ARH Sapphire Co., Ltd
                                                                                                           
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7 Years
Since 2019
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Hexagonal Crystal Ruby Sapphire Gems with Princess Cut - 9 Mohs Hardness, 2040℃ Melting Point for Anti-Corrosion Jewelry

Price Negotiable
Price: 10USD-50USD
MOQ: 100pcs
Delivery Time: According to quantity
Product Description
Product Overview
Hexagonal crystal ruby and sapphire gems featuring princess cut design with exceptional anti-corrosion properties. These lab-created sapphires in peach red color are ideal for ring applications and jewelry manufacturing.
Technical Specifications
Property Value
Chemical Formula Al2O3
Crystal System Hexagonal
Melting Temperature 2040℃
Density 3.98-4.1 g/cm³
Hardness 9 Moh's Scale (Hv≥1700 kg/mm²)
Refractive Index 1.769 (parallel and perpendicular to C-axis)
Thermal Expansion Parallel to C-axis: 6.7×10⁻⁶
Perpendicular to C-axis: 5.0×10⁻⁶
Electrical Resistance >10¹⁶ Ω/cm (25℃)
Cutting & Processing
Our princess cut sapphires are precision-engineered to maximize brilliance and color display. The cutting methodology is optimized for hexagonal crystal structure to enhance light reflection and fire color concentration.
Manufacturing Capabilities
  • Direct source manufacturer of color sapphire boule
  • Specialized sapphire processing for watch cases and precision components
  • In-house sapphire growth equipment using CZ and KY methods
  • Professional custom production based on client specifications
  • Advanced polishing and precision processing techniques
Product Images
Hexagonal crystal ruby and sapphire gem with princess cut - front view Hexagonal crystal ruby and sapphire gem with princess cut - side view
Quality Assurance
All sapphire gems undergo rigorous quality control to ensure consistent hardness of 9 Moh's scale, precise refractive index of 1.769, and superior anti-corrosion properties resistant to acids and alkalis at normal temperatures.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company ARH Sapphire Co., Ltd
Location Room 2-11,No.50 Yunhan Road,Chongqing China
Contact Person Florence Chen

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