Challenge 2021 Jewelry and Nature


For in the true nature of things, if we rightly consider, every green tree is far more glorious than if it were made of gold and silver.
Martin Luther


It’s not difficult to think that nature can inspire any artistic creation.

Beautiful in form and rich in content, it represents an unlimited universe of fauna, flora and landscape. From the most microscopic scale to the most universal context, it includes natural phenomena unable to tame, sources of life (and death) and essential resources. Colors, materials, textures. Shapes, sounds, movements. It generally excludes the human creation and the built environment, but nowadays, it may be difficult to know a corner of the planet that has not been affected by humankind in any way.

Even though it is something that exists long before and beyond us, its conservation is constantly being menaced by human growth and technological innovation, in an ironic struggle in which human beings seem to be able to destroy the very basis of their livelihood.

As usual, we don't want to restrict and we challenge jewelers to go further: why not explore the contrast between the natural and artificial world? Study the ramifications of Natural Sciences, ranging from Biology to Geology or Chemistry? Why not question the action of humankind and appeal to sustainability and ecological awareness? Reflect on the current situation and human vulnerability to natural causes greater than us?

A challenge that demands to a look inside, as well as to the world around us.



With the main objective to show the quality and diversity of contemporary jewelry, opening its doors to the general public, Tincal lab invites every year jewelers from around the world for a Challenge: the creation of up to 3 pieces with the maximum price of 100€ each, inspired by a theme.

From this Open Call launched in June results an international collective exhibition of unique characteristics, consisting of more than 100 exclusive jewelry pieces created by the about 50 jewelers selected by the jury, among the crescent number of more than 100 applications that have been received annually. The opening is at Tincal lab on November, on the date of Simultaneous Openings event in Miguel Bombarda quarter, in Porto, accompanied by the release of a catalog.

In each edition, since 2018, has been awarded the Selection of the Jury Award and two Selection of the Public Awards (voting in person and online), consisting of an exhibition at Tincal lab over the following year.


In 2021, the seventh edition of Tincal lab Challenge launches the theme: Jewelry and Nature.


The work submitted for consideration during the application need not be related to the theme.

Selection will be made by a jury based on the artist's background and portfolio and will be reduced to a maximum of 50 participants.

The pieces to integrate the event should be created only after the candidate knows that he has been selected.

Application is free. All candidates will be contacted after July 11th and selected candidates will have until July 18th to formalise the registration through the payment of the participation fee (30€).

Sending the application form implies the acceptance of the terms of participation described in the bottom of the Application Form (please, read carefully).



Application: until June 30th 2021

Selection: until July 11th 2021

Reception of pieces: until September 30th 2021

Exhibition: from November 6th to December 31st 2021

Period of sale in shop and online: until June 30th 2022

Return of pieces to the artists: from July 1st 2022



Ana Pina (Portugal) | representing Tincal lab

Graduated in architecture (FAUP, 2004), worked in this area for some years before discovering the world of jewelry. She’s been developing her personal brand since 2012, after a course at Engenho e Arte School. In 2015 she founded Tincal lab, a work, shop, exhibition and dynamization space dedicated to contemporary jewelry, in the center of Porto.

Marta Costa Reis (Portugal) | representing Jewelry

Started studying jewelry in 2004, while pursuing other professional activities. Dedicates herself fully to this work since 2014, after taking the Jewelry Course and the Advanced Course in Visual Arts at Ar.Co. Teaches Jewelry History at Ar.Co, writes about jewelry, curates exhibitions and exhibits regularly in Portugal and abroad. Board Member of Art Jewelry Forum since 2020.

Jacinto Rodrigues (Portugal) | representing Nature

Born in 1939, full professor of transdisciplinary vocation, holds a Degree in Philosophy and a PhD in Art History. Has developed a vast teaching career in the areas of History of Architecture, Urbanism and Urban Ecology, took part in numerous national and international conferences, was an exhibition commissioner and published several books, of which we highlight “The Solar Conspiracy of Father Himalaya”, biographical sketch of a pioneer of ecology.