Rare stones from our family's mine in San Luis Potosí, Mexico. Shown privately.
Every Gemsational stone comes from our family's mine in San Luis Potosí. We know where each one was found, how it was cut, and everything done to it.
Named for the Russian tsars, who kept the finest warm-coloured topaz for their own family.
Each stone is cut to show its best colour face-up, and is filmed in daylight and warm light before it is offered.
Every stone comes with our reports of type, estimated value and origin. Treatment, if any, is always stated.
Colour sets the value. The closer to pink and red, the rarer the stone.
Classic cuts, matched pairs, graduated suites and bespoke cutting from our rough.
The signature Imperial shape.
Graceful, made for pendants.
Maximum brilliance.
Soft corners, deep colour.
Long, calm flashes of light.
Bold, ideal as side stones.
Polished dome, pure colour.
Cut to your design.
For private clients, jewellery houses and the trade.
Collector stones, chosen one at a time.
Matched in colour, calibrated to the millimetre.
Sorted by colour and clarity.
Graded parcels, priced per carat.
Prices on request. What sets the value →
Colour, cut, size, or simply the occasion.
A shortlist, filmed in daylight and warm light.
Type, estimated value and origin, before you commit.
Fully insured, signature on delivery.
Ask for the current selection.