Some jewelry tells a story with silence.The Heart Key Pendant Diamond Necklace tells it with shape, light, and intention. A clean circular frame crowns the key, and within it, a diamond-set heart appears—an unmistakable symbol of opening the door to love. The silhouette is refined, vertical, and quietly expressive, designed to feel timeless without feeling old.

Built for jewelry manufacturers and professional designers, this Heart Key Pendant Diamond Necklace 3D model translates romance into production logic. The pavé and prong geometry are resolved for consistent stone seating, the wall thickness is calibrated for stable casting, and the transitions between head, shaft, and bail are engineered to reduce hand-finishing time while preserving elegance.

Dimensions & ProportionsTotal length: 37.88mm

Key head width: 11.46mm

Key head thickness (height): 3.93mm

Overall form: Slender vertical key silhouette

Key head: Circular halo frame with inner heart motif

Key shaft: Streamlined stem with decorative tooth at the end

Bail: Integrated top loop for smooth chain movement

Design LanguageRomantic Symbolism with Modern Restraint

Circular frame creates visual balance

Heart-shaped diamond layout anchors emotional meaning

Vertical composition elongates the pendant for daily wear appeal

Manufacturing-First Geometry

Optimized wall thickness for reliable casting

Clean transitions reduce polishing labor

Stone seats engineered for consistent pavé and prong setting

Diamond SpecificationsTotal stones: 16 round brilliant-cut diamonds

Single stone size: 1.0mm (≈ 0.005 CT each, approx.)

Total carat weight: 0.064 CT

Setting method: Pavé + prong setting

Stone layout: Diamonds arranged to form a heart motif inside the circular frame, ensuring balanced brilliance and visual clarity

Included 3D Files

3DM

STL

Production-ready formats for CAD editing, prototyping, casting, and stone setting.