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We Made Quality Sapphire Crystal

Precision-engineered sapphire solutions for luxury watches, mobile devices, optics, and industrial applications.

Explore Products Learn About Us

OEM / ODM

Custom Solutions

10+

Years Experience

300+

Team Members

About JZ Sapphire

Jadezone Optical (HK) Ltd. was established in 2010 and operates a state-of-the-art manufacturing plant in Shenzhen, China. With over 10 years of specialized experience in sapphire crystal processing, we are a trusted partner for premium brands across Europe and the United States.

We focus on the manufacture and value-added processing of synthetic sapphire crystal. Our product range includes luxury watch glasses and accessories, smartphone cover glass, jewelry components, and specialized parts for medical instruments, optical communication, and LED applications.

3,000+ m²

Factory Area

ISO9001

Certified

8 Patents

Innovations

REACH & RoHS

Compliant

JZ Sapphire Factory

Our Advanced Factory

Light Transmittance Test

Light Transmittance Test

Ensuring optimal clarity across UV to mid-infrared wavelengths.

Hardness Test

Hardness Testing

Verifying 9 Mohs scale hardness for superior scratch resistance.

Quality Control

Quality Control

Multi-stage inspection for flawless surface finish and dimensions.

Size Test Projector

Precision Measurement

Using optical projectors for micron-level dimensional accuracy.

AR Coating

AR Coating

Anti-reflective coatings for enhanced optical performance.

Production Line

Automated Production

High-efficiency lines with advanced CNC and polishing systems.

Laser Marking

Laser Marking

Permanent, high-precision branding and identification.

Final Inspection

Final QC

Comprehensive validation before packaging and shipment.

Our Premium Products

Engineered for performance, durability, and optical clarity. Trusted by leading brands worldwide.

Sapphire Watch Glass

9 Mohs hardness, anti-reflective coating, scratch-proof, ultra-clear for luxury timepieces.

  • • 0.5–2.0mm thickness
  • • Custom shapes & sizes
  • • AR/AF coatings available

Smartphone Cover Glass

Ultra-thin, high-strength sapphire for premium mobile devices and wearables.

  • • 0.3–1.5mm thickness
  • • High transmittance
  • • OEM/ODM supported

Sapphire Jewelry

Synthetic sapphire gems and components for high-end jewelry applications.

  • • Various colors & cuts
  • • Polished finish
  • • Custom designs

Optical Windows

High-transparency sapphire windows for UV to mid-IR applications.

  • • Broad spectrum
  • • Chemically resistant
  • • Custom coatings

Camera Lens Covers

Scratch-resistant sapphire lenses for smartphones, drones, and security cameras.

  • • High durability
  • • Optical clarity
  • • AR coating options

Medical Instrument Windows

Sterilizable, chemically inert sapphire components for surgical and diagnostic tools.

  • • Biocompatible
  • • High temp resistance
  • • Precision machining

LED Substrates

High-quality sapphire wafers for LED and semiconductor manufacturing.

  • • 2"–6" diameter
  • • C-plane orientation
  • • Polished surfaces

Custom Sapphire Components

ODM/OEM solutions for specialized industrial, aerospace, and defense applications.

  • • Full customization
  • • Rapid prototyping
  • • Volume production

Why Choose Sapphire Crystal?

Extreme Hardness (9 Mohs)

Second only to diamond, sapphire resists scratches from everyday materials, maintaining clarity and beauty over time.

Superior Optical Clarity

Transmits wavelengths from UV to mid-infrared, ideal for optical, medical, and scientific applications.

Chemical & Thermal Resistance

Withstands harsh environments, acids, and high temperatures without degradation.

Thinner & Stronger

Provides superior strength at reduced thickness compared to standard glass, ideal for sleek device designs.

Wear & Scratch Resistant

Maintains pristine appearance even after years of use, reducing maintenance and replacement costs.

Global Quality Standards

ISO9001 certified, REACH and RoHS compliant — trusted by leading international brands.

Latest Insights

Aug 16, 2022

Advantages & Disadvantages of Sapphire Crystal

Sapphire provides an amazing compromise between durability, transparency, and cost. With a hardness of 9 on the Mohs scale, it's 3x harder than mineral glass. However, it is brittle and more expensive — ideal for premium applications where scratch resistance is critical.

Aug 05, 2022

What Is Sapphire Crystal Watch Glass?

Synthetic sapphire is made by crystallizing pure aluminum oxide at high temperatures. Used in luxury watches, phones, medical devices, and optics due to its extreme hardness, clarity, and chemical resistance.

Get in Touch

Ready to discuss your sapphire crystal needs? Connect with our engineering and sales team.

Visit Official Website

For inquiries, please visit the official site to contact Jadezone Optical directly.

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