New Zealand pāua shell: colour, origin and jewellery
Pāua is the Māori name used for New Zealand abalone. Haliotis iris, the blackfoot pāua, is native to New Zealand. It occurs around the country’s coasts, including the North Island, South Island, Stewart Island and Chatham Islands; it is not confined to the South Island.

01A marine shell, not a mine
Pāua is a marine mollusc associated with rocky coastal habitats. The shell is a biological material, not a mineral extracted from a mine. Our pāua is attributed to Stewart Island.
02Why does pāua change colour?
The shell’s nacre has fine layered structures that interact with light, creating iridescent blues, greens and other colours. The appearance changes with the angle of the light and the cut. Colour alone does not show which island or coast a shell came from.
03Choosing pāua jewellery
Compare the photographed shell pattern in the ring or necklace. Pāua is one of two materials in our collection from outside Australia; the other is lapis lazuli from Afghanistan. New Zealand has managed commercial pāua harvesting through its Quota Management System since 1986–87, with its own quota area for Stewart Island (PAU 5B).
Stewart Island / Rakiura: a coastal source, not a gemstone mine
Stewart Island, also known as Rakiura, belongs to a wider New Zealand coastal story. Pāua are living shellfish associated with rocky habitats; the colourful jewellery material comes from their shell. Calling this source a mine would erase that difference. The locality describes the source attributed to Oli&J’s shell, not the only place where pāua lives.
Fisheries New Zealand identifies Stewart Island as the PAU 5B management area. The wider pāua fishery entered the Quota Management System in 1986–87, and the former southern PAU 5 area was divided in 1995. That history provides context for managed harvesting, but a regional quota alone is not evidence about the harvest date or supply chain of one jewellery piece.
Why one cut of pāua never looks exactly like another
Shell is layered biological material. As the cut crosses those layers, the visible pattern and iridescence change. A photograph captures one angle of the polished surface; moving the piece under light can reveal a different balance of blue, green and other colours. That effect is structural, not proof that a shell came from a particular island.
The Stewart Island link opens a shell piece in the exact-stone picker. Compare the actual surface rather than a generic colour swatch, then consider the mounting and finish. Its coastal story remains available in the provenance record while you choose the piece.
Questions about this material
Is pāua found only on the South Island?
No. Its distribution includes several New Zealand coastal regions and islands.
Is pāua a mined gemstone?
No. It is shell from a marine mollusc, used as a decorative jewellery material.