NEWS
2026/10/22
【Lottery Sale】
【10/26(月)AM10時〆：抽選販売_02】《ドゥン氏》スリランカ産マターレークォーツ 7.581ctルース
Sale price¥22,800
【10/26(月)AM10時〆：抽選販売_01】《ドゥン氏》スリランカ産マターレークォーツ 7.199ctルース
Sale price¥22,800
[Ref: 12564631] Moonstone from Ratnapura, Sri Lanka, 0.347ct loose stone
Sale price¥39,800
![[12564614] Unheated Color-Change Sapphire 1.270ct Loose Gemstone GIT](http://store.karatz.jp/cdn/shop/files/collage_6cddd31f-ed1b-4917-9722-5451609ed1f6.png?v=1792645202&width=2000)
[12564614] Unheated Color-Change Sapphire 1.270ct Loose Gemstone GIT
Sale price¥198,000
![[Item No. 12564572] Russian Alexandrite Cat's Eye 0.363ct Loose Stone](http://store.karatz.jp/cdn/shop/files/collage_d5365f53-874b-4dc6-b679-28e043886810.png?v=1792644900&width=2000)
[Item No. 12564572] Russian Alexandrite Cat's Eye 0.363ct Loose Stone
Sale price¥69,800
[12564626] Brazilian Bicolor Tourmaline 20.692ct Loose Gemstone
Sale price¥188,000
![[Item 12564658] Brazilian Alexandrite 0.190ct Loose Stone GIA](http://store.karatz.jp/cdn/shop/files/collage_a1c8b88c-68bd-4f26-af28-1f0015f72189.png?v=1792644851&width=2000)
[Item 12564658] Brazilian Alexandrite 0.190ct Loose Stone GIA
Sale price¥128,000
【10/26(月)AM10時〆：抽選販売_05】エチオピア産パライバトルマリン 0.158ctルース（CuO:2.618%、Mno:0.688%）
Sale price¥158,000
【10/26(月)AM10時〆：抽選販売_04】エチオピア産パライバトルマリン 0.134ctルース（CuO:2.209%、Mno:0.639%）
Sale price¥128,000
10/17 (Sat) New & Updated
![[10/ 22:00 Sale] 《Limited to 15 Stones》 Rare Stone Gacha 《Multiple Purchase Discount Available》](http://store.karatz.jp/cdn/shop/files/collage_050a75e9-20d3-45c3-b236-bae30a97bc35.png?v=1792237901&width=2000)
【10/23 22時販売】《限定3石》クォーツアイトガチャ1石ルース（カスタムカット、4.7～4.9ｍｍ、サンジェ氏）《複数購入割引有》
Sale price¥3,980
【10/23 22時販売】《限定2石》クォーツアイトガチャ1石ルース（ローズカット、5.5～6.1ｍｍ、サンジェ氏）《複数購入割引有》
Sale price¥5,980
【10/24 22時販売】《限定3石》アイスブルージルコン（ラウンドカット2.7～2.9ｍｍ、サンジェ氏）《複数購入割引有》
Sale price¥3,980
【10/24 22時販売】《限定3石》アイスブルージルコン（ラウンドカット3.3ｍｍ、サンジェ氏）《複数購入割引有》
Sale price¥4,580
【10/24 22時販売】《限定3石》アイスブルージルコン（ラウンドカット3.5～3.6ｍｍ、サンジェ氏）《複数購入割引有》
Sale price¥4,980
![[Available from 10/22] <<limited to stones>> Tanzanian Winza Sapphire, Avg. 0.47ct <<multi-purchase discount available>></multi-purchase></limited>](http://store.karatz.jp/cdn/shop/files/collage_3491990c-c886-4740-824c-edc3c5228775.png?v=1792227669&width=2000)
[Available from 10/22] <> Tanzanian Winza Sapphire, Avg. 0.47ct <>
Sale price¥7,980
【10/24 22時販売】《限定10石》タンザニア産ゾイサイトガチャ（平均3.5ct、カボションカット、含浸処理）《複数購入割引有》
Sale price¥2,980
【10/25 22時販売】《限定7セット》タンザニア産ミントダイオプサイド2石セット（原石＆訳ありルース）《複数購入割引有》
Sale price¥5,980
![[Item 12564659] Poudretteite from Myanmar, 0.024ct loose stone](http://store.karatz.jp/cdn/shop/files/PA139594_a071c8dc-d6ab-4b49-972d-1e794b0034b6.jpg?v=1792383822&width=2533)
![[Item 12565148] Ruby 0.552ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA150929_bd3f87e5-dc30-4b78-b414-36db1d1518fc.jpg?v=1792383156&width=2905)
[Item 12565148] Ruby 0.552ct Loose Stone
Sale price¥14,800
Brazilian Pink Tourmaline 0.628ct Loose Stone
Sale price¥14,800
Brazilian Green Tourmaline 0.350ct Loose
Sale price¥8,800
Brazilian Green Tourmaline 1.059ct Loose Stone
Sale price¥15,800
Mozambique Rubellite 1.706ct Loose Stone
