Direct answer: Begin with arithmetic. A piece of 奇楠 (qínán) costs orders of magnitude more than ordinary agarwood; when the asking price sits at ordinary-agarwood levels, the label has already failed. Seller accountability and the smell released by gentle heat support that first filter; they do not replace it.
Key facts
- Identity: the most resin-rich grade of Aquilaria wood, pliable under a blade and often aromatic without heat.
- Market position: priced orders of magnitude above ordinary agarwood, which is why fakes cluster here; the bands quoted below give the rough spread.
- Weak checks: density, color, and a loud cold smell can all be manufactured.
- Stronger path: species-and-grade answers from an accountable seller, aroma under gentle heat, batch-linked papers, and lab work when the sum warrants it.
The Price Gap Explains the Fakes
Direct answer: Counterfeiting follows margin, and this grade offers one of the widest margins in the aromatic trade — a substitute that costs little, sold at a price reserved for the rarest grade.
The arithmetic is simple. A forger needs cheap wood, a treatment that imitates weight or scent, and a buyer willing to believe a summit label. The difference between the substitute’s cost and the claimed price is the entire incentive → the wider that difference, the more effort the fake justifies → the summit occupies the ladder’s top rung, so the most elaborate treatments gather there. Nobody oil-injects a cheap sandalwood stick, because the return would not cover the effort.
The bands, roughly and in RMB per gram: herb-grade chips at 0.4–1.4; usable burning wood anywhere from tens to thousands depending on grade and origin; 奇楠 around 3,000–8,000; the top white material above 16,000. Directional figures drift with year and source, but the spacing between the bands is stable. A bead carrying the name at a herb-grade figure is not a find — it is a category mistake, and the mistake is the warning.
Three Questions, Asked in This Order
Direct answer: Ask the seller to name species, origin, and grade first; smell the piece warmed second; compare price to grade last — each step is cheaper than the one after it and filters cases the later steps would otherwise have to catch.
Put the first question in plain words: which Aquilaria species is this, where did it come from, and is the seller calling it 沉水 or 奇楠? A merchant who cannot answer all three has failed the cheapest filter available, and the failure costs nothing to discover. Then comes the sensory question: how does it behave under gentle warmth, as opposed to flame? A flat, cosmetic, or charred answer points to a surface treatment, while a layered and shifting answer is at least consistent with the grade. The third is arithmetic, and it comes last because it only works as a backstop once the first two have narrowed the field.
The order matters because the checks are not equal. The seller conversation removes most obvious fakes before anything is handled. The warmed aroma catches oils and applied fragrances that no photograph can reveal. The price comparison catches what slipped through, but only if the earlier steps have already reduced the noise.
Why the Familiar Tests Fail
Direct answer: The sink test, the color check, and the cold-aroma check each measure something a forger can add to cheap wood, while none measures the resin distribution that makes the grade what it is.
Take the sink test first. A forger injects oil into porous wood under pressure → the oil adds mass and darkens the piece → the piece sinks → the buyer reads density as resin content → the test confirms weight, not grade. The chain is deliberate: the fake is built to pass the check that buyers trust most.
Color fails for a similar reason. Dye can place any of the traditional color names on a piece in an afternoon → the five-color hierarchy is itself disputed, with sources disagreeing over whether some colors are separate grades or stages of one material → a color word is a vocabulary item, not a measurement. Traditional belief surrounds the ladder; it does not certify the rung. The treatments have names in the trade — oil-boiling, pressure injection, and chemical soaks — and each one targets a different signal: weight, color, or cold scent.
Cold aroma is the subtlest failure. Genuine material can smell at room temperature because aromatic material sits throughout the fiber → the cold scent is soft, layered, and slow to open. A surface fragrance is already fully “on” when the jar is opened → it reads loud and one-note → strength, not quality, is what the buyer notices. The two can both be fragrant cold, so the check has to read the shape of the smell, not its volume.
