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0.24 Crt Diamond Certified Untreated Faceted Gemstone
- SKU
- Dimensions (mm)
- 4.180 x 3.240 x 2.040mm
- Weight (cts)
- 0.240
- Certified Gemstones
- Yes
- Clarity
- I
- Treatment
- No Treatment
- Type
- Faceted
- Colours
-
Most natural diamonds have ages between 1 billion and 3.5 billion years. Most were formed at depths of 150 to 250 kilometers (93 to 155 mi) in the Earth’s mantle, although a few have come from as deep as 800 kilometers (500 mi). Under high pressure and temperature, carbon-containing fluids dissolved minerals and replaced them with diamonds. Much more recently (tens to hundreds of million years ago), they were carried to the surface in volcanic eruptions and deposited in igneous rocks known as kimberlites and lamproites.
Diamonds are extremely rare, with concentrations of at most parts per billion in source rock. Before the 20th century, most diamonds were found in alluvial deposits. Loose diamonds are also found along existing and ancient shorelines, where they tend to accumulate because of their size and density. Rarely, they have been found in glacial till(notably in Wisconsin and Indiana), but these deposits are not of commercial quality. These types of deposit were derived from localized igneous intrusions through weatheringand transport by wind or water.
Description:
Settle your No Reserve account within one week otherwise it will be relisted thanks
- SKU
- Dimensions (mm)
- 4.180 x 3.240 x 2.040 mm
- Weight (cts)
- 0.240
- Certified Gemstones
- Yes
- Clarity
- I
- Treatment
- No Treatment
- Type
- Faceted
- Colours
-
Most natural diamonds have ages between 1 billion and 3.5 billion years. Most were formed at depths of 150 to 250 kilometers (93 to 155 mi) in the Earth’s mantle, although a few have come from as deep as 800 kilometers (500 mi). Under high pressure and temperature, carbon-containing fluids dissolved minerals and replaced them with diamonds. Much more recently (tens to hundreds of million years ago), they were carried to the surface in volcanic eruptions and deposited in igneous rocks known as kimberlites and lamproites.
Diamonds are extremely rare, with concentrations of at most parts per billion in source rock. Before the 20th century, most diamonds were found in alluvial deposits. Loose diamonds are also found along existing and ancient shorelines, where they tend to accumulate because of their size and density. Rarely, they have been found in glacial till(notably in Wisconsin and Indiana), but these deposits are not of commercial quality. These types of deposit were derived from localized igneous intrusions through weatheringand transport by wind or water.
Description:
Settle your No Reserve account within one week otherwise it will be relisted thanks
Shipping provider | Shipping to Thailand | Shipping to rest of world |
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Standard Shipping - Tracked | $8.00 / 7 days | $8.00 / 21 days |
Rest of the world
Standard Shipping - Tracked is discounted to $15.00 on orders with 2 or more items
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FedEx | $15.00 / 3 days | $25.00 / 7 days |
Rest of the world
FedEx is discounted to $30.00 on orders with 2 or more items
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Registered Shipping | $8.00 / 7 days | $8.00 / 21 days |
Thailand
Registered Shipping is discounted to $20.00 on orders with 2 or more items
Rest of the world
Registered Shipping is discounted to $15.00 on orders with 2 or more items
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Positive
A very good service.
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Positive
Even more beautiful than expected!
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Positive
thanks!!
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