Sale price¥39,800
Brazilian bicolor tourmaline cat's eye 22.056ct loose stone
Sale price¥188,000
Mexican Smithsonite 2.697ct loose stone
Sale price¥7,980
Mausithit from Myanmar 5.246ct loose (Maushitsit)
Sale price¥4,980
Mexican Fire Opal 0.780ct Loose
Sale price¥12,800
Diamond (cabochon cut) 0.183ct loose
Sale price¥24,800
Argentine Inca Rose 15.960ct loose stone
Sale price¥9,800
Congo Bicolor Tourmaline 3.429ct Loose
Sale price¥98,000
Rhodochrosite from South Africa 4.2mm/0.409ct loose
Sale price¥39,800
Argentine Inca Rose 15.190ct loose stone
Sale price¥9,800
![[Item 12565145] Bekily Blue Garnet (Color Change Garnet) from Madagascar, 0.231ct loose stone](http://store.karatz.jp/cdn/shop/files/collage_4c2db51b-020b-4b1e-83ba-ee2f8e5d182e.png?v=1792383366&width=2000)
Brazilian Tourmaline 0.858ct Loose Stone
Sale price¥15,800
Brazilian pink tourmaline 0.844ct loose stone
Sale price¥18,800
![[Item 12564681] Bekily Blue Garnet (Color Change Garnet) from Madagascar, 0.464ct Loose Gemstone](http://store.karatz.jp/cdn/shop/files/collage_ae2339fa-d208-448a-ae9a-a8980879fdb8.png?v=1792509230&width=2000)
![[Item 12564676] Madagascar Bekily Blue Garnet (Color Change Garnet) 0.394ct Loose Stone](http://store.karatz.jp/cdn/shop/files/collage_0fcc0774-4056-454c-934a-b986b379e647.png?v=1792509673&width=2000)
Brazilian Paraiba Tourmaline in Quartz 8.0mm/1.287ct Loose Stone
Sale price¥25,800
Brazilian Paraiba Tourmaline in Quartz 4.5mm/0.284ct Loose Stone
Sale price¥19,800
List of new arrivals
![[Item 12564594] Sri Lankan Uva Moonstone 0.566ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA090991.png?v=1792447719&width=4000)
[Item 12564594] Sri Lankan Uva Moonstone 0.566ct Loose Stone
Sale price¥9,800
Brazilian Green Tourmaline 1.193ct Loose Stone
Sale price¥39,800
Brazilian Green Tourmaline 11.453ct Loose Stone
Sale price¥158,000
Brazilian Green Tourmaline 9.495ct Loose
Sale price¥128,000
Brazilian Green Tourmaline 4.374ct Loose Stone
Sale price¥88,000
Nigerian Green Beryl 1.349ct Loose Stone
Sale price¥79,800
![[Item No. 22602841] [Colori] Pt900 Chrysoberyl Cat's Eye 2.35ct Diamond 0.31ct Ring with Appraisal Report](http://store.karatz.jp/cdn/shop/files/PA130210.jpg?v=1791961747&width=4000)
Colombian emerald loose stone 0.167ct
Sale price¥22,800
![[Ref: 12564456] Mozambique Aquamarine 0.837ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P9304778_1205a47a-754d-4e91-81eb-b5504df57807.jpg?v=1791985647&width=2889)
[Ref: 12564456] Mozambique Aquamarine 0.837ct Loose Stone
Sale price¥9,800
[Item 12564457] Sea Blue Chalcedony 2.001ct Loose Stone
Sale price¥18,800
[Item 12564468] Australian Black Opal 0.306ct Loose Stone
Sale price¥25,800
[Item 12564632] Pakistani Vanadium Sphene 1.579ct Loose Gemstone
Sale price¥69,800
[Item 12564642] Colombian Trapiche Emerald 1.036ct Loose Stone
Sale price¥69,800
![[Item 12564727] Tanzanite from Tanzania, 0.956ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA161228_4da8170d-bdbd-486f-ae4d-86ff94ad1c5a.png?v=1792382528&width=2767)
[Item 12564727] Tanzanite from Tanzania, 0.956ct Loose Stone
Sale price¥19,800