The Limits of a Visual Check
Direct answer: A camera records surfaces. Species, resin load, and whether the aroma is natural are not surface properties, so no photograph or in-person glance can settle them.
The gap is categorical. Eyes receive color, texture, and shape; the defining properties are botanical and chemical. A dyed piece and a genuine piece can be made to look alike → a visual inspection treats them as equivalent → the claim survives the look but not a test. Visual checks retain a narrow use: uniform color that reads painted, texture that reads compressed, grain that looks foreign. A ten-power loupe, a steady lamp, and a written checklist expose more than a confident story does. Run a fingertip along the cut edge; a waxy drag is worth noting, though it settles nothing. Those are triage signals for obviously wrong material.
What follows is awkward for anyone who prefers to buy on appearance. At these prices, buying on appearance alone is structurally exposed, because every visible property can be imitated while the decisive ones stay invisible. A clean photograph is not evidence of authenticity; it is evidence that the seller owns a camera.
Documents That Attach to an Object
Direct answer: Paper only helps when it is tied to the object in front of you: a written species claim, a test report that names the batch, and CITES-level paperwork for a genus whose trade is regulated.
Start with the species statement. A written Aquilaria claim converts a spoken description into a term someone can be held to; a verbal claim evaporates when the sale ends. Next, batch linkage: a test report must name the specific batch in front of you. A generic “our materials are tested” page describes a capability, not the piece in your hand. Last, the CITES angle: the genus is listed, so lawful trade comes with species-level papers, and those papers give the material an identity beyond the seller’s word.
The hierarchy scales with value. The arithmetic belongs at the front of the queue because asking costs nothing. Documented seller accountability comes second because it converts claims into records. Laboratory testing comes last, where the sum at stake makes the cost rational. Each layer covers a failure the previous one leaves open.
The Budget Fork
Direct answer: A limited budget presents two honest options — good 沉水-grade ordinary agarwood, or a “cheap 奇楠” that is almost certainly treated wood — and confusing them is the most expensive mistake in the market.
| Signal | “Affordable 奇楠” | Good 沉水 ordinary agarwood |
|---|---|---|
| What is claimed | Summit grade at a low price | Its actual grade |
| Counterfeit risk | Highest — the price gap attracts fakes | Much lower |
| What the money buys | Usually treated substitute wood | Genuine resinous agarwood |
| Price honesty | Contradictory | Consistent |
| Verifiability | Difficult; the claim is the problem | Species and origin can be named |
My own rule: when the real grade sits outside the budget, put the money into wood you can check rather than into a label you cannot. A well-sourced 沉水 piece gives most of the sensory pleasure with far less exposure, and the reason is structural — the gap that creates the desire is the same gap that funds the fakes.
Editorial judgment, not a documented fact.
The One-Way Logic of Price
Direct answer: The number on the tag can only eliminate. A figure too low for the grade disproves the claim; a figure that matches says nothing about whether the wood is what the seller says.
The asymmetry is easy to miss. A high price proves only that someone was willing to ask it; counterfeiters charge high prices precisely because the market expects them, and convincing paperwork can accompany a convincing fake. A low price, by contrast, does real work: genuine material cannot honestly sell at ordinary-agarwood levels, so the bargain eliminates itself.
The conversation and the warm sniff therefore precede the arithmetic, not the other way round. Price is the backstop that catches what slips through, and it catches only in one direction. Treat it as a veto and the logic holds; treat it as a vote of confidence and the same number becomes part of the con.
Editorial judgment, not a documented fact.
A Field Sequence for the Seller’s Table
Direct answer: Run the checks in a fixed order — seller answers, gentle heat, structure, paperwork, price — and let each step decide whether the next one is worth doing.
