5.82 carat natural Natural Paraíba Tourmaline - GW Certificate
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Magnificant 5.82 carat natural Natural Paraíba Tourmaline
View Video of the 5.82 carat Natural Sapphire
Natural Tourmaline
Weight: 5.82 carat
Shape: Pear
Comments: Heat
COlor: Green
L/W/D (mm) 13.65-10.01-7.22
L/W Ratio 1.36
Lab: GW Lab
Paraíba is a gem variety tourmaline containing copper (Cu) and manganese (Mn). The variety name is derived from the Brazilian locality Paraíba where this gemstone was first mined, however today it may come from a number of localities.
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Sapphire Treatments:
- Untreated: Natural sapphires that have not undergone any treatment.
- Heated: Sapphires that are heated to enhance their color and clarity. Heating is a common and accepted practice.
- Diffused: Sapphires treated with elements at high temperatures to improve color.
- Lab Grown: Sapphires created in a laboratory with similar properties to natural ones.
Ruby Treatments:
- Untreated: Natural rubies that have not undergone any treatment.
- Heated: Rubies that are heated to enhance their color and clarity.
- Glass Filled: Rubies treated with lead glass to fill fractures and improve appearance.
- Lab Grown: Rubies created in a laboratory with similar properties to natural ones.
Emerald Treatments:
- Untreated: Natural emeralds that have not undergone any treatment. Price Factor: Highest due to rarity and natural state.
- Oiled: Emeralds treated with oil to fill fractures and enhance their appearance.
- Lab Grown: Emeralds created in a laboratory with similar properties to natural ones.
- Hydrothermal Growth: Emeralds produced using a hydrothermal process that mimics natural formation conditions.