Jade Identifier —
Jadeite, Nephrite, or Simulant?
Upload a photo of your jade piece — jewellery, carving, bangle, or rough — and our AI identifies whether it is jadeite, nephrite, or one of the many jade simulants, assesses quality and treatment level, and gives you an expert-level result in seconds. Free, no sign-up required.
What You Get in Every Result
- Jade type — Jadeite / Nephrite / Simulant
- Confidence percentage with full visual reasoning
- Quality grade — Imperial, Commercial, B-grade, C-grade indication
- Treatment assessment — bleaching, polymer filling, dyeing
- Colour and translucency description
- Geographic origin indicators — Myanmar, Canada, China, New Zealand
- Common jade simulants identified
- Collector and market value indication
- Care advice and authenticity next steps
Jade Identifier
Identify jade (jadeite vs nephrite) vs common look-alikes such as serpentine, aventurine, glass, and dyed stones
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Description
Origin / formation
Is Jade
Type / hint
Texture / structure
Translucency
Treatment
Hardness / toughness
Probable origin
Hardness (Mohs)
Luster
Rarity
Relative value
Notable localities / regions
Typical colours
Key properties
Similar gemstones
Alternative identifications
Note: Jade confirmation (jadeite vs nephrite) and treatment checks often require gem lab testing. Photo ID is a starting point, not an appraisal.
What Is Jade — and Why Are There Two Completely Different Stones?
Jade is not a single mineral — it is a commercial term applied to two entirely different minerals that happen to share similar appearance and cultural importance. Jadeite and nephrite were both called jade long before modern mineralogy existed to distinguish them, and the name stuck. Understanding which mineral you have is the single most important step in jade identification because the two minerals have very different physical properties, origins, and market values.
Jadeite is a pyroxene mineral (sodium aluminium silicate, NaAlSi₂O₆). It is rarer, harder, and capable of producing more intense colour than nephrite. The finest jadeite — Imperial Jade — is a vivid, semi-transparent emerald green that commands extraordinary prices in Asian markets. Myanmar (Burma) is the dominant source of gem-quality jadeite.
Nephrite is an amphibole mineral (calcium magnesium iron silicate). It is tougher than jadeite — an interlocking fibrous structure makes it extraordinarily resistant to fracture — and occurs across a much wider geographic range. Nephrite was the jade of ancient China, New Zealand’s Māori culture, and pre-Columbian Mesoamerica.
Toughness vs hardness — nephrite is tougher than jadeite
Hardness and toughness are different properties. Jadeite is harder (Mohs 6.5–7) than nephrite (Mohs 6–6.5) — meaning it resists scratching better. But nephrite is tougher — it resists breaking and fracturing better due to its interlocking fibrous microstructure. Nephrite is in fact one of the toughest natural materials known, which is why it was used for tools and weapons by Neolithic and pre-Columbian cultures. A nephrite axe head survives enormous impact forces that would shatter a diamond or sapphire.
Jadeite vs Nephrite — A Side-by-Side Comparison
Visually, jadeite and nephrite can appear very similar — both occur in green, white, lavender, and other colours, and both have been carved and polished for millennia. These are the key differences that distinguish them physically and commercially.
“The single most reliable visual distinction between jadeite and nephrite is surface texture under magnification. Jadeite shows a granular, interlocking texture of individual crystals on a polished surface — sometimes described as ‘orange peel’ texture. Nephrite shows a smooth, waxy surface from its fibrous structure. This difference is often visible under a 10× loupe on a freshly polished surface.”
Jadeite Quality Grades — From Imperial to C-Grade
The jadeite market — dominated by Chinese buyers — uses a grading system based on colour, translucency, texture, and treatment. Understanding these grades is essential for interpreting your result and understanding value differences that can span several orders of magnitude.
B and C grade jade is extremely common — and often sold without disclosure
The majority of commercially available jade jewellery — particularly inexpensive bangles and pendants — is B-grade or C-grade material. B-grade jade looks beautiful when new but the polymer fill yellows and the structure weakens over time. C-grade dye fades, often becoming patchy and unattractive. Both must be disclosed under gemological standards but rarely are at the point of sale. Our AI flags visual indicators of treatment, but definitive B/C grade determination requires laboratory testing with infrared spectroscopy and UV examination.
Imperial Jade — The Most Valuable Jade
Imperial Jade is the term for the finest jadeite — a vivid, semi-transparent to transparent emerald green with exceptional chromium content and a lively, glowing quality. True Imperial Jade is among the most valuable gemstones in the world in the Asian market. A fine Imperial Jade bangle of significant size can sell at auction for millions of dollars. The colour must be uniform, vivid, and neither too yellow-green nor too blue-green. The translucency must allow light to glow through the stone. The texture must be fine-grained and smooth. All three properties must align to qualify as Imperial grade.
