A good design catches the eye.A smart design keeps it there.

This Gem Diamond Marquise Key Pendant Necklace 3D model is built on contrast—structure and softness, precision and color, control and expression. At its core is a compass-inspired framework, but what happens inside that circle is where the story begins.

A round center gemstone (4.1 mm ≈ 0.257 ct) anchors the composition. Around it, six marquise-cut diamonds (4.0 × 2.2 mm ≈ ~0.15 ct each, ~0.90 ct total estimated) radiate outward like petals—creating a layered floral effect with clear hierarchy and visual rhythm.

The spacing between each marquise stone is intentional. It gives the center room to breathe, and the entire piece a sense of balance that feels engineered, not accidental.

Design Specifications

Overall Height: 35.07 mm

Top Disc Diameter: 12.99 mm

Thickness: 7.19 mm

Total Stones: 7 (1 round + 6 marquise)

Center Stone: 4.1 mm (~0.257 ct)

Side Stones: 6 × 4.0 × 2.2 mm (~0.90 ct total est.)

Setting Style: Prong setting with radial structure

Design Structure: Compass frame + floral gemstone layout

File Formats: 3DM • STL

The modeling is deliberate. Clean symmetry reduces adjustment time. Defined stone seats simplify setting. The contrast between a bold center gem and structured marquise accents creates a design that reads instantly—even before it’s finished.

Because in jewelry, clarity isn’t just visual.It’s operational.