[Lottery sale: Friday, October 31st, 10:00 AM]
![[Lottery Sale 0117_04] [Sakura In-Cut] Mali Garnet (Grossular/Andradite Garnet) from the Republic of Mali, 6.0mm/0.920ct Loose Stone with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/PC250997.jpg?v=1767748956&width=4000)
![[Lottery Sale 0117_05] American Oil-Free Red Beryl 2.6mm/0.050ct Loose GIA](http://store.karatz.jp/cdn/shop/files/P9128539_b6535b54-939c-48a7-b6f3-c8d1c8e8ae6f.jpg?v=1768606430&width=2843)
![[Lottery Sale 0117_08] Brazilian Bicolor Tourmaline 7.017ct Loose](http://store.karatz.jp/cdn/shop/files/PC093759.jpg?v=1766186346&width=4000)
[Lottery Sale 0117_08] Brazilian Bicolor Tourmaline 7.017ct Loose
Sale price¥198,000
![[Lottery Sale 0117_07] Zambian Bicolor Tourmaline 4.142ct Loose](http://store.karatz.jp/cdn/shop/files/PC093897.jpg?v=1768606373&width=4000)
[Lottery Sale 0117_07] Zambian Bicolor Tourmaline 4.142ct Loose
Sale price¥98,000
![[Lottery Sale 0117_09] Unheated Purple Sapphire from Madagascar 1.170ct Loose GIT](http://store.karatz.jp/cdn/shop/files/P1149041.jpg?v=1768606058&width=4000)
![[Lottery Sale 0117_10] Unheated Blue Sapphire from Madagascar, 1.380ct Loose, AIGS](http://store.karatz.jp/cdn/shop/files/P1148810.jpg?v=1768532425&width=4000)
![[Lottery Sale 0117_01] [Sakura In-Cut] Oregon Sunstone from the United States, 6.0mm/0.638ct Loose](http://store.karatz.jp/cdn/shop/files/PC251295.jpg?v=1768606296&width=4000)
![[Lottery Sale 0117_02] [Sakura Shape] 1.201ct Loose Oregon Sunstone from the United States](http://store.karatz.jp/cdn/shop/files/PC251174.jpg?v=1768606295&width=4000)
![[Lottery Sale 0117_03] [Dandelion Cut] Madagascar Sphene 6.0mm/0.775ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC251498.jpg?v=1767750012&width=4000)
[12547734 published] American non-oil red beryl 0.085ct loose
Sale price¥148,000
New arrivals and updates on 1/20 (Tue)
![[Available at 10 PM on January 18th] Limited to 16 Diamonds: Fancy Purple Pink/SI-1/Pink Diamond Gacha (Multiple Purchase Discounts Available)](http://store.karatz.jp/cdn/shop/files/1_71afbd6d-d198-48c8-bf35-2191e0a05780.png?v=1767867187&width=4000)
![[Available at 10 PM on January 1st] Limited Edition 13 Stones Rare Stone Gacha💎 Shinsha, Zimbabwean Euclase, Red Beryl, Kornerupine, Benitoite, and Clinozoisite (Multiple Purchase Discounts Available)](http://store.karatz.jp/cdn/shop/files/7_2bc667ca-b433-42ac-93d4-b14c1b4abcf1.png?v=1768723684&width=1500)
![[Limited to 15 stones] Kornerupine Gacha 💎 Win Tanzanian Kornerupine (Prismatine) with a Japanese-German Appraisal (Multiple purchase discounts available)](http://store.karatz.jp/cdn/shop/files/collage_eab929d8-59b2-44d1-bcf1-913f3e032eae.png?v=1768894920&width=2250)
![[Available at 10 PM on January 1st] [Limited to 16 stones] Win Cornflower Blue and Royal Blue Sapphires with Certificates of Authenticity in the Blue Sapphire Gacha! [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/8_f379f01a-42ed-4708-8b42-52277132a11a.png?v=1768729248&width=2000)
