Sometimes the most powerful designs are the ones that let light pass through.
The Open Heart Diamond Key Pendant Necklace 3D model is built around that idea. Instead of covering every surface with stones, this pendant celebrates the balance between brilliance and breathing space.
Inspired by Art Nouveau flowing scrollwork and Victorian romantic symbolism, the design transforms a classic key pendant into something more poetic. A heart that opens. A key that suggests possibility. A structure that reveals craftsmanship from every angle.
For jewelry manufacturers and designers, however, the beauty goes deeper than aesthetics.
Because complex pavé jewelry like this normally requires painstaking CAD modeling—aligning more than a hundred stones, sculpting symmetrical scrollwork, and maintaining precise metal thickness for casting.
This model removes those obstacles.
The Open Heart Diamond Key Pendant Necklace arrives fully engineered and ready for production workflows.
Less modeling time.More creative freedom.
Design StructureDiamond Pavé BailThe pendant begins with a compact oval bail designed for elegant chain integration.
Smooth oval silhouette
Fully pavé-set with round brilliant diamonds
Proportionally balanced with the heart key head
This subtle introduction ensures the pendant flows naturally from chain to centerpiece.
Open Heart Key Head — Signature Design ElementAt the center of the Open Heart Diamond Key Pendant Necklace sits a large open heart frame that defines the piece.
The structure unfolds in three distinct layers.
Outer Heart Frame
Single row of pavé round brilliant diamonds following the heart contour
Clean and defined outline that frames the entire pendant
Openwork Scroll Interior
The interior is the true highlight.
Instead of dense stone coverage, the design features symmetrical S-shaped scrollwork inspired by Art Nouveau botanical forms.
Twin scrolls rise from the center and curve outward
Ends curl like delicate fern leaves
Scroll surfaces are pavé-set with round diamonds
Large open areas allow light to pass through the pendant, creating depth and transparency when worn.
Central Focal Diamond
At the lowest point of the heart frame sits a single round brilliant diamond, anchoring the entire design visually.
Sculpted Connector ShouldersWhere the heart head meets the key shaft, elegant wing-shaped metal arms extend outward like delicate crescents.
Surfaces pavé-set with round diamonds
Smooth sculptural transition between head and shaft
Maintains visual fluidity with no hard separation line
Diamond Pavé Key ShaftThe shaft of the Open Heart Diamond Key Pendant Necklace adopts a refined spindle-shaped cylindrical form, wider near the top and tapering toward the base.
Key features include:
Four vertical rows of pavé round diamonds
Mid-section metal ring band creating visual segmentation
Continuous diamond coverage toward the key tooth
This arrangement produces a consistent rhythm of brilliance from top to bottom.
Decorative Key ToothThe pendant finishes with a classic stepped key tooth design, reminiscent of traditional vintage keys.
Details include:
Round brilliant diamond accents
Clean geometric edges
Small curved hook at the end for an elegant finishing touch
Pendant DimensionsTotal Height: 49.11 mm
Width: 19.26 mm
Thickness: 5.84 mm
These proportions create a statement-size luxury pendant suitable for high-end jewelry collections.
Diamond SpecificationsAll stones are Round Brilliant Diamonds, carefully distributed to maintain visual density and balance.
Size Quantity0.95 mm 451.00 mm 151.10 mm 1031.15 mm 8Total Stones: 171 diamondsTotal Diamond Weight: 0.758 ct
Average estimated stone weight ≈ 0.004–0.005 ct per diamond
The four-size stone layout ensures natural brilliance transitions across the Open Heart Diamond Key Pendant Necklace.
Included 3D Model FilesYour purchase includes production-ready CAD formats:
3DM – Rhino editable model
STL – 3D printing / casting preparation
These files integrate seamlessly with standard jewelry manufacturing workflows.
Designed for Jewelry MakersDesigning a pendant like the Open Heart Diamond Key Pendant Necklace from scratch involves:
Modeling complex scrollwork
Precisely aligning over 170 pavé diamonds
Ensuring casting-safe wall thickness
Maintaining symmetry across organic curves
That process can take hours—or even days.
This professional CAD model eliminates the repetitive work, allowing jewelers and designers to move directly into rendering, prototyping, or production.
Spend less time modeling.Spend more time creating jewelry that sells.
STL (Stereolithography, filesize: 9.13 MB), 3DM (Rhinoceros 3D, filesize: 5.51 MB)
