Buy Sapphire Untreated-Unheated Gems

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Sapphire Untreated-Unheated
Sapphire, with its hardness of 9 on Mohs hardness, is second only to diamond, which renders it one of the most valuable and wearable gemstones of all-time. Sapphire is a 'precious four' gem and offers superb brilliance and rich, vibrant colors. Although most sapphire is heated or enhanced in other ways to improve color, clarity and stability, unheated and completely untreated natural sapphire can still be found. Usually unheated sapphire gems are found only in small sizes, but occasionally, large, clean stones are uncovered too. Because unheated sapphire is such a rarity, they are indeed relatively expensive, particularly unheated top-color blue 'Ceylon' sapphire. Unheated, natural sapphire is mostly sourced from Africa, though Australia and parts of Asia are known to produce some fine materials too.

As of recent times, Madagascar and Tanzania are two of the most important sources for fine untreated, unheated sapphire, as is Thailand. Tanzanian sapphire is usually pink to violet in color (often violet-blue), and many of the specimens exhibit very noticeable color change properties. Color-change unheated sapphire can be very expensive and is highly sought-after by both jewelers and gem collectors. Fine quality unheated sapphire gems from Madagascar, as well as Australia, display silk inclusions, which are highly desirable. The silky appearance is cause by rutile inclusions and the presence of such silk is usually a good indicator that the gem has not been heated, since rutile inclusions melt at a much lower temperatures than those at which sapphire is heated. Sapphire is also the official birthstone for those born in the month of September.

Certified Customer Reviews

Overall Rating -> 10

My experiences with Gemselect have always been quite satisfactory. The items are accurately photographed, a detailed description and provenance provided and the compare feature helps customers select the best gem for their needs. I have often recommended this source and will continue to do so.

Posted By GemGirl in November, 2019

Source: Bizrate

Overall Rating -> 10

I ordered several specific items from Gemselect. Items are always packaged very carefully to protect the content. Gemselect always encloses a card of authenticity which documents the entire stone, its size, clarity, etc. All of the items are as they were described. I would highly recommend them to anyone who’s in the market for a gem.

Posted By Ron in November, 2019

Source: Bizrate

Overall Rating -> 9

I frequently check the GemSelect website for a variety of gems. I've been very satisfied with the selection and quality of the top rated gems. All of the purchases I've made have turned out beautiful pieces of jewelry.

Posted By Steve in November, 2019

Source: Bizrate

Overall Rating -> 10

Outstanding user interface. Clear images and videos. Easy filtering and searching of large inventory.

Posted By Dan in November, 2019

Source: Bizrate

Overall Rating -> 9

really good gem selection will becoming back

Posted By Jehuty in November, 2019

Source: Bizrate

Overall Rating -> 9

I enjoyed the purchase and all the choices. You have great online information about your company and guarantees.

Posted By Philipj in November, 2019

Source: Bizrate

Gemstone Information

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Buy Sapphire Untreated-Unheated Gems

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