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Sold out 【12562637掲載】マラウイ産ムーンストーン（マラウイムーンストーン） 2.808ctルース

2.808ct Malawi Moonstone Loose
Sold out 【12562641掲載】マラウイ産ムーンストーン（マラウイムーンストーン） 4.198ctルース

Malawi Moonstone 4.198ct Loose Stone
Sold out Unheated Pigeon Blood Ruby 0.260ct Loose Stone AIGS

Unheated Pigeon Blood Ruby 0.260ct Loose Stone AIGS
Sold out 【ゆきんこカット】合成サファイア 2.220ctルース（合成ブルーサファイア）

[Yukinko Cut] Synthetic Sapphire 2.220ct Loose (Synthetic Blue Sapphire)
Sold out カナダ産ダイヤモンド原石（ソーヤブル） 0.328ct原石（トライゴン有り）

Canadian raw diamond (sawable) 0.328ct raw (with trigons)
Sold out マダガスカル産ベキリーブルーガーネット（カラーチェンジガーネット） 0.089ctルース

Bekily Blue Garnet from Madagascar (color change garnet) 0.089ct loose
Sold out 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） 0.463ctルース

0.463 ct Loose Madagascar Andesine-Labradorite (Common Name: Rainbow Moonstone)
Sold out カンボジア産ブルージルコン 1.757ctルース

Cambodian Blue Zircon 1.757ct Loose
Sold out 【Sakura Shape】Oregon Sunstone 1.174ct Loose

【Sakura Shape】Oregon Sunstone 1.174ct Loose
Sold out [Sakura Shape] Synthetic Sapphire 3.285ct Loose Stone

[Sakura Shape] Synthetic Sapphire 3.285ct Loose Stone
Sold out ペルー産バイカラーブルーオパール 4.067ctルース

[On sale May 3rd, 10 PM JST] Peruvian Bi-Color Blue Opal 4.067ct Loose Stone
Sold out 【12562650掲載】ペルー産バイカラーブルーオパール 4.862ctルース

Peruvian Bicolor Blue Opal 4.862ct Loose
Sold out 【Sales start 10:00 p.m. on May 4th (JST)】Grandidierite from Madagascar, 0.112 ct loose stone

【Sales start 10:00 p.m. on May 4th (JST)】Grandidierite from Madagascar, 0.112 ct loose stone
Sold out 0.163 ct loose grandidierite from Madagascar

0.163 ct loose grandidierite from Madagascar
Sold out Brazilian Alexandrite Cat's Eye 0.097ct Loose Stone

Brazilian Alexandrite Cat's Eye 0.097ct Loose Stone
Sold out Brazilian Alexandrite Cat's Eye 2.6mm/0.111ct Loose Stone

Brazilian Alexandrite Cat's Eye 2.6mm/0.111ct Loose Stone
Sold out 【Sales start: May 4, 10 PM (JST)】 Zimbabwe Eudialyte 0.083ct Loose Gemstone

【Sales start: May 4, 10 PM (JST)】 Zimbabwe Eudialyte 0.083ct Loose Gemstone
Sold out ジンバブエ産ユークレース 0.120ctルース

【Available from 10 PM on May 10th】Euclase from Zimbabwe 0.120ct Loose Stone
Sold out ジンバブエ産バイカラーユークレース 0.132ctルース

[On sale May 5th at 10 PM] Zimbabwean bicolor euclase 0.132ct loose stone
Sold out Brazilian Paraiba Tourmaline (cabochon cut, approximately 2.2mm) 1 loose stone (multiple purchase discounts available)

Brazilian Paraiba Tourmaline (cabochon cut, approximately 2.2mm) 1 loose stone (multiple purchase discounts available)
Sold out 《New Tucson Arrivals・Limited to 13 Stones》Pakistani Lazurite (Azure Stone) Loose Stone《Multiple Purchase Discount Available》

《New Tucson Arrivals・Limited to 13 Stones》Pakistani Lazurite (Azure Stone) Loose Stone《Multiple Purchase Discount Available》
Sold out Tanzanian Rhodolite Garnet 0.410 ct Loose Stone

