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[Sale starts May 24th, 10 PM JST] 9 Limited Edition Kochi Prefecture Red Coral Branches (Rough) (1 Piece) (March Birthstone, Coral, average 6.5ct) (Multiple purchase discount available)

[Sale starts May 24th, 10 PM JST] 9 Limited Edition Kochi Prefecture Red Coral Branches (Rough) (1 Piece) (March Birthstone, Coral, average 6.5ct) (Multiple purchase discount available) Sale price¥6,980
[Sale 10 PM on June 5] "Limited 17 Stones" Emerald Gacha 💎 Win Koshu Kiseki Kiriko, rose-cut, and mint-colored emeralds, normally priced at 88,800 yen (multiple purchase discount available)

[Sale 10 PM on June 5] "Limited 17 Stones" Emerald Gacha 💎 Win Koshu Kiseki Kiriko, rose-cut, and mint-colored emeralds, normally priced at 88,800 yen (multiple purchase discount available) Sale price¥5,980
[On sale May 23rd at 10 PM] Limited 12 Stones: Russian Phenakite Single Stone Loose (average 0.35ct) - Multiple Purchase Discount Available

[On sale May 23rd at 10 PM] Limited 12 Stones: Russian Phenakite Single Stone Loose (average 0.35ct) - Multiple Purchase Discount Available Sale price¥9,800
[On sale May 29th at 10 PM] "Checker x Sui" Koshu Kiseki Cut Mexican Fire Opal (usually 79,800 yen) Gacha with only 10 stones available. Win a Fire Opal (and receive one Contraluz!). [Multiple purchase discount available]

[On sale May 29th at 10 PM] "Checker x Sui" Koshu Kiseki Cut Mexican Fire Opal (usually 79,800 yen) Gacha with only 10 stones available. Win a Fire Opal (and receive one Contraluz!). [Multiple purchase discount available] Sale price¥5,980
[On sale May 10th, 10 PM JST] 《Limited 4 Stones》Madagascar Pezzottaite Loose Stone (Round Cut, approx. 3mm) cut by Mr. Sanje 《Multi-purchase discount available》

[On sale May 10th, 10 PM JST] 《Limited 4 Stones》Madagascar Pezzottaite Loose Stone (Round Cut, approx. 3mm) cut by Mr. Sanje 《Multi-purchase discount available》 Sale price¥6,980
[Sale starts 6/5 at 10 PM JST] 《Limited to 25 sets》Kochi Prefecture Red Coral Branch (Raw Wood) and 2 Loose Stones Set (March Birthstone, Coral) 《Multiple Purchase Discount Available》

[Sale starts 6/5 at 10 PM JST] 《Limited to 25 sets》Kochi Prefecture Red Coral Branch (Raw Wood) and 2 Loose Stones Set (March Birthstone, Coral) 《Multiple Purchase Discount Available》 Sale price¥6,980
ゴーシェナイト 0.846ctルース

Goshenite 0.846ct loose stone Sale price¥7,980
[On sale 5/23 at 10 PM] Limited to 5 stones: Burmese Ice Jadeite (approx. 3.3-3.8mm) - Multiple purchase discount available

[On sale 5/23 at 10 PM] Limited to 5 stones: Burmese Ice Jadeite (approx. 3.3-3.8mm) - Multiple purchase discount available Sale price¥5,980
GGG（ガドリウムガリウムガーネット） 0.658ctルース

[For sale May 13 at 10 PM] GGG (Gadolinium Gallium Garnet) 4.0mm/0.658ct Loose Stone Sale price¥8,800
マダガスカル産ラブラドライト 0.823ctルース

[Sales start 10 PM on 6/6] Madagascar Labradorite 0.823ct Loose Gemstone Sale price¥7,980
Sold out [On Sale June 6th at 10 PM] 《Only 1 Stone Left》Sri Lankan Dunilite, All Stones Come with a Gemstone Identification Report 《Bulk Purchase Discount Available》

[On Sale June 6th at 10 PM] 《Only 1 Stone Left》Sri Lankan Dunilite, All Stones Come with a Gemstone Identification Report 《Bulk Purchase Discount Available》
Sold out [On Sale 6/6] Blue Diamond (Treated) Gacha, including Ice Blue Diamond (normally ¥35,800), limited to 11 stones (plus 1 tapered cut stone) [Multiple Purchase Discount Available]

[On Sale 6/6] Blue Diamond (Treated) Gacha, including Ice Blue Diamond (normally ¥35,800), limited to 11 stones (plus 1 tapered cut stone) [Multiple Purchase Discount Available]
【12563326掲載】グリーンランド産タグトゥパイト 0.998ct原石

[On sale 6/7 10 PM JST] Greenland Tugtupite Rough 0.998 ct with Japanese and German certification Sale price¥9,800
{June Campaign Limited Edition} Rare Stone Gacha💎 Padparadscha Sapphire 0.3ct+ with Certificate, Benitoite, Red Beryl, etc. Loose Stones for 1 Stone {Multiple Purchase Discounts Available}

