced gemological analysis. Natural jadeite has a smooth, waxy luster and a dense, tough texture that distinguishes it from other green stones. One common method is the scratch test; jadeite is quite hard, scoring around 6.5 to 7 on the Mohs scale, so it should resist scratching by steel. However, this test alone is not definitive. Professional gemologists often use spectroscopic analysis, refractive index measurements, and specific gravity tests to confirm authenticity. Because jadeite is frequently treated or synthesized, it's crucial to rely on certified gem labs or trusted appraisal tools. GlobeJade's AI appraisal tool offers advanced image recognition and spectral data analysis to help enthusiasts authenticate jadeite stones accurately. This tool can detect common treatments like dyeing or polymer impregnation, providing a reliable preliminary assessment before professional certification. For collectors, obtaining a certificate from a reputable gemological institute remains essential for verifying the jadeite’s natural origin and treatment status.

The quality grading and evaluation of jadeite focus primarily on color, transparency, texture, and craftsmanship. The most prized jadeite color is the vivid emerald-green known as “Imperial Jade,” which commands the highest prices. Other desirable colors include lavender, red, yellow, and white, each with varying market values. Transparency plays a significant role; jadeite ranges from opaque to semi-transparent, with higher translucency generally indicating better quality. Texture refers to the fineness and uniformity of the jadeite's crystalline structure; a smooth, fine-grained texture without visible inclusions or grainy spots is preferred. Additionally, the presence of cracks or fractures reduces value. Craftsmanship and carving intricacy also affect the overall grade, as skilled artisanship enhances beauty and desirability. Grading systems often use a combination of these factors to classify jadeite from commercial to top-grade. GlobeJade’s AI appraisal tool integrates image analysis and color quantification to provide an objective quality assessment, helping collectors and buyers understand a stone’s grade before purchase. Understanding these criteria is essential for making informed decisions and recognizing high-quality jadeite in the market.

Jadeite prices vary widely, ranging from as low as $10 per carat for commercial-grade material to over $30,000 per carat for top-quality Imperial Jade. Several factors influence the value of jadeite. Color is the most critical determinant; the rare, vivid emerald-green Imperial Jade commands premium prices. Transparency is another key factor, with semi-transparent or translucent jadeite valued higher than opaque varieties. Texture and purity also affect pricing—fine-grained, inclusion-free jadeite is more valuable. Size matters too; larger pieces or carvings can exponentially increase value due to rarity. Treatment status is crucial; untreated, natural jadeite (known as Type A) is far more valuable than dyed or polymer-treated stones (Types B and C). Origin also plays a role, as jadeite from Myanmar is generally considered superior. The global market demand and cultural significance in Asian countries further drive prices. GlobeJade’s AI appraisal tool helps buyers estimate jadeite value by analyzing quality parameters and market trends, assisting collectors in understanding fair pricing. When purchasing jadeite, it’s essential to request certification and consider all these factors to make an informed investment.