![[Item 12564726] Tanzanian Tanzanite 0.827ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA161194_34a90cb6-f6bd-440a-903e-8b45103fedf6.jpg?v=1792382570&width=2581)
[Item 12564726] Tanzanian Tanzanite 0.827ct Loose Stone
Sale price¥18,800
![[Ref: 12564725] Tanzanite from Tanzania, 0.892ct loose stone](http://store.karatz.jp/cdn/shop/files/PA161160_9cba6231-1457-400e-ae3e-9308c6a7ec4f.jpg?v=1792382627&width=2541)
[Ref: 12564725] Tanzanite from Tanzania, 0.892ct loose stone
Sale price¥18,800
![[12565162 Listed] Spessartine Garnet from Tanzania 0.739ct Loose Gemstone](http://store.karatz.jp/cdn/shop/files/PA161448_243e02f0-2e83-4100-8b35-63af2035a16e.jpg?v=1792382653&width=2629)
![[12565160] Tsavorite from Kenya, 0.439ct loose stone](http://store.karatz.jp/cdn/shop/files/PA161340_e9b54c47-c843-4afa-bbba-fadffd6b940d.jpg?v=1792382690&width=2221)
[12565160] Tsavorite from Kenya, 0.439ct loose stone
Sale price¥29,800
![[12565159] Tsavorite from Kenya, 0.314ct loose stone](http://store.karatz.jp/cdn/shop/files/PA161240_ed32b27d-d371-4d3b-aeca-48002cceb5f1.jpg?v=1792382731&width=2702)
[12565159] Tsavorite from Kenya, 0.314ct loose stone
Sale price¥18,800
![[Available 10/18 at 22:00] Brazilian Microlite 0.058ct Loose Gemstone with Identification Report](http://store.karatz.jp/cdn/shop/files/PA150177_5910b413-229d-4339-a3a6-1fb7af1786ea.jpg?v=1792069360&width=2739)
![[10/18 10:00 PM Release] Tanzanian Mandarin Garnet 4.5mm/0.529ct Loose Stone with Identification Report](http://store.karatz.jp/cdn/shop/files/PA161584_087bf08f-b8c4-4ad5-839e-853ddac9d8b6.jpg?v=1792157662&width=3280)
![[Available 10/18 at 10 PM] Ruby 0.185ct Loose Stone with Appraisal Report](http://store.karatz.jp/cdn/shop/files/PA150875_4600c571-0d42-4c35-a216-6d7c8c0da4fc.jpg?v=1792157766&width=2776)
![[Available 10/19 at 10 PM] [Color-Full] 18K Gold Mother-of-Pearl Cat Motif Pendant Top with 0.01ct Diamond (Includes Appraisal Report)](http://store.karatz.jp/cdn/shop/files/PA130352.jpg?v=1791962023&width=4000)
![[Item 12564407] Stibiotantalite from Afghanistan, 0.200ct loose stone](http://store.karatz.jp/cdn/shop/files/P9087102_156cecc1-8841-415e-947e-90507c14a237.jpg?v=1791932462&width=3296)
[Item 12564407] Stibiotantalite from Afghanistan, 0.200ct loose stone
Sale price¥45,800
![[Item 12564406] Stibiotantalite from Afghanistan, 0.186ct loose stone](http://store.karatz.jp/cdn/shop/files/P9087172_7634593e-09c8-423c-a8d1-5fb037b38167.jpg?v=1791931980&width=3267)
[Item 12564406] Stibiotantalite from Afghanistan, 0.186ct loose stone
Sale price¥45,800
![[Item No. 12564322] Burmese Red Spinel 0.176ct Loose Gemstone](http://store.karatz.jp/cdn/shop/files/P9090184_9700c589-2ea2-4930-80df-edac6c0e1e4b.jpg?v=1791931653&width=2569)
[Item No. 12564322] Burmese Red Spinel 0.176ct Loose Gemstone
Sale price¥17,800
![[Item 12564569] Russian Non-Oiled Emerald 0.121ct Loose Gemstone](http://store.karatz.jp/cdn/shop/files/PA056832_d8692e6e-41d7-484a-8fb3-f15f7831d546.png?v=1791931343&width=2289)
[Item 12564569] Russian Non-Oiled Emerald 0.121ct Loose Gemstone
Sale price¥49,800
