What is teal sapphire?

Teal sapphire is natural corundum coloured by iron and titanium that sits at the intersection of blue and green - neither clearly blue nor clearly green. It scores 9 on the Mohs hardness scale and is almost always unheated, making it the leading non-traditional engagement ring stone of the current decade.

Is teal sapphire the same as Montana sapphire?

No. Montana sapphire is a geographic origin - sapphire mined in Montana USA. Teal sapphire describes a color position in blue-green corundum from any origin. Ceylon and Madagascar teal sapphires are different origins in a similar color family, typically available in larger sizes at more accessible prices than Montana origin stones.

Why is teal sapphire almost always unheated?

Heat treatment tends to push teal sapphire toward blue by eliminating the green component. Since the green is precisely what makes teal valuable, heating is commercially counterproductive. As a result, virtually all fine teal sapphires on the market are naturally unheated.

藍綠色藍寶石裸石

關於藍綠色藍寶石

藍綠色藍寶石是顏色介乎藍色與綠色之間的剛玉。有的以藍為主、帶綠調，有的以綠為主、帶藍調，在不同光源下觀感亦可能略有分別，因此每顆寶石都以實物相片及影片展示。顏色較藍的寶石請看藍色藍寶石，較綠的請看綠色藍寶石。

產品頁面列明的資料

本系列每顆寶石獨立上架，附該寶石本身的相片及影片，以及化驗報告所載的重量、尺寸、形狀、切割及顏色等資料。每件產品頁面均註明該寶石是否經過加熱；如化驗報告載有處理項目，我們按報告原文照錄。價值較高的寶石附美國寶石學院（GIA）報告，產品頁面列出報告編號；如報告由其他化驗所發出，頁面會註明化驗所名稱。

產地與採購

Crescent Gems 自2000年起在斯里蘭卡採購寶石，大部分由自設工場切割打磨。產品頁面所列產地，如來自GIA產地報告，即為化驗所的專家意見；如報告未載產地意見，頁面所列產地是我們自己的採購紀錄，並非化驗結論。

查詢與訂購

如需更多相片，或希望我們為某顆寶石拍攝影片，歡迎電郵至 crescentgems@gmail.com，我們以中文回覆。寶石由美國經 FedEx 或 UPS 付運，全程投保：每張訂單 US$499 或以下運費 US$60，超過 US$499 免運費；提供 14 天退款保證（美國以外地區的退貨運費由買家負責）。