

















[Featured in 12563419] Mozambique Ruby 0.300ct Loose Stone
Ruby has long been cherished as a gemstone. It refers to red corundum. With a hardness of 9, second only to diamond, ruby is a durable and stable gemstone that is easy to handle. This is a rare ruby from Mozambique.
An appraisal certificate is included.
・Type: Loose stone (natural stone)
・Stone name: Mozambique Ruby
・Weight: 0.300ct
・Size: 4.6×3.7mm
・Shape: Oval cut
・Scratches/Chips: S
・Inclusions: S
・Remarks: Heated.
*Ruby is generally a gemstone that has been heat-treated.
・Accessories: Appraisal certificate (JTL (Jewel Trading Laboratory)), loose stone case (if it doesn't fit, a clear case with a zip)
▷Jewelry customization available
If you wish to customize your jewelry, please order your preferred setting along with the stone from the link below.
・【Choose your stone】Simple order
・【Choose your stone】Semi-custom order
*If you would like an image photo of the stone set in a frame, would like to discuss a full custom order, or have any other questions, please feel free to contact us here.
*Rough stones are not applicable. Also, some stones may not be supported.
※ We strive to ensure that the photos are the same color as the actual product, but due to the lighting conditions at the time of shooting, your monitor environment, etc., the actual product may look slightly different. Also, some photos may have been taken using a penlight.
※ For products with UV fluorescence photos, we use a 365nm wavelength black light. 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, treatment, and inclusions, please refer to here.
※ For other frequently asked questions, please refer to here.
karatz_item_id: 12563419
An appraisal certificate is included.
・Type: Loose stone (natural stone)
・Stone name: Mozambique Ruby
・Weight: 0.300ct
・Size: 4.6×3.7mm
・Shape: Oval cut
・Scratches/Chips: S
・Inclusions: S
・Remarks: Heated.
*Ruby is generally a gemstone that has been heat-treated.
・Accessories: Appraisal certificate (JTL (Jewel Trading Laboratory)), loose stone case (if it doesn't fit, a clear case with a zip)
▷Jewelry customization available
If you wish to customize your jewelry, please order your preferred setting along with the stone from the link below.
・【Choose your stone】Simple order
・【Choose your stone】Semi-custom order
*If you would like an image photo of the stone set in a frame, would like to discuss a full custom order, or have any other questions, please feel free to contact us here.
*Rough stones are not applicable. Also, some stones may not be supported.
※ We strive to ensure that the photos are the same color as the actual product, but due to the lighting conditions at the time of shooting, your monitor environment, etc., the actual product may look slightly different. Also, some photos may have been taken using a penlight.
※ For products with UV fluorescence photos, we use a 365nm wavelength black light. 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, treatment, and inclusions, please refer to here.
※ For other frequently asked questions, please refer to here.
karatz_item_id: 12563419
Choose options


















[Featured in 12563419] Mozambique Ruby 0.300ct Loose Stone
Sale price¥29,800
Regular price



![[Restock on June 27th at 10 PM] Authentic Gemstone Encyclopedia 3D Stickers Vol. 1: The Big Five Gems](http://store.karatz.jp/cdn/shop/files/IMG_3658.jpg?v=1781061036&width=3384)
![[Sales start: July 3, 10 PM JST] [Purchased in Hong Kong - Limited 8 stones] All stones come with a gemological certificate - Afghanistan Green Hauyne 1 stone loose gemstone [Bulk purchase discount available]](http://store.karatz.jp/cdn/shop/files/collage_b5c226ed-0d3a-47fc-886d-8a1b5cfbbab5.png?v=1782718065&width=3000)
![[Sales start July 3rd, 10 PM JST] "Hong Kong Sourced - Limited 12 Stones" Pakistan Blue Tint Axinite Gacha - 1 Loose Stone (Multiple Purchase Discount Available)](http://store.karatz.jp/cdn/shop/files/collage_79ae67ca-03e1-49d0-b9e4-b94702991d82.png?v=1782883666&width=3000)
![[On Sale June 6th at 10 PM JST] "Limited 13 Stones" Fluorite Gacha including flawed Koshu cut gemstones "Bulk Purchase Discount Available"](http://store.karatz.jp/cdn/shop/files/50_28755117-0a9d-4247-82f9-d24573a88140.png?v=1782350508&width=2268)
![[6/ 10 PM JST Release] 《Limited to 11 Stones》Bicolor Gemstone Gacha featuring Paraiba Tourmaline and Euclase 《Bulk Purchase Discount Available》](http://store.karatz.jp/cdn/shop/files/51_69f45db0-6569-4905-b7e3-c9430e518415.png?v=1782351935&width=2268)
![[Sales start 10 PM on 6/26] Limited to 30 sets: 1 in 10 is a pair of 2 stones - Zambian emerald loose stone (approx. 6x4mm, emerald cut) with deep color. (Multiple purchase discount available)](http://store.karatz.jp/cdn/shop/files/collage_7d2f620b-700f-46fb-846b-e73a39606c51.png?v=1782813430&width=3000)
![[On Sale June 6th at 10 PM JST] "Limited 13 Stones" Fluorite Gacha including flawed Koshu cut gemstones "Bulk Purchase Discount Available"](http://store.karatz.jp/cdn/shop/files/collage_e24ee4a0-1bb9-4e19-9a6a-6fa75b4cf864.png?v=1782726871&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_1ee7abcc-c785-4fbd-899f-b5b6978964a7.png?v=1782794728&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/Gemini_Generated_Image_2cwd9n2cwd9n2cwd.png?v=1783069206&width=2048)



















![[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)