Begin with the questions. Put three requests to the seller: a species name, a place of origin, and the grade they are claiming. A fluent, specific answer is a good sign; a vague one ends the conversation cheaply. Next, warm a small fragment gently, below combustion, and smell at the low end first. A genuine piece tends to open in stages, sweet and layered; a treated piece often reads flat or cosmetic from the first second and does not develop as the heat rises.
Then handle the material. Saturated wood is softer than ordinary agarwood, and a thin shaving may curl rather than snap; the grain should look fine and interwoven rather than open and uniform. These are consistency signals, not proof, because a surface treatment can soften and scent a cheap core. Ask for paperwork next, and check that the report names your batch. Finally, compare price to claim. A piece that clears every earlier step and then carries a bargain price has not passed; it has contradicted itself at the last gate.
The Color Names, Held Loosely
Direct answer: 奇楠 is traditionally described in five colors — white, green, purple, yellow, and black — and the names are useful for conversation but unreliable as a ranking, because sources disagree on whether some are separate grades or stages of one material.
| Name | Chinese | Traditional reading |
|---|---|---|
| White 奇楠 | 白奇楠 | Often the most prized; soft and fragrant cold |
| Green 奇楠 | 绿奇楠 | Deep and layered; a common reference point |
| Purple 奇楠 | 紫奇楠 | Disputed — treated as its own grade by some, a stage of green by others |
| Yellow 奇楠 | 黄奇楠 | Warmer and thinner in some accounts; also disputed |
| Black 奇楠 | 黑奇楠 | Denser and darker; sometimes grouped with ordinary agarwood |
This ladder is traditional belief, not a settled classification, and color is the easiest property for a forger to add. Use the names to understand what a seller is claiming, then verify the claim through species, warmth, and paperwork. A color name belongs to description, not to proof.
What a Lab Can and Cannot Decide
Direct answer: A laboratory can identify the wood and measure its resin load, but “奇楠” is a market grade with sensory and traditional criteria, so a report supports a claim rather than awarding the title.
Sort the evidence by what it actually covers. Species identification — through wood anatomy or genetic markers — establishes which tree the sample came from, not how saturated it is. Resin or extractive measurement shows how much material has accumulated, not whether the aroma is layered or flat. Adulterant screening can detect added oils or dyes, but only if the laboratory is asked to look for them. The sensory grade itself sits outside the instrument’s reach: it depends on how the piece behaves under gentle heat, which is a trained-nose judgment rather than a number.
| Evidence | What it can confirm | What it leaves open |
|---|---|---|
| Species statement | The name of the tree claimed | Whether the piece matches the claim |
| Batch-linked lab report | Properties of the tested batch | Whether your piece is from that batch |
| CITES documentation | That trade in the genus is lawful | Grade or authenticity of the specific piece |
| Gentle-heat aroma | The current sensory profile | Whether the profile is natural or applied |
That table is the reason a single document never settles a purchase. Each row covers one link; the chain is what carries weight. A laboratory report that names your batch and confirms species is strong evidence. A certificate that simply repeats the word 奇楠 is a description of a test someone once ran, not a verdict on the object in your hand.
Terms Worth Settling Before Payment
Direct answer: The most protective authentication step costs nothing and happens before money moves: put the species, grade, batch, and remedy in writing, so a later dispute has something to stand on.
Once a description is written down, it stops being a conversation and becomes a term. Ask the seller to state the Aquilaria species, the origin, the grade, and the weight in the invoice or order confirmation → those four lines are checkable later, and a seller who resists writing them has revealed something. Ask for the batch-linked report and for permission to have an independent laboratory test a sample → the second request matters because a report you cannot match to your piece proves little.
Settle the remedy as well. If an independent test contradicts the stated species or grade, what happens? A return right, a refund, or a credit is worth more than any assurance offered verbally. Payment method matters for the same reason: a channel with recourse gives the terms teeth. None of this verifies the wood by itself; it changes the consequences of being wrong, which is often the difference between a recoverable mistake and a loss.
