















[On sale July 12th at 10 PM] Madagascar Grandidierite 0.179ct Loose Gemstone with Certificate
Grandidierite is captivating with its unique blend of blue and green. There's also the joy of collecting them, as there is a wide range of colors, from those leaning more towards blue to those leaning more towards green. Although it's a relatively new stone, with gem-quality specimens only discovered in 2014, it has been selected as one of the "Top 10 Rarest Gems in the World."
This particular grandidierite from Madagascar boasts excellent transparency and a rich color. It comes with a鑑別書 (identification report).
・Type: Loose Stone (Natural Stone)
・Stone Name: Grandidierite
・Weight: 0.179ct
・Size: 4.0×3.2㎜
・Shape: Oval Cut
・Scratches/Chips: S
・Inclusions: S-A+
・Remarks: ---
・Accessories: Identification Report (JTL (Jewel Trading Laboratory)), Loose Case (If it doesn't fit, a clear zip-lock case will be provided)
▷Jewelry Customization Available
If you would like to customize your jewelry, please order it along with your preferred setting from the link below.
・【Choose Your Stone】Simple Order
・【Choose Your Stone】Semi-Order
If you would like an image of the stone on a setting, wish to discuss a custom order, or have any other questions, please feel free to contact us here.
Please note that rough stones cannot be processed. Also, some stones may not be suitable for customization.
※ We strive to ensure that the photos accurately represent the actual color of the product, but due to lighting conditions during photography and your monitor settings, there may be slight differences from the actual product. Additionally, some photos may have been taken using a penlight.
※ For products with UV fluorescence photos, a black light with a wavelength of 365nm is used for shooting. If you use a light with a different wavelength (e.g., around 395nm), the fluorescence may appear weak or be difficult to confirm. The black light we use is here.
※ For information on scratches/chips, treatments, and inclusions, please see here.
※ For other frequently asked questions, please see here.
karatz_item_id: 12563741
Choose options



![[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_fb9c3ca5-bb7a-4e26-971a-aa8eea6aac50.png?v=1785474947&width=3000)
![[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_6f3840e9-55d7-4900-ae4a-1603715453ac.png?v=1785481375&width=4000)
![[On Sale July 31st at 10 PM] "Limited to 20 Stones" Indigo Tourmaline Gacha with 5 Gem-Quality Stones + 1 Loose Stone (Certificate Included) (Multiple Purchase Discount Available)](http://store.karatz.jp/cdn/shop/files/80.png?v=1785152112&width=4000)
![[On sale July 7th at 10 PM] Jeremejevite Gacha (Limited to 10 stones) (Multi-purchase discount available)](http://store.karatz.jp/cdn/shop/files/73.png?v=1785110938&width=2268)
![[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_d807bfc6-59b6-481d-8d99-558a08a82376.png?v=1785464501&width=3000)
![[Sale starts July 7 at 10 PM] Limited to 14 Stones: Special Cut Gacha [Bulk Purchase Discount Available]](http://store.karatz.jp/cdn/shop/files/75.png?v=1785113154&width=2268)
![[On sale August 1 at 10 PM] Limited 10 Stones: Sapphire Gacha (including unheated cornflower blue sapphires, normally ¥69,800), with a bonus Sange sapphire. Multiple purchase discount available.](http://store.karatz.jp/cdn/shop/files/79.png?v=1785150857&width=4000)
![[7/ 22:00 Release] Limited to 15 Stones: Parasitic Peridot Gacha (Multiple Purchase Discount Available)](http://store.karatz.jp/cdn/shop/files/collage213.png?v=1785476632&width=4000)
![[Sale on July 7th at 10 PM] Limited to 12 stones! Blue Gem Gacha [Multiple Purchase Discount Available]](http://store.karatz.jp/cdn/shop/files/77_ede25372-0894-4b5d-ac9c-3b1ca2b56c4f.png?v=1785146266&width=4000)













![[Jeweler's Tools] 3 black light loose pieces (ruby, red spinel rough, oil-in-quartz) with rechargeable battery](http://store.karatz.jp/cdn/shop/files/collage_c90ad5e1-b47a-49f9-b7d7-d75e04cd883a.png?v=1724920180&width=2000)

![[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)