![[Item 12564624] Tanzanian Cobalt Spinel 0.094ct Loose Gemstone](http://store.karatz.jp/cdn/shop/files/PA056278_9e257c06-11b3-4bdf-9629-db55fd3ecd95.jpg?v=1791930983&width=2918)
[Item 12564624] Tanzanian Cobalt Spinel 0.094ct Loose Gemstone
Sale price¥47,800
![[Item 12564627] Bekily Blue Garnet (Color-Change Garnet) from Madagascar, 0.620ct Loose Stone](http://store.karatz.jp/cdn/shop/files/collage_66b45918-a745-4339-8b28-20879c90c42f.png?v=1791930312&width=2000)
![[12560799 Listed] Brazilian Elestial Amethyst 0.819ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA142945_0d69cc72-f4a9-438e-af83-f398b225883b.jpg?v=1792122350&width=4000)
[12560799 Listed] Brazilian Elestial Amethyst 0.819ct Loose Stone
Sale price¥9,800
![[Item No. 12560796] Brazilian Elestial Amethyst 1.965ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA142921.jpg?v=1792122009&width=4000)
[Item No. 12560796] Brazilian Elestial Amethyst 1.965ct Loose Stone
Sale price¥18,800
![[12560786] Nigerian Green Beryl 0.621ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PA142855.jpg?v=1792121929&width=4000)
[12560786] Nigerian Green Beryl 0.621ct Loose Stone
Sale price¥8,800
Brazilian Mint-Colored Tourmaline 0.294ct Loose Stone
Sale price¥15,800
Zambian Emerald 0.188ct Loose Stone
Sale price¥9,800
Mozambique Almandine Garnet 1.144ct Loose Stone
Sale price¥15,800
![[Item 12564325] Kenya Gold Sheen Sapphire (Star Sapphire) 0.477ct Loose Gemstone](http://store.karatz.jp/cdn/shop/files/P9098894_9e71d12f-afda-46cb-99c2-1c15650319a3.jpg?v=1791805575&width=3070)
Australian Black Opal 0.421ct Loose Stone
Sale price¥18,800
《Products eligible for multiple purchase discount》
![[Available 10/12 at 10 PM] 《Limited to 1 stone》 FANCY LIGHT PINK 2.9mm/0.092ct FANCY Color Pink Diamond (Sorting report included) 《Multi-buy discount available》](http://store.karatz.jp/cdn/shop/files/2026-10-1717.21.50_b5bd12df-a26a-4558-b937-050e8f74386f.png?v=1792225381&width=1256)
![[10/22, 10:00 PM Sale] <limited to stones> Sky Blue Topaz (Round approx. 8mm, only one stone is approx. 10mm) <multiple purchase discount available></multiple></limited>](http://store.karatz.jp/cdn/shop/files/PA050720_0c803cec-809e-4351-8ed4-19b5405d1e2a.jpg?v=1791592314&width=4000)
![[Available 9/22 at 22:00] 《7 Stones Only》 Moss Green Beryl Gacha (Oval Cut) Avg. 1.16ct 《Multi-buy Discount Available》](http://store.karatz.jp/cdn/shop/files/collage_28d6bd84-5d8c-4dd5-a10a-941c9b7f88ba.png?v=1791725690&width=2000)
![[9/22 8:00 PM Sale] Fluorite Gacha: Win a Koshu Kiseki Kiriko (Limited to 16 stones) [Multi-purchase discount available]](http://store.karatz.jp/cdn/shop/files/120_1.png?v=1791601105&width=1890)
![[Available 9/22, 10 PM] 《11 Stones Limited》 Tourmaline Gacha (includes Brazilian Paraiba Tourmaline) 《Multi-purchase discount available》](http://store.karatz.jp/cdn/shop/files/collage_5f4197b2-6b60-4862-94c5-29f0dfdd2d10.png?v=1791504471&width=2000)
![[On Sale 10/10 at 22:00] 《Limited to 15 stones》 Jaipur-cut Carved Gem Gacha 《Multi-purchase discount available》](http://store.karatz.jp/cdn/shop/files/122.png?v=1791168528&width=1890)
