New Arrivals & Updates on 9/3 (Wed)
【抽選販売01：9/19(金)10時am〆】_中国雲南省産リアルガー（鶏冠石） 10.735ct原石 日独鑑
Sale price¥15,800
[12557979] Malawi Bicolor Zircon 0.811ct Loose
Sale price¥29,800
[12557980] Malawi Bicolor Zircon 1.661ct Loose
Sale price¥69,800
【抽選販売04：9/19(金)10時am〆】_【ゆきんこカット】シベリアンブルークォーツ（合成クォーツ） 0.919ctルース
Sale price¥39,800
【抽選販売05：9/19(金)10時am〆】_【ゆきんこカット】シベリアンブルークォーツ（合成クォーツ） 0.894ctルース
Sale price¥49,800
![[12559388] Namibian Cuprite 1.061ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P8213900_7f6d343f-748a-4f2d-ac5d-b4d90d1992d9.jpg?v=1757851214&width=2849)
[12559388] Namibian Cuprite 1.061ct Loose Stone
Sale price¥35,800
【抽選販売07：9/19(金)10時am〆】_ノンオイルレッドベリル 2.5mm/0.050ctルース GIA
Sale price¥59,800
[Published on 12560233] Blue sapphire 1.141ct loose stone
Sale price¥25,800
![[12560236] Blue sapphire 0.417ct loose stone](http://store.karatz.jp/cdn/shop/files/P8255523_77f5dfad-cf60-41a8-8c6b-f0dc28ff424d.jpg?v=1757896870&width=3075)
[12560236] Blue sapphire 0.417ct loose stone
Sale price¥9,800
![[12560241] Pink sapphire 0.145ct loose stone](http://store.karatz.jp/cdn/shop/files/P8255717_42b384b3-6c7b-4fe9-b981-bd272ba49b48.jpg?v=1757896870&width=3130)
[12560241] Pink sapphire 0.145ct loose stone
Sale price¥6,980
【9/17 22時販売】マダガスカル産ブルーサファイア 0.244ctルース
Sale price¥8,800
[12556659] Oligoclase Sunstone 6.432ct Loose Stone
Sale price¥25,800
Bicolor spinel 0.737ct loose
Sale price¥25,800
American fluorite 0.842ct loose stone
Sale price¥2,980
Mexican Opal 8mm/1.430ct Loose
Sale price¥25,800
Sillimanite from Sri Lanka 1.586ct loose stone
Sale price¥8,800
Red beryl 0.173ct loose
Sale price¥29,800
Colombian mica in emerald 1.314ct loose
Sale price¥39,800
【9/16 22時販売】スリランカ産サファリン 0.116ctルース 鑑別書
Sale price¥25,800
【9/16 22時販売】ブラジル産インディゴライトトルマリン 4.0mm/0.240ctルース 鑑別書
Sale price¥29,800
【9/16 22時販売】ブラジル産デュモルチェライトインクォーツ 4.467ctルース
Sale price¥15,800
【9/16 22時販売】【猫カット(豹柄）】琥珀 0.906ctルース
Sale price¥9,800
【9/15 22時販売】《限定11石》ベトナム産シルキーピンクサファイア1石ルース（2.0-2.5mm,インクル多め）《複数購入割引有》
Sale price¥3,980
![[12560195] American Peridot 0.408ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P8083840_cdc67d99-d6ba-48ce-bdbb-e4cd38b8eed5.jpg?v=1757725346&width=3041)
[12560195] American Peridot 0.408ct Loose Stone
Sale price¥6,980
【9/15 22時販売】【さくらインカット】メキシコ産オパール 9mm/1.532ctルース
Sale price¥45,800
【9/15 22時販売】タンザニア産ドラゴンガーネット 0.977ctルース
Sale price¥27,800
![[12560192] American Peridot 0.376ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P8083708_29811ebf-a491-487b-99a6-7bd63725243e.jpg?v=1757725346&width=2550)
[12560192] American Peridot 0.376ct Loose Stone
Sale price¥6,980
[Cat cut] Blue green tourmaline 5.5mm loose
Sale price¥8,800
【9/15 22時販売】ブルーサファイア 0.591ctルース
Sale price¥9,800
Spinel 0.545ct loose (rose cut)
Sale price¥6,980
Russian demantoid garnet (horsetail recognized) 5.8mm/0.876ct loose
Sale price¥258,000
List of new arrivals
【9/13 22時販売】《限定12石》中国産シンシャ・辰砂1石ルース（全石鑑別書付き,平均1.10ct）1石ルース《複数購入割引有》
Sale price¥22,800
【9/12 22時販売】ミャンマー産ホットピンクスピネル 0.276ctルース
Sale price¥19,800
【9/11 22時販売】コロンビア産エメラルド 0.222ctルース
Sale price¥59,800
【9/11 22時販売】非加熱ピジョンブラッドルビー 0.300ctルース AIGS
Sale price¥79,800
Mexican Danburite 1.515ct loose stone (phantom cut)
