Largest cut hauyne/hauynite
- Who
- Filip Mlynarcik
- What
- 28.63 carat(s)
- Where
- United Arab Emirates (Dubai)
- When
- 18 June 2025
The largest cut hauyne weighs 28.63 carats (5.72 g), and was achieved by Filip Mlynarcik (UAE), in Dubai, United Arab Emirates, on 20 June 2025.
Filip attempted this as personal achievement.