NEWS
New and updated on 5/19 (Mon)
【5/22 22時販売】ミャンマー産ターフェアイト 0.201ctルース 日独
Sale price¥25,800
【5/22 22時販売】ミャンマー産ターフェアイト 0.277ctルース 日独
Sale price¥39,800
【5/22 22時販売】タイ産ピジョンブラッドルビー 0.380ctルース AIGS
Sale price¥59,800
【5/22 22時販売】ビルマ産ルビー 3.725ctルース GIA&中宝
Sale price¥198,000
German Awinite 0.119ct loose stone
Sale price¥49,800
German Awinite 0.129ct loose stone
Sale price¥55,800
Violet spinel 0.541ct loose stone
Sale price¥9,800
Kornerupine 0.616ct loose stone
Sale price¥49,800
Kornerupine 0.500ct loose stone
Sale price¥39,800
Bicolor Tanzanite 0.585ct loose stone
Sale price¥15,800
Sierra Leone Yellow Diamond Rough (Sawable) 0.102ct Rough
Sale price¥22,800
Tanzanian Mandarin Garnet 0.579ct Loose Stone
Sale price¥39,800
[12542637] Peridot 2.651ct loose stone
Sale price¥19,800
【5/23 22時販売】アメリカ産レッドベリル 0.108ctルース(マーキースカット)
Sale price¥15,800
【5/23 22時販売】ブラジル産ウォーターメロントルマリン 14.780ctルース (バイアカラートルマリン)
Sale price¥128,000
【5/23 22時販売】ミャンマー産マスグラバイト 0.214ctルース 日独鑑
Sale price¥258,000
[12558827] Yellow sapphire 0.349ct loose stone
Sale price¥15,800
[12559342] Brazilian indigolite tourmaline 0.191ct loose stone
Sale price¥9,800
【5/21 22時販売】ブラジル産パライバトルマリン 0.215ctルース(CuO:1.1%、MnO:3.3%)
Sale price¥55,800
【5/21 22時販売】ミャンマー産フォルステライト 0.887ctルース 日独鑑
Sale price¥15,800
【5/21 22時販売】ミャンマー産フォルステライト 0.655ctルース 日独鑑
Sale price¥15,800
【5/21 22時販売】ブラジル産ティンカーベルクォーツ(ピンクファイヤークォーツ) 4.670ctルース
Sale price¥18,800
List of new arrivals
【5/20 22時販売】アフガニスタン産クンツァイト 8.609ctルース
Sale price¥14,800
【5/20 22時販売】マダガスカル産ラブラドライト 0.931ctルース
Sale price¥8,800
【5/20 22時販売】マダガスカル産アンデシン・ラブラドライト(通称名 レインボームーンストーン) 1.652ctルース
Sale price¥18,800
【5/20 22時販売】オーストラリア産ボルダーオパール 41.770ctルース
Sale price¥29,800
【5/20 22時販売】オーストラリア産ボルダーオパール 15.020ctルース
Sale price¥18,800
【5/20 22時販売】オーストラリア産ボルダーオパール 12.220ctルース
Sale price¥12,800
[On sale from 10pm on 5/16] Mexican Cantera Opal 6.112ct loose stone
Sale price¥59,800
[On sale from 10pm on 5/18] Australian white opal 2.318ct loose
Sale price¥12,800
[On sale from 10pm on 5/18] Australian Opal 1.390ct Loose
Sale price¥9,800
[On sale from 10pm on 5/19] Madagascar Iolite 1.215ct loose stone
Sale price¥14,800
[On sale from 10pm on 5/18] Malawi bicolor zircon 0.621ct loose stone
Sale price¥29,800
jewelry
[On sale from 10pm on 4/19] Pt950 Colombian euclase 0.07ct diamond ring
Sale price¥89,800
Limited Quantity: K18 Yellow Gold Kihei Chain Necklace 1.0mm/1.6g [40cm]
Sale price¥26,800
[Colorful] K18WG Brown Diamond Ring
Sale price¥69,800
K18YG Afghan Kunzite 0.74ct, Tanzanite, Sapphire Ring
Sale price¥79,800
Pt900 Tanzanian Malaya Garnet 2.01ct Diamond Pendant (Necklace)
Sale price¥59,800
Pt900 Russian Demantoid Garnet (Horsetail) 0.30ct and Diamond 0.30ct Ring