Sale price¥8,800
Mexican Danburite 1.612ct loose stone (phantom cut)
Sale price¥8,800
Russian demantoid garnet (horsetail recognized) 4.4mm/0.394ct loose
Sale price¥69,800
Mexican fire agate 5.519ct loose
Sale price¥12,800
Russian demantoid garnet (horsetail recognized) 4.6mm/0.423ct loose
Sale price¥79,800
Paraiba tourmaline from Brazil 0.134ct loose (CuO:0.8%, MnO:2.3%)
Sale price¥25,800
Mexican fire agate 3.613ct loose
Sale price¥15,800
Green sapphire 7.545ct loose (spade cut)
Sale price¥59,800
Watermelon tourmaline 44.201ct Ruth Japanese-German book
Sale price¥398,000
Paudlettite 0.375ct loose Japanese-German book
Sale price¥298,000
Bicolor tourmaline 3.277ct loose
Sale price¥9,800
Particolor tourmaline 32.207ct loose (tricolor tourmaline)
Sale price¥398,000
Cantera opal 17.284ct loose
Sale price¥29,800
Brazilian Blue Topaz 14.890ct Loose
Sale price¥12,800
Fire opal 1.360ct loose
Sale price¥9,800
Russian demantoid garnet (horsetail recognized) 5.3mm/0.633ct loose
Sale price¥198,000
Sealight 2.666ct loose
Sale price¥18,800
Mexican Topaz 1.50ct Loose
Sale price¥9,800
Bangkacha sapphire (star sapphire) 69.655ct loose
Sale price¥148,000
[Mr. NOBU] Green Opal from Amazon [Collaboration] 6.8mm loose
Sale price¥6,980
[Cat cut] Amazon green opal 6.5mm/0.580ct loose
Sale price¥6,980
Red beryl 0.181ct loose
Sale price¥29,800
Conch pearl 0.390ct loose (pink white color)
Sale price¥18,800
Zircon 2.219ct loose (with crystals) Japanese-German edition
Sale price¥19,800
Rutilated Quartz (Rutilated Quartz) 82.385ct Loose Stone, Japan-Germany
Sale price¥29,800
Sealight 2.335ct loose
Sale price¥15,800
Sealight (Shealight) 1.940ct loose
Sale price¥15,800
Lavender Tanzanite 1.620ct Loose
Sale price¥12,800
Pink zircon 0.930ct loose
Sale price¥8,800
Afghanistan Clinozoisite 1.810ct Loose Stone (Phantom Cut)
Sale price¥8,800
![[Koshu precious stone Kiriko plusthree] Light citrine 2.490ct loose with patch](http://store.karatz.jp/cdn/shop/products/PA047853.jpg?v=1749164731&width=4000)
【9/9 22時販売】K18YGタンザニア産コーネルピン 0.217ct・アクアマリンリング
Sale price¥89,800
【9/14 22時販売】タンザニア産サンストーン 1.599ctルース
Sale price¥9,800
【9/14 22時販売】ブラジル産グリーン・スポジュメン 2.029ctルース
Sale price¥12,800
《Products eligible for multiple purchase discount》
【9/13 22時販売】《限定12石》中国産シンシャ・辰砂1石ルース（全石鑑別書付き,平均1.10ct）1石ルース《複数購入割引有》
Sale price¥22,800
【9/5 22時販売】《限定7石》ロシア産ノンオイルエメラルド1石ルース(1.6-1.7ｍｍ,プリンセスカット)《複数購入割引有》
Sale price¥9,800
【9/6 22時販売】《限定4石》マダガスカル産ピンクサファイア1石ルース(ペアシェイプ)《複数購入割引有》
Sale price¥5,980
![[On sale September 6th at 10 PM] [Limited to 7 stones] Madagascar sapphire, 1 loose stone (long hexagonal cut, approximately 5 x 3 mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010164.jpg?v=1756867626&width=4000)
![[On sale September 5th at 10 PM] Limited to 20 stones: Russian Demantoid Garnet (Horsetail inclusions, approximately 2mm) Loose Stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010052_5323a44e-e18e-4219-94e5-7d7bb0ecab84.jpg?v=1756867452&width=4000)
![[On sale at 10 PM on September 5th] Limited to 4 stones: One loose Russian demantoid garnet (oval cut, approximately 3 x 2 mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/S__218431492_56620792-286c-4261-91b5-7c3159b666aa.jpg?v=1756867553&width=1280)
