























Unheated Color Change Blue Sapphire 1.450ct Loose GIT
Sapphire is a well-known stone. This is the most orthodox blue sapphire. Sapphire has a hardness of 9, making it the second hardest gemstone after diamond, and is tough, stable, and easy to care for. This is a rare, unheated blue sapphire.
It comes with a certificate of identification issued by the GIT, an identification agency of the National Gem and Jewelry Institute of Thailand. This stone will change color, but since we did not request a color change test, the certificate only states that it is unheated.
Type: Loose (natural stone)
Stone name: Unheated blue sapphire
・Weight: 1.450ct
・Size: 7.5×6.1mm
・Shape: Oval cut
・Scratches/chips: S
Inclusions: A+
·remarks:---
・Accessories: Certificate of Authenticity (GIT), loose case (if it does not fit, a clear case with zip)
▷For more information about sapphire
Sapphire characteristics, types, characteristics by origin, counterfeits, value standards, etc.
▷We accept jewelry processing.If you would like to have your jewelry processed, please order along with the frame of your choice from the link below.
・[Select by stone] Simple order
・[Select by stone] Semi-custom
*If you would like an image of the stone in the frame, would like to discuss a full order, or have any other concerns or questions, please feel free to contact us here .
*Raw stones are not available. There are also some stones that cannot be handled.
*We try to make the colors in the photos as close as possible to the actual product, but they may look slightly different from the actual product depending on the lighting conditions at the time of shooting and the monitor environment you are using. Also, some photos may have been taken using a penlight.
*For information on scratches, chips, treatments, and inclusions, please click here .
*For other frequently asked questions, please click here .
karatz_item_id: 12554515
Choose options











![[Item 12564323] Burmese Red Spinel 0.188ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P9090218_ee69d258-0585-4caa-9353-ea5c12fac61f.jpg?v=1791380684&width=2543)
![[10/4, 10 PM Release] Brazilian Amethyst 8.984ct Loose Gemstone](http://store.karatz.jp/cdn/shop/files/PA071484_e0a076f0-9900-4718-8633-aa6968a7fdd1.jpg?v=1791333891&width=3548)
![[Posted on 22602705] [Colorful] K18WG Diamond 0.5ct Pendant Top (Necklace Top)](http://store.karatz.jp/cdn/shop/files/P8060423_d36ce0b8-482c-4635-b50f-e95a3f891029.jpg?v=1791204209&width=3172)
![[Item 22602811] [Coloriful] Pt900 Pink Sapphire 0.42ct Diamond 0.05ct Ring with Appraisal Report](http://store.karatz.jp/cdn/shop/files/P9290010_8d07daad-9c48-47b1-819e-7bd3041157ae.jpg?v=1791184198&width=4000)
![[Item 22602804][Colori] K18 0.211ct Diamond & 0.35ct Diamond Pendant (Necklace)](http://store.karatz.jp/cdn/shop/files/P9300701_42bc40f7-cd39-43dc-a9a8-37eca042fbbd.jpg?v=1791184065&width=4000)
![[Lottery Sale_12] [For Winners Only] [Ref: 32501798] Internally Flawless Diamond (H&C) 4.2mm/0.280ct Loose Stone (D, IF, 3Excellent H&C) GIA](http://store.karatz.jp/cdn/shop/files/collage_13108166-7420-4e8f-a9ce-36d5a19b5023.png?v=1791123979&width=2000)
![[Lottery Sale ②_202608_04] Unheated Kashmir Sapphire 0.710ct Loose Stone GIA](http://store.karatz.jp/cdn/shop/files/P7227023_4642404f-3f88-40d5-b30d-04cfeec27b64.jpg?v=1791123165&width=3278)



![[12563017 listed] Pink Sapphire 0.143ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P9035692_5c10157e-aa71-4093-8774-997e1947ef99.jpg?v=1791103289&width=2693)







![[Jeweler's tools] 4-piece set including loupe (10x magnification), tweezers, and 2 loose stones](http://store.karatz.jp/cdn/shop/files/P4130575.jpg?v=1776126091&width=4000)