Jade Treatments — Understanding the A/B/C Classification
The A/B/C grading system in jade refers specifically to treatment level, not quality level as in diamond grading. This causes significant confusion — “B-grade jade” does not mean moderately good jade; it means structurally treated jade. Here is a complete breakdown of what each treatment involves and how our AI screens for it.
| Treatment | What Is Done | Visual Indicators | Value Impact |
|---|---|---|---|
| Waxing (Type A) | Surface wax applied after polishing to enhance luster and fill microscopic surface pits. Traditional and fully accepted. | No distinguishing features — acceptable treatment. High luster surface. | No impact — standard practice |
| Bleaching + Polymer (B-Grade) | Acid bleach removes iron staining and brown patches; polymer resin fills the resulting voids to restore structural integrity and transparency. | Abnormally even colour; slightly chalky surface as polymer ages; crazing in older pieces; greenish iridescent flash in fractures under UV. | Serious — value reduction of 70–90% |
| Dyeing (C-Grade) | Artificial colour introduced by immersion in dye solution, sometimes after bleaching to open pores. May be combined with B-treatment. | Colour concentrated in fractures and grain boundaries; unnaturally even colour without natural variation; fading visible in older pieces. | Serious — value near zero as collectible |
| Surface Coating | Thin layer of coloured lacquer or resin applied to surface to enhance colour. Particularly common in lower-grade carved pieces. | Colour sits on surface rather than within; scratches expose uncoloured interior; waxy or plastic-like surface feel. | Deceptive — full disclosure required |
| Heat Treatment | Heating used to alter colour in some jadeite — can enhance brownish tones or create orange-red “hongshan” colouration. | Subtle colour changes; may show stress fractures if heated too rapidly. Less common than other treatments. | Moderate — should be disclosed |
| No Treatment (Natural) | Absolutely no chemical or structural treatment — colour and structure entirely natural. Only surface wax acceptable. | Natural colour variation with lighter and darker patches; natural inclusions and growth features; vibrant luster consistent through stone. | Premium — commands full market price |
Jade Simulants — The Most Impersonated Gemstone
Jade is arguably the most widely faked gemstone in the world, with dozens of materials sold under jade trade names or simply misrepresented as jade. The commercial demand — particularly in Asian markets — combined with jade’s relatively modest hardness and wide colour range creates the conditions for widespread substitution.
Jade Across Cultures — Why This Stone Is Uniquely Important
No gemstone in human history has been as culturally central to as many civilisations as jade. Understanding this context helps explain the enormous market demand — particularly in Asia — and why authenticity matters so profoundly to buyers.
- China. Jade has been the most important cultural material in Chinese civilisation for at least 7,000 years — far longer than any recorded use of gold or diamonds. The Chinese word for jade, yù, appears in thousands of Chinese proverbs and expressions. Confucius enumerated eleven virtues of jade — including wisdom, benevolence, and courage. Imperial seals were carved from jade; the deceased were buried with jade objects to protect them in the afterlife. Today, a fine Imperial Jade bangle given from mother to daughter at marriage carries immense cultural weight.
- Mesoamerica. The Olmec, Maya, and Aztec civilisations valued jade above gold. Maya rulers were buried with jade mosaic death masks. Jade was associated with maize, water, and life itself — the colour green was sacred. The Aztec word for jade, chalchíhuitl, was also used for all precious things.
- New Zealand — Pounamu. New Zealand nephrite jade — called pounamu or greenstone — is among the most culturally significant materials in Māori culture. Hei-tiki pendants, mere clubs, and adzes carved from pounamu were treasured taonga (treasures) passed down through generations. Pounamu increases in spiritual power as it is passed between people. Under the Treaty of Waitangi settlements, pounamu belongs to Ngāi Tahu as a people.
- Pre-Columbian North America. Jade was worked by numerous North American cultures. British Columbia nephrite was traded widely. The large nephrite boulders of Wyoming were used as tool sources by many cultures across the continent.
Why jade bangles are so important in Chinese culture
The jade bangle is one of the most significant jade objects in Chinese culture — worn by women daily, often given by mothers to daughters at marriage. A fine Imperial Jade bangle should be a single continuous ring of natural, untreated jadeite. The bangle must survive the hand-fitting process — a painful procedure in which the hand is temporarily compressed to slip the bangle over — which means it must be genuine solid natural jade. The emotional and cultural significance of jade bangles explains why B-grade and C-grade jade detection matters so profoundly to buyers.
Frequently Asked Questions
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