![[On Sale] Limited to 15 Stones: Spinel & Friends Gacha - Musgravite, Taaffeite, Cobalt Garnite, and more. Bonus: 1 Platinum Spinel. Discounts available for multiple purchases.](http://store.karatz.jp/cdn/shop/files/collage_f5f33dc5-5eb0-473e-95ea-b3a1eaca4e19.png?v=1757146047&width=2000)
![[On sale at 10 PM on September 5th] [Limited to 3 stones] Brazilian Elestial Amethyst (1 loose stone, 3.5-3.9mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_a4907829-a1ef-40d2-ae34-572edef35c78.png?v=1756866168&width=2000)
![[On Sale at 10 PM on September 5th] [Limited to 6 stones] 1 Unheated Sri Lankan Sapphire Loose with Silk Inclusions (Average 0.31ct) [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/P1010278.jpg?v=1756866383&width=4000)
![[On sale at 10 PM on September 6th] [Limited to 6 stones] 1 loose unheated sapphire from Sri Lanka (average 0.77 carats) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010228_5399409f-afc5-4b03-b9cb-686160deb62e.jpg?v=1756866456&width=4000)
![[On sale at 10 PM on September 5th] [Limited to 6 stones] Tanzanian Bicolor Grossular Garnet (1 loose stone, average 0.55 carats) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010132.jpg?v=1756866630&width=4000)
![[On sale at 10 PM on September 5th] Limited to 10 stones: One Saint-Jay cut amethyst (5.0-5.5mm, special cut round) loose stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010004_fc3d5eba-9590-4a99-adb5-34ab662d33d3.jpg?v=1756867308&width=4000)
![[Available at 10 PM on August 31st] [Limited to 9 stones] Brazilian Rainbow Aquamarine Loose Stone (Average 1.0 carat, Pear Sheep Cut) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_a4d9bef3-5745-4730-8adf-5950e9068581.png?v=1756459860&width=2000)
![[Available at 10 PM on August 30th] Limited to 10 stones: Madagascar Sapphirine (Sapphirine) Loose Stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010321_de80d97b-aaa8-4f57-b4f7-655e79ff8b8e.jpg?v=1755939478&width=4000)
![[Available at 10 PM on August 27th] [Limited to 7 stones] Brazilian Limonite in Quartz (1 loose stone, average 6 carats) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_10790d8c-055f-404e-b91b-4dc8a6f1ff16.png?v=1756029326&width=2000)
![[Available at 10 PM on August 24th] [Limited to 4 stones] Brazilian Blue Topaz Cat's Eye Loose Stone (7.0-7.5mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_8bfa0fdf-e296-4b88-babb-a01dd576199f.png?v=1755995326&width=2000)
![[Available at 10 PM on August 24th] Limited to 12 stones: Madagascar Sapphirine (Sapphirine) Loose Stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010371_a123a6b4-46a8-4394-9eac-427d8a3707ec.jpg?v=1755996019&width=4000)
![[Available at 10 PM on August 23rd] Limited to 3 stones: Indian Andesine and Labradorite (Rainbow Moonstone) Flower Carving, 6mm, 1 stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010023.jpg?v=1755868377&width=4000)
【9/15 22時販売】《限定11石》ベトナム産シルキーピンクサファイア1石ルース（2.0-2.5mm,インクル多め）《複数購入割引有》
Sale price¥3,980
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.