Samples, Seals, and the Substitution Problem
Direct answer: When the piece is too far away to handle, the sample is the only part of the transaction you can actually test — so it has to come from the lot you are buying and be preserved well enough to compare later.
Ask for a cutting from the actual lot, not a photograph of “representative” material. A sample that cannot be tied to the lot is a demonstration, not evidence. Once it arrives, photograph it beside a scale and a dated label, keep it sealed and away from scent, and record the seller’s description next to it. When the full piece arrives, compare grain, softness, and warmed aroma against that reference; substitution is the quiet failure this guards against. Keep the invoice, description, courier receipt, and batch number together — a paper trail is easier to rely on than a recollection. A seller who welcomes a loupe, a scale, and a second opinion is easier to trust than one who resists a delay. Provenance is a ledger, not an anecdote. Records outlast recollection.
Summary
- If the number fits ordinary wood, the name on the label is wrong.
- Ask who is selling, what they call the material, and how it behaves when warmed; each answer narrows the field.
- Density, dye, and a strong cold smell are easy to add and hard to read as evidence.
- Species, saturation, and natural aroma stay invisible to a camera.
- A report is only useful when it points to your batch; a generic one points to nothing.
- With a limited budget, buy verifiable 沉水 wood rather than a cheap piece of the summit.
FAQ
Q: How should a buyer screen a piece step by step?
Run the checks as a sequence, not as one decisive experiment. Begin with the seller’s vocabulary: a name for the species, a name for the origin, a name for the grade. Fluency there is not proof, but failure there ends the inquiry cheaply. Then warm a fragment below combustion and follow the smell as it opens; a genuine piece usually shifts through layers, while a treated one stays flat or turns cosmetic. Finish with arithmetic: if the number fits ordinary agarwood, the label cannot be right. Each step removes a class of fake that the next step would otherwise have to handle.
Q: Does weight prove anything one way or the other?
Density answers a narrower question than buyers want. A piece that will not sink is almost certainly short on resin, which makes the test useful as a rejection tool. A sinking piece, though, has only shown that it is heavy — and oil injected under pressure supplies weight cheaply. Since the treatment is designed around this exact check, a positive result carries almost no information. Use the test to reject the obvious; do not use it to accept.
Q: What is the sensible alternative on a limited budget?
Put the money into a grade that can be verified rather than a label that cannot. A well-chosen 沉水 piece of ordinary agarwood gives the resinous, sweet character that draws people to the family, at a level where paperwork and an accountable seller are realistic expectations. The counterfeit incentive is also weaker lower down the ladder. What to avoid is the middle temptation: a piece priced like a bargain and labelled like a summit. A low figure attached to a summit name is the clearest warning the market offers.
Q: Why is the supply so thin?
Scarcity is structural. The grade requires wood that has become saturated enough to turn soft, pliable, and aromatic without heat; that outcome is uncommon and slow, and not every tree produces it. Demand is global and supply is limited further by CITES rules around agarwood trade. The result is a price floor in the thousands of RMB per gram and a ceiling far above it for the top color grades.
Q: Is cost any evidence at all?
Price is evidence of asking, not of identity. A forger can charge a realistic sum — often must, to be believed — and paperwork can be fabricated or borrowed from another batch. What price can do is eliminate: genuine material cannot be sold at medicinal-chip prices, so a low number is decisive. A high number is only a reason to keep asking questions.
Sources
- Chinese trade commentary and consumer reports on 奇楠; used for heuristics, not as a price source.
- GBIF species page — taxonomy.
- CITES listing — legal trade status.
- Research notes: docs/research/agarwood-chenxiang-notes.md (R-001).
Related Resources
- Agarwood — how the resin forms and where the top grade sits.
- Qinan explained — the grade itself, separate from buying.
- The production sequence — where binding and forming sit before a finished stick exists.
- Authentication database — comparable checks for other materials.
- Grading guide — the tiers a fake label borrows.