South African gray diamond (makeable) 0.169ct rough stone
Sale price¥14,800
South African yellow diamond (makeable) 0.193ct rough stone
Sale price¥8,800
Paraiba tourmaline from Brazil 0.132ct loose (CuO:2.1%.MnO:2.2%)
Sale price¥188,000
American benitoite 0.069ct loose
Sale price¥19,800
Pakistani Peridot 0.649ct Loose Stone
Sale price¥8,800
Unheated silky pink sapphire from Vietnam 0.202ct loose
Sale price¥6,980
Tibetan bicolor andesine 1.972ct loose
Sale price¥19,800
Tibetan bicolor andesine 1.856ct loose
Sale price¥16,800
Bicolor Euclase from Zimbabwe 0.375ct Ruth Japanese-German Edition
Sale price¥98,000
Rubellite 7.068ct loose Japanese-German book
Sale price¥498,000
Myanmar orange jade (jade) 0.584ct loose
Sale price¥4,980
Myanmar orange jade (jade) 0.531ct loose
Sale price¥4,980
【1/23 22時販売】【さくらインカット】南アフリカ産ロードクロサイト 7.6mm/1.544ctルース 日独鑑
Sale price¥158,000
【1/23 22時販売】ジンバブエ産スフェーン 7.0mm/1.661ctルース
Sale price¥59,800
【1/23 22時販売】アフガニスタン産クンツァイト 0.971ctルース
Sale price¥12,800
【1/23 22時販売】ベトナム産非加熱シルキーピンクサファイア 0.168ctルース
Sale price¥9,800
【1/23 22時販売】ベトナム産非加熱シルキーピンクサファイア 0.218ctルース
Sale price¥11,000
【1/24 22時販売】【さくらインカット】スリランカ・ラトゥナプラ産サファイア 6.0mm/0.839ctルース
Sale price¥59,800
![[On Sale at 10 PM on January 21st] Brazilian Green Tourmaline 1.233ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1159691_398f8f12-4f6e-4d7f-8173-0e3910d84df0.jpg?v=1768826939&width=2896)
![[On Sale at 10 PM on January 21st] Brazilian Indigolite Tourmaline 0.342ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1159781_27dc43e2-c0ac-48bc-be41-5e1933420908.jpg?v=1768826939&width=2728)
![[On Sale at 10 PM on January 21st] Rainbow Garnet (Andradite Garnet) 6.7mm/1.488ct Loose Stone from Tenkawa Village, Nara Prefecture](http://store.karatz.jp/cdn/shop/files/PC042544_6ede3236-d3e4-44d5-a190-93898fe1bd84.jpg?v=1765631000&width=4000)
![[On Sale at 10 PM on January 21st] Tanzanite from Tanzania 0.436ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC052723_f3d01ab6-8f8c-4558-a15e-96c2758ed7b1.jpg?v=1765587394&width=2909)
![[On Sale at 10 PM on January 21st] Tanzanite from Tanzania 0.730ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1159967_520088ea-e309-45fd-9700-80e7c203627f.jpg?v=1768827136&width=2948)
![[On sale at 10pm on January 21st] Tanzanite from Tanzania 0.467ct loose stone](http://store.karatz.jp/cdn/shop/files/PC052685_86d77fee-5916-4226-85f9-fb6b8067edb4.jpg?v=1768878572&width=2561)
![[On Sale at 10 PM on January 21st] Brazilian Aquamarine 6.294ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1159837_6d28fe7f-f2b5-4149-86ad-a9e474dbfbba.jpg?v=1768826992&width=3245)
[On Sale at 10 PM on January 21st] Brazilian Aquamarine 6.294ct Loose Stone
Sale price¥188,000
![[On sale at 10pm on January 21st] Afghanistan Kunzite 9.214ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1149481_7d13580c-24ec-4402-9131-ac76f9112cd7.jpg?v=1768826939&width=3460)
