The collection

Tanzanite

Tanzanite appeared in our earlier gemstone collection and remains a specialist enquiry category. Under our current natural-only, untreated product policy, an offer depends on finding suitable material with supporting information. Historical photographs show the earlier collection and are not a claim that a particular stone is untreated or currently available.

Selected for your requirements

Choose by the individual stone rather than a general variety name. Current photographs, video, dimensions, weight and any laboratory report help make the selection concrete. Mine or country-of-origin claims are made only when supported by appropriate records for the specific stone.

Natural and untreated only

We do not offer treated products. Ask us to confirm the available treatment information for any proposed gemstone. A gemstone being natural does not by itself mean it is untreated, and an earlier catalogue image is not a laboratory identification.

At a glance
Selection detailsNatural origin, treatment information, dimensions and suitability for the setting
FormatsLoose stones, pairs, calibrated selections and custom jewellery
PolicyNatural and untreated products only
Availability and priceConfirmed on enquiry

Continue exploring

Alexandrite collection example

Alexandrite

Colour-change character for individual stones and jewellery.

Price on Request
Ruby collection example

Ruby

Red gemstones for centres, accents and matching selections.

Price on Request
Sapphire collection example

Sapphire

Blue, pink, yellow and other natural sapphire colour enquiries.

Price on Request

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Speak with us about a diamond, a bespoke creation or a trade enquiry.

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From the collection
Collection photograph