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Unheated Saphires yellow purple NATURAL COLOR 0.96 ct Ilakaka Mine Madagascar
About the Item
..untreated NATURAL COLOR sapphires...always a rarity, most sapphires are heated, from the Ilakaka mine Madagascar yellow purple NATURAL COLOR total approx. 0.96 ct in the size 6 x 4.1 x 2.4 mm, excellent cut, unmounted, can be worked with pleasure according to customer's wishes (EXTRA CHARGE).See last picture, variants of colors (not in price included)
The Ilakaka-Sakaraha deposit is one of the world’s largest alluvial sapphire deposit, covering an area of approximately 4,000 km2. Starting from the Ilakaka river basin and then going southwest for roughly 120 kilometers, onto the Benahy and Taheza rivers basins. The alluvial sapphire-rich layer is located under a sandy ground overburden, which varies considerably in depth, from a meter up to 60 meters in thickness. The depth of the gem bearing layer will determine the type of mining technique used to retrieve the sapphires:
If the depth is less than 10-15 meters, an open-cast quarry technique is often employed. These quarries can reach impressive dimensions. The “Banque Suisse” mine near Ilakaka is probably the most famous of these quarries; exceeding 20 meters in depth and having been entirely dug out manually, using the “angady”, a Malagasy light agricultural shovel.
When the depth exceeds 15 meters, the preferred method is to dig narrow vertical pits, locally called “vovo”, down to the alluvial layer and then dig horizontal tunnels to recover the gravels. In the Taheza area, these mining pits can reach 50 meters in depth
- Stone:
- Stone Cut:
- Weight:1 ct
- Dimensions:Width: 0.16 in (4 mm)Depth: 0.08 in (2 mm)Length: 0.24 in (6 mm)
- Style:
- Period:
- Date of Manufacture:2023
- Condition:
- Seller Location:Viena, AT
- Reference Number:1stDibs: LU2976220265142
This gemstone can be customized into an extraordinary work of art under your direction. Collaborate with the jeweler to create a one-of-a-kind piece. Simply complete the form provided, and the seller will contact you.
About the Seller
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Established in 2009
1stDibs seller since 2022
32 sales on 1stDibs
Typical response time: 4 hours
- ShippingRetrieving quote...Ships From: Viena, Austria
- Return PolicyA return for this item may be initiated within 3 days of delivery. Please be advised, certain types of customizations are not eligible for returns.
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