Tibetan bicolor andesine 1.818ct loose
Sale price¥18,800
Pakistani oil-in quartz 0.361ct loose
Sale price¥8,800
List of new arrivals
Pakistani oil-in quartz 0.361ct loose
Sale price¥8,800
Pakistani oil-in quartz 0.535ct loose
Sale price¥14,800
Tibetan bicolor andesine 1.818ct loose
Sale price¥18,800
Unheated silky pink sapphire from Vietnam 0.161ct loose
Sale price¥6,980
South African yellow diamond (makeable) 0.202ct rough stone
Sale price¥15,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 6.004ct loose
Sale price¥12,800
Demantoid garnet 15.468ct rough stone from Madagascar
Sale price¥9,800
Demantoid garnet 38.035ct rough stone from Madagascar
Sale price¥9,800
Mangano tantalite from Afghanistan 0.233ct loose
Sale price¥39,800
Sphene from Madagascar 0.498ct loose
Sale price¥6,980
American red beryl 0.143ct loose
Sale price¥15,800
American red beryl 0.115ct loose
Sale price¥12,800
American red beryl 0.208ct loose
Sale price¥22,800
American red beryl 0.141ct loose
Sale price¥14,800
Diamond 0.120ct loose (G, VS2, Excellent H&C)
Sale price¥25,800
Cambodian Blue Zircon 0.205ct Loose
Sale price¥3,980
Cambodian Blue Zircon 0.204ct Loose
Sale price¥3,980
Cambodian Blue Zircon 0.221ct Loose
Sale price¥3,980
Synthetic moissanite (gray blue) 1.701ct loose
Sale price¥12,800
Cambodian Blue Zircon 0.609ct Loose
Sale price¥5,980
Paraiba tourmaline from Mozambique 0.270ct loose
Sale price¥18,800
Mexican Water Opal 1.790ct Loose (Contralus Opal)
Sale price¥29,800
Paraiba tourmaline from Brazil 0.066ct loose
Sale price¥18,800
Morganite from Nigeria 0.889ct loose
Sale price¥4,980
Synthetic rutile 5mm/0.553ct loose stone
Sale price¥12,800
Synthetic rutile 5.8mm/0.904ct loose stone
Sale price¥12,800
American benitoite 0.097ct loose
Sale price¥24,800
American benitoite 0.101ct loose
Sale price¥25,800
American benitoite 0.127ct loose
Sale price¥28,800
American benitoite 0.133ct loose
Sale price¥29,800
American benitoite 0.102ct loose
Sale price¥22,800
American benitoite 0.098ct loose
Sale price¥25,800
American benitoite 0.187ct loose
Sale price¥39,800
Mint green sapphire 0.348ct loose
Sale price¥9,800
Mint color tourmaline 0.198ct loose
Sale price¥4,980
Mint color tourmaline 0.229ct loose
Sale price¥4,980
Bungo and Alchemist
![[Sale: Friday, December 19th, 10 PM] "Bungo and Alchemist" x KARATZ Collaboration Jewelry "Part 3" Bungo Ring [Oda Sakunosuke Model]](http://store.karatz.jp/cdn/shop/files/01.jpg?v=1764723334&width=1080)
![[Sale: Friday, December 19th, 10 PM] "Bungo and Alchemist" x KARATZ Collaboration Jewelry "Part 3" Bungo Ring [Edogawa Ranpo Model Ring]](http://store.karatz.jp/cdn/shop/files/02_db3f7ed0-177f-418b-b788-6f945e929acf.jpg?v=1764724403&width=1080)
![[Sale: Friday, December 19th, 10 PM] "Bungo and Alchemist" x KARATZ Collaboration Jewelry "Part 3" Bungo Ring [Kikuchi Kan Model Ring]](http://store.karatz.jp/cdn/shop/files/03_d1fff56d-18a4-444f-bd64-dfa11a0b9a45.jpg?v=1764724993&width=1080)
