99.9% pure solid copper Diamond glass tumbler, studio product photo on a plain background.
Copper Diamond glass tumbler shown from a close-up angle highlighting its faceted diamond-cut design.
Copper Diamond glass tumbler presented in a styled product photo.
Marketing graphic for the copper Diamond glass tumbler highlighting its faceted 99.9% pure copper design.
Second marketing graphic for the copper Diamond glass tumbler showcasing its faceted design and pure copper finish.
★ ★ ★ ★ ★
4.8 / 5  ·  +773 Reviews
✔ More than 15,000 satisfied customers

Pure Solid Copper Glass – 99.9% | Diamond

The Diamond cup is crafted from solid pure copper, with its diamond pattern engraved by hand by artisans in Rajasthan. Every sip becomes a ritual, every piece a unique work of art.

  • Solid pure copper at 99.9% — no alloy, no coating
  • Hand-engraved diamond pattern — each diamond individually chiselled
  • Each piece is unique — no two engravings are identical, collector's edition
  • Certified compliant with European food safety standards
Certificate of Authenticity — 99.9% Pure Copper
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Yes, entirely. The Heritage cup is made from 99.9% solid pure copper, with no alloy, no plating and no coating. Each cup is shaped and hammered by hand by artisans in Rajasthan, India — the hammering creates this unique texture unlike any other. No machines, no moulds. It is genuine craftsmanship, passed down from generation to generation.
Fill the cup with fresh water in the evening and leave it to rest for at least 6 to 8 hours (ideally overnight). In the morning, drink it on an empty stomach before any coffee or food. This ancient Ayurvedic ritual — Tamra Jal — supports digestion, energy, skin radiance and overall wellbeing. Use only with still water, not acidic drinks.
Rinse with clean water after each use. Once a week, rub the inside with lemon juice + a pinch of salt, leave it for 1 minute, then rinse thoroughly. Never put it in the dishwasher and avoid abrasive sponges. The golden patina that naturally forms over time is completely normal — it is the sign of living, authentic copper.
Delivery takes between 10 and 15 business days. Each Heritage cup is handcrafted to order in India — your piece is made especially for you in the workshops of Rajasthan. This timeframe is inherent to our artisanal process and is part of the Heritage experience.

VERIFIED REVIEWS

They tried it
and they are delighted

★★★★★
4.8 / 5 · +773 Reviews
Lena
★★★★★

Lena D.

London, United Kingdom

A purchase I don’t regret!

I’ve been using it for three weeks. My digestion has improved, I feel less bloated and the water genuinely tastes different — smoother. I recommend it 100%.

✔ Verified purchase
Sophie
★★★★★

Sophie M.

Manchester, United Kingdom

Beautiful and genuinely effective

I love the natural, warm appearance of the copper. The quality is excellent and I’ve already noticed a difference in my morning energy. The morning ritual has become something I genuinely look forward to.

✔ Verified purchase
Luisa
★★★★★

Luisa B.

Sydney, Australia

The perfect gift for anyone who loves wellness

I bought it as a birthday gift for my sister and she absolutely loved it! The packaging is beautifully presented and the bottle looks even better in person. I immediately ordered a second one for myself.

✔ Verified purchase
Lukas
★★★★★

Lukas R.

Melbourne, Australia

It convinced me from the very first week

I exercise regularly and since using this bottle I’ve noticed better recovery. It was also important to me to stop drinking from plastic. An excellent product.

✔ Verified purchase
Felix
★★★★★

Felix L.

New York, USA

The quality speaks for itself

I’m naturally sceptical, but I decided to try it anyway. The copper feels substantial, solid and truly premium. After a month of daily use, my digestion has noticeably improved. I won’t be going back.

✔ Verified purchase
Markus
★★★★★

Markus C.

Los Angeles, USA

Zero plastic, 100% wellness

I wanted to eliminate plastic for good and Ashwell convinced me. Beyond the eco-friendly aspect, the benefits I notice feel real. I feel less tired and this winter I’ve felt more resilient.

✔ Verified purchase