1. By Geographic Origin
Indian Agarwood (Aquilaria malaccensis): Known for its deep, earthy aroma and high quality.
Cambodian Agarwood (Aquilaria crassna): Prized for its sweet, fruity, and spicy scent.
Vietnamese Agarwood: Renowned for its rich and complex fragrance, considered among the finest.
Thai Agarwood: Known for its unique resin profile and woody aroma.
Borneo Agarwood (Kalimantan, Indonesia): Characterized by a balanced, soft, and deep aroma.
Malaysian Agarwood: Valued for its sweet, balanced fragrance.
Papua New Guinea Agarwood: Produces lighter resin with a unique scent.
2. By Grade
Kyara: The highest grade of agarwood, mostly found in Japan, characterized by its exquisite and rare scent.
Super Grade: Contains high resin content with a strong and lasting aroma.
Grade A, B, and C: Lower grades with varying levels of resin content and scent quality.
3. By Resin Content
High-Resin Agarwood: Dense and heavy due to a higher concentration of resin, producing a strong fragrance when burned or distilled.
Low-Resin Agarwood: Lighter and less aromatic, usually considered of lower quality.
4. By Type of Processing
Natural Agarwood: Formed naturally over decades or centuries due to fungal infection in the Aquilaria tree.
Cultivated Agarwood: Induced artificially by human intervention through inoculation methods.
Sinking Agarwood: Dense with resin, heavy enough to sink in water, indicating superior quality.
5. By Scent Profile
Sweet: Often associated with Cambodian and Vietnamese agarwood.
Woody: Common in Indian and Thai agarwood.
Fruity or Spicy: Unique to certain regions like Borneo.
The variety and complexity of agarwood types make it a highly prized and valuable material in perfumery, traditional medicine, and religious practices.


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