![[Sales End on November 15th] "Bungo to Alchemist" x KARATZ Collaboration Jewelry Bungo Ring [Dazai Osamu Model] {Almandine Garnet, Yellow Diamond}](http://store.karatz.jp/cdn/shop/files/bungou_pt2_bnr_01_1080x1080_137526cc-4d14-414f-8146-aef7dd597625.jpg?v=1747362836&width=1080)
![[Sales End on November 15th] "Bungo to Alchemist" x KARATZ Collaboration Jewelry Bungo Ring [Dazai Osamu Model] {Almandine Garnet, Yellow Diamond}](http://store.karatz.jp/cdn/shop/files/bungou_pt2_bnr_03_1080x1080_4ae0e7b4-416f-461b-b8f9-62a4548c4f0a.jpg?v=1747362865&width=1080)
![[Sales End on November 15th] "Bungo to Alchemist" x KARATZ Collaboration Jewelry Bungo Ring [Dazai Osamu Model] {Almandine Garnet, Yellow Diamond}](http://store.karatz.jp/cdn/shop/files/bungou_pt2_bnr_02_1080x1080_495f7ddb-bc4f-423e-a92a-d46753ed2f60.jpg?v=1747362846&width=1080)
![[Sales End on Monday, June 30th] "Bungo and Alchemist" x KARATZ Collaboration Jewelry Bungo Ring [Izumi Kyoka Model]](http://store.karatz.jp/cdn/shop/files/bungou_pt_bnr_03_1080x1080_ae440665-0722-4452-9979-2d399c01e85f.jpg?v=1747649128&width=1080)
![[Sales End on Monday, June 30th] "Bungo and Alchemist" x KARATZ Collaboration Jewelry Literary Ring [Akutagawa Ryunosuke Model]](http://store.karatz.jp/cdn/shop/files/bungou_pt_bnr_02_1080x1080_865ae236-c65a-4ca6-b64e-09a7550a2d74.jpg?v=1747649136&width=1080)
![[Sales End on Monday, June 30th] "Bungo to Alchemist" x KARATZ Collaboration Jewelry Bungo Ring [Dazai Osamu Model]](http://store.karatz.jp/cdn/shop/files/bungou_pt_bnr_01_1080x1080_2c12d88c-a968-40b6-b9d3-53dda0ee3890.jpg?v=1747649147&width=1080)
《Products eligible for multiple purchase discount》
![[Available at 10 PM on January 11th] Limited to 13 stones: Koshu Precious Stones "Moon-Shaped Cut Glass" Blue Topaz Loose Gacha Set, including 10ct Blue Topaz (Multiple Purchase Discounts Available)](http://store.karatz.jp/cdn/shop/files/collage_fcf69877-2d0f-4a7b-9d34-490158f4e3a6.png?v=1768048420&width=2250)
![Limited to 20 stones: Brazilian Paraiba tourmaline (cabochon cut, approximately 2.2 mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/PC190060_c4f87b12-3b41-4e2d-a32f-2338f4edfd21.jpg?v=1766651520&width=4000)
![Limited to 32 stones: Namibian Mandarin Garnet, 1 loose stone (round cut, 2.5mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/PB130022.jpg?v=1763179441&width=4000)
![Limited to 10 stones: Tanzanite rough stone gacha including bicolor pink tanzanite rough stones (average 4.2 carats) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_5799e77a-97c8-4d6c-b77b-dec5271cc0a0.png?v=1762053625&width=2250)
![Limited to 8 stones: Colombian mango quartz (up to 60 carats, average 21.6 carats) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/PA300162_a9e8f9be-8438-4ac9-b9c4-ab6cf29f7bbd.jpg?v=1762053108&width=4000)
Search by category
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 publishes "Gemstone Encyclopedia"
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.