Light-first lapidary, since 1926
One workshop in Guwahati, one idea worked at for a century: cut every stone to answer the light in the room, then measure what it does.
The Aureline cut
The house geometry: 71 facets, cut by hand to a tolerance the eye can read across a table. It privileges return of light at arm's length over the numbers a loupe rewards.
A hundred years of one idea
Aureline opens in Fancy Bazar, Guwahati, as a diamond-cutting workshop, taking commissions from the local trade.
The first house cut is registered, a 64-facet brilliant angled for even north light rather than the loupe.
The house takes its own premises on G.S. Road and begins showing finished jewellery under its own name.
Aviary begins with a single wing on trembler settings, the workshop's first narrative piece.
The cut reaches its current 71-facet geometry after fifteen years of refinement.
The light signature is standardised: every stone measured under daylight, gallery light and lamplight.
Cutting, setting and polishing are brought under one roof in Guwahati.
Around forty pieces leave the bench each year, each with its recorded signature.
The light signature
Since 2008, every finished piece is measured under three standard conditions and delivered with the result. It is the house's answer to choosing a stone by certificate alone.
Daylight
Even north light at midday. The everyday test, and the one the cut is angled for.
Gallery light
A single warm downlight at 3000K, the way a piece reads across a dinner table.
Lamplight
Low, moving flame, where fire matters more than return and old cuts often win.
A sample card. Figures are illustrative of the method.
See the difference the cut makes
Bring in a stone you already own. We will measure its light signature beside one of ours, on the same bench.