Sale price¥128,000
Pt900 Kashmir unheated sapphire 1.14ct / diamond 0.70ct ring GIA
Sale price¥1,580,000
Pt900 Colombian emerald 0.60ct diamond 0.19ct ring
Sale price¥98,000
Pt900 Colombian emerald 0.72ct, diamond 0.61ct ring
Sale price¥158,000
Pt900/Pt850 Brazilian Alexandrite 0.2ct Diamond Pendant (Necklace)
Sale price¥79,800
Pt900/Pt850 Australian Black Opal 0.37ct Diamond 0.73ct Necklace
Sale price¥198,000
K18YG Brazilian Paraiba Tourmaline 0.30ct Diamond Ring GIA
Sale price¥198,000
Pt950 American Orange Benitoite 0.072ct Benitoite Ring
Sale price¥158,000
《Products eligible for multiple purchase discount》
Custom-made with a choice of stones
Items under 10,000 yen
【5/20 22時販売】マダガスカル産ラブラドライト 0.931ctルース
Sale price¥8,800
[On sale from 10pm on 5/18] Australian Opal 1.390ct Loose
Sale price¥9,800
Black star sapphire 0.930ct loose
Sale price¥6,980
[On sale from 10pm on 5/11] Brazilian Morganite 0.633ct loose stone
Sale price¥9,800
[On sale from 10pm on 5/9] South African diamond 0.210ct rough stone
Sale price¥8,800
[On sale at 22:00 on 5/12] Blue sapphire 4.0mm/0.243ct loose stone
Sale price¥7,980
Garden quartz 8.690ct loose
Sale price¥2,980
[On sale 5/3 at 22:00] Montana Agate 6.534ct loose stone
Sale price¥6,980
[On sale from 22:00 on 5/5] Mexican water opal 0.304ct loose stone
Sale price¥8,800
[On sale from 10pm on 5/9] Mexican water opal 0.194ct loose stone
Sale price¥6,980
[On sale 5/3 at 22:00] Mexican water opal 0.300ct loose
Sale price¥8,800
[On sale from 10pm on 5/9] Mexican opal 0.513ct loose stone
Sale price¥8,800
[On sale 5/3 at 10pm] Mexican Opal 0.461ct Loose
Sale price¥8,800
[On sale 5/3 at 10pm] Australian Opal 0.371ct Loose
Sale price¥8,800
[On sale from 10pm on 5/9] Australian opal 0.678ct loose
Sale price¥5,980
[On sale from 10pm on 5/9] Australian opal 0.658ct loose
Sale price¥8,800
[On sale from 10pm on 5/5] Australian opal 0.423ct loose
Sale price¥6,980
[On sale from 10pm on 5/5] Australian opal 0.706ct loose stone
Sale price¥8,800
jeweler's tools
[Jeweler's Tools] Color change penlight loose set
Sale price¥4,980
[Jeweler's Tools] Digital Caliper Color Shift Amethyst 2 Piece Set
Sale price¥2,980
[Jeweler's Tools] White penlight (for loose), loose 3-piece set
Sale price¥5,980
Jeweler's tool "plate light"
Sale price¥3,800

KARATZ Custom Made
Why not take your favorite gemstone that you found at KARATZ and have it made into custom-made jewelry? It will be made by skilled Japanese craftsmen.
We carefully craft each piece of jewelry, starting with the stone setting, to match the individual characteristics of the gemstone.

KARATZ publishes "Gemstone Encyclopedia"
The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.