




















Montana Sapphire 0.262ct Loose (Bi-Color Sapphire)
Montana sapphire began when Dr. J.F. Kunz, then a vice president at Tiffany & Co., proved that a blue rough stone found in Yogo Valley in Montana was sapphire. There are several deposits, and the trends differ depending on the location, but overall it is characterized by high transparency and many fancy colors. A bicolor sapphire that allows you to enjoy yellow and colorless hues.
・Type: Loose (natural stone)
・Stone name: Montana sapphire (Montana sapphire)
・Weight: 0.262ct
・Size: 4.8×3.1mm
・Shape: Oval cut
・Scratch/chip: S
・Inclusion: S
・Note: Heating is being performed.
*Sapphires are generally heated gemstones.
・Accessories: Karatz quality guarantee, loose case (if it doesn't fit, clear case with zip)
▷For more information about Montana Sapphire
What is Montana sapphire? History, characteristics, values, etc.
▷Jewelry processing available If you would like jewelry processing, please place an order along with your desired frame from the link below.
・[Choose from stones] Simple order
・[Choose from stones] Semi-order
*If you would like a photo of a stone placed in a frame, would like to discuss a full order, or have any other questions or concerns, please feel free to contact us here .
*Rough stones are not available. There are also some stones that cannot be used.
*We try to make sure that the colors in the photos are the same as the real thing, but the colors may look slightly different from the real thing depending on the lighting at the time of shooting and the monitor environment you are using. In addition, some photos may be taken using penlights.
*Click here for information on scratches, chips, treatments, and inclusions.
*For other frequently asked questions, please click here .
karatz_item_id: 12549685
・Type: Loose (natural stone)
・Stone name: Montana sapphire (Montana sapphire)
・Weight: 0.262ct
・Size: 4.8×3.1mm
・Shape: Oval cut
・Scratch/chip: S
・Inclusion: S
・Note: Heating is being performed.
*Sapphires are generally heated gemstones.
・Accessories: Karatz quality guarantee, loose case (if it doesn't fit, clear case with zip)
▷For more information about Montana Sapphire
What is Montana sapphire? History, characteristics, values, etc.
▷Jewelry processing available If you would like jewelry processing, please place an order along with your desired frame from the link below.
・[Choose from stones] Simple order
・[Choose from stones] Semi-order
*If you would like a photo of a stone placed in a frame, would like to discuss a full order, or have any other questions or concerns, please feel free to contact us here .
*Rough stones are not available. There are also some stones that cannot be used.
*We try to make sure that the colors in the photos are the same as the real thing, but the colors may look slightly different from the real thing depending on the lighting at the time of shooting and the monitor environment you are using. In addition, some photos may be taken using penlights.
*Click here for information on scratches, chips, treatments, and inclusions.
*For other frequently asked questions, please click here .
karatz_item_id: 12549685
Choose options



![[On sale 10/31 at 22:00] 《Limited to 15 stones》 Top-quality benitoite (2mm, round cut) loose stone 《Multiple purchase discount available》](http://store.karatz.jp/cdn/shop/files/PC080074_50a7da98-e5da-4a97-bdb2-a97224e584da.jpg?v=1715001409&width=3569)
![[Available 10/31 at 10 PM] 《Limited to 10 stones》 Zimbabwe Euclase rough (regular price ¥49,800), Brazilian Paraiba Tourmaline (CuO: 1.8%, MnO: 0.1%), or Triplite rough gacha (includes 1 Hackmanite rough) 《Multi-buy discount available》](http://store.karatz.jp/cdn/shop/files/collage_a65569e2-bbd3-4500-aad7-326bfdef207e.png?v=1791680733&width=2000)
![[On sale 10/31 at 10 PM] 《Limited to 5 stones》 1 Sri Lankan Uva Moonstone Loose Stone (New Lumina Star Cut, by Mr. Sanje, avg. 0.5ct) 《Multi-buy discount available》](http://store.karatz.jp/cdn/shop/files/collage_055269e3-e881-48d7-8e6b-be69a2c72be1.png?v=1791681460&width=2000)

![[On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available"](http://store.karatz.jp/cdn/shop/files/collage_ff6f1f8b-1da1-4ee4-a56f-084bc3e530f4.png?v=1792306445&width=2000)


![[Deadline: Sun, Oct 4, 10:00 AM: Lottery Sale ②_04] Myanmar Musgravite 0.080ct Loose Stone GIT](http://store.karatz.jp/cdn/shop/files/P9250021_0ea69899-a52b-4bc6-8594-f72ca24be307.jpg?v=1793118698&width=2635)
















![[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)


![[Jeweler's Tools] Color change penlight loose set](http://store.karatz.jp/cdn/shop/files/P1010673_2976de1d-08ce-4d92-94af-524da4485c99.jpg?v=1725605083&width=4000)