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The inclusions within a diamond hold traces of a place beyond human reach — the deepest layers of the earth, where it was shaped by heat, pressure, and geological time.

Any element that interrupts the diamond’s crystalline clarity is known as an inclusion. In the world of high jewelry, these are often regarded as flaws, as imperfections. However, to me they are a beautiful living biography, telling the story of their millions of years of existence.

Diamonds were formed over vast stretches of time in the earth’s upper mantle, at depths of 150 to 200 kilometers, under temperatures exceeding 1300 °C and extreme pressure. Under these conditions, carbon crystallized into a compact cubic structure, giving rise to the hardest mineral on the Mohs scale.

Later on, they were carried to the surface through volcanic eruptions, forming deposits known as kimberlite pipes.

Within this once-molten material, precious diamonds rest as if naturally set.

15,6 mm (Diameter) / 49 mm (Circumference) – Size 9

15,9 mm (Diameter) / 50 mm (Circumference) – Size 10

16,2 mm (Diameter) / 51 mm (Circumference) – Size 11

16,5 mm (Diameter) / 52 mm (Circumference) – Size12

16,8 mm (Diameter) / 53 mm (Circumference) – Size 13

17,1 mm (Diameter) / 54 mm (Circumference) – Size 14

17,5 mm (Diameter) / 55 mm (Circumference) – Size 15

17,8 mm (Diameter) / 56 mm (Circumference) – Size 16

18,1mm (Diameter) / 57 mm (Circumference) – Size 17

18,4 mm (Diameter) / 58mm (Circumference) – Size 18

18,7mm (Diameter) / 59 mm (Circumference) – Size 19

19,1 mm (Diameter) / 60 mm (Circumference) – Size 20

19,4 mm (Diameter) / 61 mm (Circumference) – Size 21

19,7 mm (Diameter) / 62 mm (Circumference) – Size 22

20 mm (Diameter) / 63 mm (Circumference) – Size 23

The professionals at Teresa Estapé are here to assist you with any inquiries you may have.

We invite you to schedule a private appointment at her atelier in Barcelona to explore the pieces and receive personalised advice from our specialists.

Our team is also available for online appointments. Please contact us to arrange a call or to receive assistance via WhatsApp.

Piece available for immediate shipping

• National shipping: 8 € (24 h)
• Balearics: 15 € (24 h)
• European Union: 25 € (3-4 days)
• Other countries: Consult price and deadline at info@teresaestape.com

Use the code “ATELIER” at checkout to collect your piece from our atelier in Barcelona with no shipping charges.  

• Gold and diamonds are natural materials that withstand wear and oxidation. To clean them, use only water and mild soap, then dry them gently with a soft cloth.
• The diamond is resilient, yet it calls for care. Avoid sharp impacts on its edges to preserve their form.
• Be mindful when wearing delicate knits or scarves, as the diamond settings may catch or damage them.

The 18-karat gold in this piece is Fairmined—ethically sourced gold that does not harm the environment and respects the labor rights of the miners who work in its mines.

The Fairmined certification is awarded by ARM (Asociación por la Minería Responsable) in Latin America. Mines under this certification are audited annually and meet strict standards that ensure responsible extraction.

Together with the collective Origen – Gold For Future, Teresa Estapé champions jewelry that embraces environmentally respectful practices and social values, working with ethical materials sourced from responsible mining and fair trade circuits.