Medusa Blue – Organic Titanium Hairpin
Medusa – Organic Titanium Hairpin
At night, the waters off Tenerife sometimes flicker with cold blue light — mauve stinger jellyfish, disturbed by a current or a passing hand, glow briefly before fading back into the dark. This hairpin takes that shape: two long tentacles trailing from a domed, textured bell, hand-hammered and repoussé into a surface as uneven as something still drifting. Hand-anodized into deep blue, it holds the same glow the sea gives off only after dark.
✓ Hypoallergenic — safe even for very sensitive skin (Medical Grade Titanium)
✓ Feather-light — 45% lighter than steel, comfortable for all-day wear
✓ Built for island life — sea-water and corrosion proof
✓ Hairpin hand-hammered and repoussé, hand-crafted in Tenerife in small batches
Technical Specifications
- Hairpin Weight: 2.8 g
- Size: 8.8 cm (L) x 3.5 cm (W) x 0.8 mm (Thickness) — approx. 3.46" x 1.38" x 0.03"
- Texture: Hand-hammered and repoussé, hand-anodized
- Material: Grade 1 Titanium
- Color: Blue
- Origin: Hand-crafted in Tenerife
Each piece is shaped, textured, and anodized entirely by hand — no two are exactly alike. Slight variations in color and surface texture are part of the process, not a flaw: they're proof it was made by hand, not a machine.
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A Pattern Borrowed From History
This shape is taken from an antique pattern book from the Art Nouveau and Vienna Secession era — a design movement fascinated by the ocean's curves, tentacles, and waves, much of it inspired by real jellyfish studied and drawn by naturalists of the time. Reimagined in titanium and colored in the deep blue of Canary waters, a century-old motif becomes something new again: unmistakably a creature from the sea.
The Story Behind Medusa
Warm currents around the Canary Islands occasionally carry blooms of Pelagia noctiluca — the mauve stinger — close to shore. Disturb the water around one at night and it answers with a flash of bioluminescence, a cold blue light with no visible source. This piece is named for that instant: something delicate, easy to miss, that lights up only when you get close enough to notice it.
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Shipping & All-Inclusive Price
Shipping & All-Inclusive Price
We offer free shipping to E.U. and UK with all taxes, duties, and import fees included.
The price you see is the final price - no surprises at delivery.
Each piece is carefully prepared and typically arrives within 7 days from shipment.
You’ll receive tracking details as soon as your order is on its way.
From our workshop in Tenerife to your door - simple and transparent.
14-Day Peace of Mind
14-Day Peace of Mind
If it’s not right, you have 14 days to return it.
No complicated forms. No uncomfortable questions.
The piece must be returned in its original condition, and we’ll process your refund promptly once received.
Buying online should feel safe, not risky.
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Born in the Canaries. Crafted for Life.
The Story Behind the Piece
The Story Behind the Piece
Each piece begins in our Tenerife studio overlooking the Atlantic. Through anodisation, light itself becomes color — creating blues, violets and subtle gradients directly on the titanium surface. Every texture is finished by hand, making each piece slightly unique.
The Titanium Advantage
The Titanium Advantage
Titanium is exceptionally light, hypoallergenic and highly resistant to corrosion. It contains no nickel, is comfortable for sensitive skin, and will not tarnish or react to sea water. A material trusted in aerospace and medical applications, chosen here for everyday wear.
Care & Maintenance
Care & Maintenance
Titanium requires very little care. To keep your piece looking its best, simply wash it occasionally with mild soap and warm water. Avoid abrasive cleaners and harsh chemicals. With normal wear, your jewellery is designed to last for many years.
Marcelina Nicz
Behind INKRU stands Marcelina Nicz — artist, interior architecture graduate of the Silesian University of Technology, and resident of Tenerife. Her work is shaped between the raw character of metal and the fleeting nature of light.
Her greatest inspiration comes from the ocean, its living forms, and the volcanic landscapes of the Canary Islands. INKRU pieces reflect organic shapes found in nature, the intense island light, and subtle references to the culture and architecture of the islands. She is particularly inspired by the work of César Manrique and his way of uniting art, nature, and architecture into one harmonious whole.
Beyond jewellery design, she is passionate about painting, analogue photography, glass, and 1970s design. Together with her husband, she creates the world of INKRU from their studio in Tenerife, accompanied — and occasionally distracted — by Kusy, the cat quietly observing the creative process. store.

