Bonas Group markets the exciting and unique gemstone Sugilite, a beautiful purple mineral denoting wealth, prosperity and healing.

Our Sugilite rough product comes from the prestigious Wessels and Nchwaning mines in South Africa, which hosts the only significant deposit of gem quality Sugilite, situated deep in the Kalahari Manganese Fields.


Sugilite was first discovered in 1944 South-West Japan by Ken-ichi Sugi, and is classified as a rare mineral with only a few known sources around the world.

The colour is mostly purple with sometimes hints of pink and blue with intrusions that vary from brownish to white. Our rich purple Wessels variant is superior in volume and quality to any other source, and although various names have been given to it over time, the distinctive Sugilite became synonymous with the Wessels mine.

Sugilite has been informally mined at Wessels Mine since being found in the late 1970’s, but it was “discovered” by a visiting geologist who saw potential value of this rare mineral in jewellery and ornamentation.

SUGILITE sales are conducted by Bonas Hong Kong via an online highest bid tender.


Bonas Special Tenders


Braúna mine

Antwerp viewings:

- 5 - 18 November 2019 (19 Nov 1pm CET)


Antwerp viewings:

Lucapa Diamond Company: Mothae

Antwerp viewings:

- 30 September - 4 October 2019 (7 October 3pm CET)

- 9 - 13 December 2019 (16 December 3pm CET)

Lucara Diamond Corp : Karowe mine

Botswana viewings only:

- 2 - 12 December 2019 (12 Dec 4pm CET)

Mountain Province: Gahcho Kué mine

Antwerp viewings:

- 16 - 26 September 2019 (27 Sep 3pm CET)

- 4 - 15 November 2019 (15 Nov 3pm CET)

- 2 - 12 December 2019 (13 Dec 3pm CET)

Namakwa Diamonds: Kao mine

Antwerp viewings:

- 17 - 27 September 2019 (30 Sept 3pm CET)

- 25 November - 5 December 2019 (6 Dec 3pm CET)

Stornoway Diamonds: Renard mine

Antwerp viewings:

- 3 - 16 October 2019 (17 Oct 3pm CET)

- 18 - 28 November 2019 (29 Nov 3pm CET)

    * Subject to change


If you wish to schedule an appointment, please contact our Antwerp office at:
+32 (0)3 233 70 80
diamondbrokers bonasgroup com


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