Three letters decide the price of an oud oil, and no institution defines them. Before comparing two bottles by their grade, it is worth knowing what the grade is measuring and what it is not.
No Authority Grades Oud
There is no board, no standard and no laboratory certification behind A, AA and AAA. Unlike diamonds or olive oil, agarwood has no external grading body. Each house grades its own material, which means a grade is a seller's statement about their own stock, not a comparable unit between sellers.
This matters practically: an AAA from one distiller can sit below another distiller's AA. Comparing grades across houses tells you almost nothing. Comparing grades within one house tells you a great deal, because the same person applied the same judgement to both.
What the Grade Actually Tracks
Where the letters are used honestly, they follow the resin content of the wood that went into the still. Agarwood is not a wood species that happens to be fragrant; it is the defensive resin an Aquilaria tree produces around a wound. More resin in the heartwood means more aromatic material per kilo, a longer and more complex distillation, and a scarcer input.
Three consequences follow, and they are the only ones a grade reliably predicts:
Depth rather than strength. A higher grade is not louder. It carries more distinct compounds, so the scent moves through more stages on skin instead of presenting one note and holding it.
Duration of the evolution. A lower grade can last just as long. What lengthens with grade is the time before the scent settles into its final phase.
Price, steeply. Resin content does not scale linearly with cost, because the trees that carry it are rarer and older. This is why the step from one grade to the next is a multiple, not a percentage.
What the Grade Does Not Tell You
It says nothing about whether an oil suits you. Grade measures material scarcity, not agreement with your skin or your taste. A great many people prefer a Grade A they find legible to a Grade AAA whose complexity they cannot follow yet, and that preference is not inexperience: it is a real judgement about what they enjoy wearing.
It also says nothing about purity. A grade describes the input wood; adulteration happens after distillation. An oil can be AAA-grade material diluted into a carrier, and the letters will still be on the label. Purity is a separate check, covered in how to tell real oud from synthetic.
And it says nothing about origin quality on its own. Neither region outranks the other: Lombok and Kalimantan produce different profiles rather than better and worse ones. Region shapes the character; grade shapes the concentration. For the profiles themselves, what oud actually smells like is the better starting point than any letter.
What Each Grade Costs
The step from one grade to the next is a multiple, so the letter you choose moves the price far more than the size you choose. Priced per millilitre, the three pure oils run as follows.
| Collection | Grade | Price per ml | Origin |
|---|---|---|---|
| Origins | A | €45 | Lombok, Indonesia |
| Heritage | AA | €90 | Kalimantan, Indonesia |
| Reserve | AAA | €129 | Kalimantan Premium |
Within a single oil, the per-millilitre price eases with volume: Origins is €45 for one millilitre, €43 per millilitre at five, and €40 per millilitre at ten. That movement is small next to the jump between letters. Across Europe, shipping is complimentary from €100.
Choosing Without Overpaying for a Letter
Buy the grade that matches how much oud you have already worn, not the highest one you can afford.
If this is your first pure oud, start at Grade A. Origins, from Lombok, is dark resin, leather and an animalic warmth with a cigar-box depth. It is legible: you can name what you smell, which is exactly what a first oud should allow. One millilitre is enough to find out whether the material is for you, worn a micro-drop at a time.
If you already wear oud and want more dimension, Grade AA is the step that changes the experience rather than the intensity. Heritage, from Kalimantan, is richer and earthier, with a complexity that unfolds instead of arriving at once.
If you collect and know what you are listening for, Grade AAA rewards attention. Reserve, Kalimantan Premium, is dark and intense, and its evolution runs well past ten hours.
The mistake worth avoiding is buying three millilitres of AAA as a first purchase. Not because it is not excellent, but because a palate that has never worn oud cannot yet hear what it paid for. A millilitre of each, bought in sequence over months, teaches more than one large bottle bought at once.
For prices across the range see the oud oil price guide, and for the vocabulary sellers use around grades, attar names a format, not a grade.
Woudya grades its own stock and states the origin of every oil. Origins is distilled from Lombok wood. Heritage and Reserve come from Kalimantan. All three are undiluted with nothing added, bottled in France and shipped tracked. Browse the collection.