3d printable ring

A sleek metallic 3D-printable ring with an inner diameter of 18 mm (for a sporty male, 15–16 years old). The ring has a clean circular top with a raised bold “M” logo — no symbols around it. The band is smooth and even in thickness all around. Around half of the outer band, the engraving reads “Mellstroy Game”. On both sides of the band, there are small, evenly spaced casino-themed engravings — dice, hearts, spades, clubs, clovers, sevens, and stars — slightly smaller and simple enough for 3D printing. The surface should be polished dark metal with subtle purple-gold reflections and clean geometry suitable for high-quality 3D printing.