Product Description
Optical Science Meets Modern Design
Experience the dance of light on your décolletage. This 21-inch necklace features precision-cut Swarovski® AB crystals with laboratory-grade titanium coating (ISO 14456 certified), creating observable rainbow refraction in natural light. Engineered for the layered jewelry trend, its extended length creates effortless dimension.

Transparent Material Specifications
🔬 Verified Optical Performance
Swarovski® AB Elements: 32-layer titanium coating refracts measurable blue/violet/green spectra (spectrometer-tested)
21-inch Engineering: Reinforced snake chain withstands 1.2kg tension (test report available)
Regulatory-Compliant Plating: 3μm 18K gold plating over brass base (<0.2μg/cm²/week nickel release | EU REACH compliant)

⚙️ Safety-First Construction
Triple-lock clasp: Primary clasp + safety chain + silicone shock absorber (2,000-cycle tested)
Lead-free solder: Prop 65 compliant
Independent certification: RoHS heavy metal test included with shipment

Style Scenarios (Evidence-Based)
"Designed for contemporary aesthetics:
→ Layered Styling: Creates focal point when paired with delicate chains (see styling guide)
→ Special Occasions: 21" drop complements deep-V necklines in formalwear
→ STEM-Inspired Gifting: Includes educational light prism card"

Technical Specifications
▸ Length: 21" (53.3cm) + 2" (5cm) extender
▸ Crystals: 31 Swarovski® AB elements | 3.5mm (±0.1mm tolerance)
▸ Chain: 1.2mm width | 18.2g total weight
▸ Packaging: Recycled paper box (gift wrap upgrade available)

Care Instructions
"Preserve optical clarity:
Avoid contact with cosmetics/chemicals
Clean with microfiber cloth
Store separately in included pouch
Remove before swimming/sleeping"