Some designs don’t shout romance—they unlock it.The Love Key Charm Diamond blends a refined oval halo with a clean, open heart at its center. It’s a modern symbol with an old promise: one key, one story. The lines are gentle. The sparkle is deliberate. Nothing is wasted.

Built for jewelry manufacturers and professional designers, this Love Key Charm Diamond 3D model is engineered for production efficiency. Pavé spacing is consistent, wall thickness is calibrated for casting, and the modular key shaft supports customization—right down to the letter-shaped key tooth. It’s a sentimental concept, delivered with manufacturing discipline.

Dimensions & ProportionsTotal length: 46.09mm

Oval halo width: 20.60mm

Key head thickness: 2.84mm (slim profile for elegant wear)

Overall form: Elongated romantic key silhouette with oval halo + open heart

Wearing scale: Medium presence; gift-ready proportions for daily or statement wear

Design & StructureOval Halo with Open Heart Center

Continuous pavé track around the oval frame

Clean negative space heart for visual clarity

Slim walls optimized for casting and polishing

Segmented Cylindrical Key Shaft

Modular step sections for visual rhythm

Reinforced joints reduce finishing time

Smooth transitions for comfort and durability

Customizable Letter Key Tooth

Default “E” letter tooth (other letters customizable)

Adds personalization for couples or brand stories

Maintains structural integrity for setting

Gemstone SpecificationsTotal stones: 21 round diamonds

Stone size: 21 × 1.2mm round cut

Estimated main stone weight (1.2mm): ≈ 0.008 CT each

Total carat weight: 0.126 CT

Setting method: Pavé setting

Distribution:

Oval halo: continuous pavé layout

Heart center: open space for contrast and light

Included 3D Files

3DM

STL

Optimized topology for jewelry CAD, prototyping, casting, and stone setting.