Custom Al2O3 Lab-Created Sapphire Gems with Princess Cut for Rings - 9 Mohs Hardness, 2040°C Melting Point
Price:
10USD-50USD
MOQ:
100pcs
Delivery Time:
According to quantity
Product Description
Customized Al₂O₃ Ruby and Sapphire Gems
Peach Red Lab-Created Sapphires with Princess Cut
Premium lab-created sapphire gems featuring the elegant princess cut, ideal for ring applications and custom jewelry designs.
Material Properties
Sapphire (Al₂O₃) belongs to the corundum mineral group in the trigonal crystal system. All gem-grade corundum colors except red (ruby) are classified as sapphires.
| Property | Value |
|---|---|
| Chemical Formula | Al₂O₃ |
| Crystal System | Hexagonal |
| Melting Temperature | 2040°C |
| Density | 3.98-4.1 g/cm³ |
| Hardness | 9 Moh's Scale (Hv ≥ 1700 kg/mm²) |
| Refractive Index | 1.769 (parallel & perpendicular to C-axis) |
| IR Transmission | 85% |
| Electrical Resistance | >10¹⁶ Ω/cm (25°C) |
Cutting Excellence
Our princess cut gems are precision-engineered to maximize brilliance and color display while optimizing material utilization for custom ring applications.
Manufacturing Advantages
- Direct source manufacturer of color sapphire boule
- Proprietary sapphire growth equipment using CZ and KY methods
- Professional custom production from client drawings
- Precision sapphire processing and polishing expertise
- Experienced technical team and skilled workforce
Frequently Asked Questions
Are you a trading company or factory?
We are a professional sapphire products factory with integrated trading capabilities.
Can you do customized products?
Yes, we specialize in custom production and OEM work. CAD or 3D drawings are required.
Could you provide samples?
Yes, samples are available with charge. Sample fee is refunded on orders of 100+ pieces.
What's the delivery time?
Typically 5-8 weeks for 200 pieces of watch cases, depending on processing complexity.
How about payment and delivery?
T/T payment preferred. Delivery primarily via air carriers like DHL and FedEx.
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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