{June Campaign Limited Edition} Rare Stone Gacha💎 Padparadscha Sapphire 0.3ct+ with Certificate, Benitoite, Red Beryl, etc. Loose Stones for 1 Stone {Multiple Purchase Discounts Available} Sale price¥8,800
【Sales start May 30th, 10 PM JST】 Malawi Moonstone 2.601ct Loose

【Sales start May 30th, 10 PM JST】 Malawi Moonstone 2.601ct Loose Sale price¥5,980
マラウイ産ムーンストーン（マラウイムーンストーン） 1.475ctルース

[On Sale May 30th at 10 PM] Malawi Moonstone 1.475ct Loose Gemstone Sale price¥9,800
モンゴル産アンデシン 0.464ctルース

[On sale May 30th at 10 PM] Mongolian Andesine 0.464ct Loose Stone Sale price¥9,800
イエローオパール 0.372ctルース

Yellow Opal 0.372ct Loose (Faceted Cut) Sale price¥8,800
ピンクスピネル 0.713ctルース

Pink spinel 0.713ct loose stone Sale price¥8,800
Mexican Hyalite Opal 1.215ct Loose (Faceted Cut)

Mexican Hyalite Opal 1.215ct Loose (Faceted Cut) Sale price¥8,800
マダガスカル産グリーンサファイア 0.253ctルース

Madagascar Green Sapphire 0.253ct Loose Sale price¥9,800
マダガスカル産ピンクサファイア 0.243ctルース

Madagascar pink sapphire 0.243ct loose stone Sale price¥8,800
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） 0.556ctルース

[On sale May 30th at 10 PM] Madagascar Andesine-Labradorite (commonly known as Rainbow Moonstone) 0.556ct Loose Stone Sale price¥8,800
オパール 0.878ctルース

Ethiopian Opal 5.7mm/0.878ct Loose (Sphere) Sale price¥6,980
ブラジル産デンドリティックアゲート 0.774ctルース

[Cat cut] Brazilian dendritic agate 0.774ct loose stone Sale price¥6,980
マダガスカル産スフェーン 0.838ctルース

Madagascar sphene 0.838ct loose stone Sale price¥9,800
マダガスカル産スフェーン 0.569ctルース

Madagascar sphene 0.569ct loose stone Sale price¥6,980
アルマンディンガーネット 0.814ctルース

Almandine Garnet 0.814ct Loose Stone Sale price¥7,980
アルマンディンガーネット 1.049ctルース

Almandine Garnet 1.049ct Loose Stone Sale price¥9,800
ベトナム産非加熱シルキーピンクサファイア 0.165ctルース

0.165ct Unheated Silky Pink Sapphire from Vietnam Sale price¥5,980
ロマネサイトインクォーツ 4.825ctルース

Romanesite in Quartz 4.825ct loose stone Sale price¥9,800
クロムトルマリン 0.760ctルース

Tanzanian Chrome Tourmaline 0.760ct Loose Stone Sale price¥5,980
Mozambique Aquamarine 0.216ct Loose Stone

Mozambique Aquamarine 0.216ct Loose Stone Sale price¥6,980
アメリカ産ペリドット 0.339ctルース

American Peridot 0.339ct Loose Stone Sale price¥6,980
American Peridot 0.528ct Loose Stone

American Peridot 0.528ct Loose Stone Sale price¥8,800
アクアマリン 0.327ctルース

Aquamarine 0.327ct loose stone Sale price¥9,800
イエローサファイア 0.287ctルース

Yellow sapphire 0.287ct loose stone Sale price¥8,800
ピンクサファイア 0.202ctルース

Pink sapphire 0.202ct loose stone Sale price¥8,800
ミャンマー産氷翡翠（アイスジェダイト） 0.346ctルース

[On sale May 24th, 10 PM JST] Burmese Ice Jadeite 4.2mm/0.346ct Loose Stone Sale price¥8,800
スペイン産スファレライト 1.127ctルース

Spanish Sphalerite 1.127ct loose stone Sale price¥9,800
スフェーン 0.503ctルース

Sphene 0.503ct loose stone Sale price¥5,980
Sri Lankan Blue Sapphire (Ice Blue) 0.584ct Loose

Sri Lankan Blue Sapphire (Ice Blue) 0.584ct Loose Sale price¥8,800
コーネルピン 0.220ctルース

Tanzanian Kornerupine 0.220ct loose stone Sale price¥6,980
コーネルピン 0.229ctルース

Tanzanian Kornerupine 0.229ct loose stone Sale price¥9,800
コーネルピン 0.303ctルース

Tanzanian Kornerupine 0.303ct loose stone Sale price¥6,980
コーネルピン 0.200ctルース

Tanzanian Kornerupine 0.200ct Loose Stone Sale price¥9,800
ブラジル産フラワークォーツ 4.666ctルース

Brazilian Flower Quartz 4.666ct Loose Stone Sale price¥9,800

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・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.