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$39.00 USD
價格

Grandidierite, 3.15ct, emerald cut extraordinary gem from Madagascar!

619
2

存貨單位
Dip3
尺寸(毫米)
11.000 x 8.500 x 3.900mm
重量 (cts)
3.150
Treatment
No Treatment
Shape
Emerald
類型
Faceted
Clarity
SI
顏色

Grandidierite is a mineral that was first discovered in 1902 in southern Madagascar. The mineral was named in honor of French explorer Alfred Grandidier (1836–1912) who studied the natural history of Madagascar.

A rather rare mineral, blue-green grandidierite is seldom seen in gem or jewelry collections. Translucent material is sometimes cut into cabochons. Faceted pieces are rare. As cabochons, translucent grandidierite can range from 1 to 10 carats and up to about one inch in size. Most material is generally opaque.[citation needed]

Since its discovery in 1902, most grandidierite used as a gem has been translucent. Recent discoveries of transparent material in Sri Lanka (around 2000) and a new deposit in Madagascar (2014) have resulted in faceted gemstones.

Grandidierites appear bluer in color the more iron (Fe) they contain. A recently discovered gemstone, blue ominelite is the Fe-analogue (Fe, Mg) to grandidierite (Mg, Fe).

Grandidierites display strong trichroic pleochroism. That means they can show three different colors depending on the viewing angle: dark blue-green, colorless (sometimes a very light yellow), or dark green.

While trichroism can usually help distinguish grandidierites from other gems, lazulites can occur with blue-green colors and show colorless/blue/dark blue pleochroism. They also appear cabbed and, more rarely, faceted. Nevertheless, lazulites have somewhat higher refractive indices and specific gravity. Grandidierites also have greater hardness.


Shipping: For special requests such as express delivery please contact me. For lost stones the seller is not liable, therefore an additional insurance is recommended. Right of return within two weeks after receiving the shipment. Payment via PayPal, Credit Card, or Bank transfer is possible. For the shipping I generally use: Austrian Post or FedEx. Unfortunately from Austria only DHL "express" is possible.


Please pay your stones in between 48 hours or contact me. Otherwise I need to cancel the deal.

If there is anything you shouldn't be satisfied with please just let me now and we will find a way to solve every problem. My aim is to make you happy with beautiful stones of good quality, good communication is the easiest way to find a solution!



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FedEx $27.00 / :幾天天 $46.00 / :幾天天
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Registered Shipping $9.00 / :幾天天 $16.00 / :幾天天
:國家
Registered Shipping訂單折扣為$15.00 3或更多商品
世界其他地區
Registered Shipping訂單折扣為$15.00 3或更多商品
Standard Shipping - Untracked $5.00 / :幾天天 $13.00 / :幾天天
:國家
Standard Shipping - Untracked訂單折扣為$15.00 3或更多商品
世界其他地區
Standard Shipping - Untracked訂單折扣為$13.00 3或更多商品

stonehengejpd
stonehengejpd
Selling all kind of gems, great quality at affordable prices, based in the heart of Europe! In case you may have special wishes just let me know :-) If you shouldn´t be satisfied with an order please do not give a negative feedback just let me know and there is always a way to find a solution that everybody is happy!
:城市,國家
已驗證
:總反饋

  • andrewchi
    andrewchi
    積極的

    Received, thank you

  • davetcummings
    davetcummings
    積極的

    This gem arrived in a reasonable time, and it is absolutely spectacular. It looked exactly like the photos and the cut was just perfect. I will certainly do business with stonehengejpd in the future.

  • andrewchi
    andrewchi
    積極的

    Received, thank you

  • oneill
    oneill
    積極的

    Great stone . great seller

審計

Gemstone Sheriff計畫允許我們的會員要求對任何產品進行審核,該審核由獨立的Gemologist人員完成,該資格人員評估商品描述和圖片的準確性。

送貨細節

船運:
$16.00 21透過Standard Shipping - Tracked計算天數
發貨自:
Austria

付款方式

  • paypal
  • stripe
  • escrow
該賣家在Austria交易中加入了20.00%稅。

概述

列表類型 : Standard
產品編號 : 2443359
開始 : 9th December 2024 01:04 am PST
* 所有價格均以:貨幣為單位