Redleaf Sunflower Design 18K Gold Lab Grown Emerald Jewelry Sets
Excellent quality with 100% satisfaction guaranteed. We can accept Customization.
For any other shapes and colors, please contact us.
Main Stone: Lab Grown Emerald
Jewellery Set Package: Necklace, Earrings,Ring
Payement: PayPal,T/T,Western Union, MoneyGram
Shipment Term: DHL,FEDEX,TNT,UPS, EMS
Lead Time: 7 ~15 days
What are the methods of making Lab Grown Emerald
1. **Hydrothermal method**
- Simulates the environment in which the earth's crust was formed, grown in an autoclave.
- Closest to natural quality, 4-6 months growth cycle.
- Higher cost, about 70% of the high-end products in the market.
2. **Flux** method
- Fluxes such as lithium molybdate are used to accelerate crystallisation.
- Can produce large carat stones (>10ct)
- Flux inclusions may remain (certificate required).
How to identify Lab Grown Emerald
1.**Microscopic observation**:
- Natural: three-phase inclusions (gas/liquid/solid)
- Cultivated: Platinum flake (hydrothermal method), flux residue (Flux method)
2.**Ultraviolet fluorescence**:
- Natural: weak red fluorescence
- Cultivation: strong red fluorescence (chromogenic colours are purer)
3.**Infrared spectroscopy**: detection of moisture absorption peak differences