Tanzanian Rhodolite Garnet 0.410 ct Loose Stone
Sold out Loose 0.264ct Sri Lankan Blue Sapphire

Loose 0.264ct Sri Lankan Blue Sapphire
Sold out スリランカ産ブルーサファイア 0.826ctルース

Sri Lankan Blue Sapphire 5.5mm/0.826ct Loose Stone
Sold out メキシコ産オパール 0.244ctルース

【Sale from 10 PM on May 5th】Mexican Opal 0.244 ct Loose Stone (Contraluz Opal)
Sold out 【12561280掲載】ブラジル産レインボースキャポライト 0.393ctルース

Brazilian Rainbow Scapolite 0.393ct Loose Stone
Sold out Brazilian Alexandrite 2.7mm/0.105ct Loose Stone

Brazilian Alexandrite 2.7mm/0.105ct Loose Stone
Sold out Brazilian alexandrite 0.109ct loose

Brazilian alexandrite 0.109ct loose
Sold out 【32501804掲載】ダイヤモンド 0.185ctルース(I, SI1)

Diamond 0.185ct Loose Stone (I, SI1, Ashoka Cut)
Sold out 【22602551掲載】K18 血赤珊瑚 0.56ct リング

K18 Blood Coral from Kochi Prefecture (0.56ct), Diamond (0.08ct) Ring
Sold out K18 Red Coral from Kochi Prefecture (0.41ct), Diamond (0.03ct) Ring

K18 Red Coral from Kochi Prefecture (0.41ct), Diamond (0.03ct) Ring
Sold out 【4/20 22時販売】シーライト 2.737ctルース - カラッツSTORE

Sealyite from California, USA, 2.737ct loose stone, with identification certificate
Sold out 【12561981掲載】アメリカ産オレゴンサンストーン 1.893ctルース

Oregon Sunstone from the USA, 8.1mm/1.893ct, loose
Sold out 【金平糖カット】カラーシフトアメジスト 3.499ctルース

[Confetti Cut] Color Shift Amethyst 3.499ct Loose Stone
Sold out コーネルピン 0.616ctルース

[#202603 Campaign Gacha Use] Tanzanian Kornerupine 0.616ct Loose Stone
coming soon モザンビーク産パライバトルマリン 0.784ctルース（CuO:0.3%,MnO:1.3%）

[12550887] Paraiba Tourmaline from Mozambique 0.784ct loose stone Sale price¥128,000
Sold out Limited to 14 stones: Beryllium-heated sapphire (3.5mm, KEN cut) - 1 loose stone. Discounts available for multiple purchases.

Limited to 14 stones: Beryllium-heated sapphire (3.5mm, KEN cut) - 1 loose stone. Discounts available for multiple purchases.
Sold out バイカラーゾイサイト 1.489ctルース

[Sale on hold due to E28 event announcement] [On sale at 22:00 on 4/6] Tanzanian bicolor zoisite 6.7mm/1.489ct loose stone
Sold out マダガスカル産バイカラーサファイア 0.765ctルース

【Sales start June 14, 10 PM JST】Madagascar Bi-Color Sapphire 5.4mm/0.765ct Loose
Sold out 【22602555掲載】K18 ターコイズ リング

K18 Turquoise Ring
Sold out ブラジル産スイスブルートパーズ 1.025ctルース

[Sale on June 17th at 10 PM] Brazilian Swiss Blue Topaz 1.025ct Loose Stone
Sold out スカイブルートパーズ 10.967ctルース

Sky blue topaz 10.967ct loose
Sold out K14WG ブルーサファイア 0.22ctct ペンダント（ネックレス）

[ColorFleuri] K14WG Blue Sapphire 0.22ct Pendant (Necklace)
Sold out 【12563291掲載】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） 1.904ctルース

【Sales start June 16, 10 PM JST】Madagascar Andesine-Labradorite (Common Name: Rainbow Moonstone) 1.904 ct Loose Stone

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・Five Commitments

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.