![[Available Oct 9, 10:00 PM] <<limited quantity>> Lab-Grown Diamond Cabochon Loose Stone (1pc) (CVD / 2.4-2.7mm) <<multi-purchase discount available>></multi-purchase></limited>](http://store.karatz.jp/cdn/shop/files/PA020298.jpg?v=1791188631&width=4000)
![[Available Oct 12, 10 PM] <limited to stones> Madagascar Blue Sapphire Loose Stone (Cabochon cut, avg. 0.70ct) <multi-buy discount available></multi-buy></limited>](http://store.karatz.jp/cdn/shop/files/PA011243.jpg?v=1791163737&width=4000)
![[Available 10/3 at 10:00 PM] <limited to stones> Chic-colored FANCY color diamond gacha, sourced in Hong Kong, 1 loose stone (avg. 0.35ct) <multi-purchase discount available></multi-purchase></limited>](http://store.karatz.jp/cdn/shop/files/collage_3e17ed11-0933-4397-ab56-b8095908190a.png?v=1790933063&width=2000)
![[Oct 3, 10:00 PM Release] 《21 Stones Only》 Chic-colored FANCY color diamond gacha, 1 loose stone (0.16ct average), sourced in Hong Kong 《Multi-purchase discounts available》](http://store.karatz.jp/cdn/shop/files/collage_a6b77cfc-715f-4208-8ba2-42d6d800956d.png?v=1790931568&width=2000)
![[Available Oct 3, 10 PM] <limited stones> Moldavite loose stone from former Czechoslovakia (8x6mm, oval cut) <multi-purchase discount available></multi-purchase></limited>](http://store.karatz.jp/cdn/shop/files/collage_d1eefbe6-2e76-4e63-8dad-0398d243f5e7.png?v=1790922792&width=2000)
![[Available 10/3 at 10 PM] <limited to stones> Mexican Cantera Opal Gacha - 1 Loose Stone (Avg. 2.5ct) <multi-purchase discounts available></multi-purchase></limited>](http://store.karatz.jp/cdn/shop/files/P9250397.jpg?v=1790400242&width=4000)
![[10/2 10 PM Sale] <<limited to stones>> Brazilian Bicolor Amethyst Gacha - 1 loose stone (approx. 9x7mm) <<multi-purchase discount available>></multi-purchase></limited>](http://store.karatz.jp/cdn/shop/files/collage_5e97712b-2ccb-4420-9be9-481ee853d563.png?v=1790771941&width=2000)
![[Available 10/2 at 10 PM] 《Limited to 16 stones》 Indian Andesine-Labradorite Gacha Loose Stone, Ojiki-cut (Avg. 1.3ct) 《Multi-purchase discounts available》](http://store.karatz.jp/cdn/shop/files/collage_6ac73e79-de81-46d0-ac91-9059bbe6a442.png?v=1790771658&width=2000)
Bungo and Alchemist
[Posted on 22602707] [Colorful] Pt900 Rubellite 1.308ct Ring
Sale price¥158,000
[Item 22602808] [Colori] K18WG Diamond Pendant (Necklace)
Sale price¥148,000
[Item 22602768] [Color-Full] K18 0.35ct Diamond Ring with Appraisal Report
Sale price¥128,000
[Item 22602770] K18 Imperial Topaz Ring with Appraisal Report
Sale price¥128,000
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So that more people can feel closer to jewellery and enjoy it easily.
We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.
KARATZ's Initiatives and Social Contributions
We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.
KARATZ Books
These are books that KARATZ has been involved in writing, supervising, and planning. They are all books that allow you to enjoy gemstones from various angles. You can also purchase them directly.
jeweler's tools
For those who want to enjoy jewelry more but don't know what tools to use, we will introduce tools that are also used by KARATZ staff. You can also purchase them directly.