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誕生石一覧

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【11/3 22時販売】《29石限定》非加熱ブラジル産パライバトルマリン3石含むパライバトルマリン（バターリャ鉱山）ガチャ1石ルース💎《複数購入割引有》

【11/3 22時販売】《29石限定》非加熱ブラジル産パライバトルマリン3石含むパライバトルマリン（バターリャ鉱山）ガチャ1石ルース💎《複数購入割引有》 Sale price¥6,980
[On sale 10/31 at 10 PM] Limited to 10 stones: 0.20ct Yellow Diamond Loose Stone, Including Fancy Colors [Multiple purchase discounts available]

[On sale 10/31 at 10 PM] Limited to 10 stones: 0.20ct Yellow Diamond Loose Stone, Including Fancy Colors [Multiple purchase discounts available] Sale price¥2,980
[Lottery Sales Page] Adult Sebon Star 3rd Edition Charmy Premium Model <Royal Blue Sapphire> (Sales Price: 1,580,000 yen)

[Lottery Sales Page] Adult Sebon Star 3rd Edition Charmy Premium Model <Royal Blue Sapphire> (Sales Price: 1,580,000 yen) Sale price¥0
[On sale 10/19 at 10 PM] {Limited to 10 stones} Paraiba Tourmaline Gacha 💎 Paraiba Tourmaline or Paraiba Tourmaline in Quartz (1 loose stone) {Multiple purchase discounts available}

[On sale 10/19 at 10 PM] {Limited to 10 stones} Paraiba Tourmaline Gacha 💎 Paraiba Tourmaline or Paraiba Tourmaline in Quartz (1 loose stone) {Multiple purchase discounts available} Sale price¥6,980
[On sale from 10/25 at 10 PM] Limited to 12 stones: Mexican Opal (Custom Faceted Cut) Loose Stone [Multiple purchase discounts available]

[On sale from 10/25 at 10 PM] Limited to 12 stones: Mexican Opal (Custom Faceted Cut) Loose Stone [Multiple purchase discounts available] Sale price¥3,980
[On Sale 10/12 at 10 PM] [Limited to 15 stones] One loose, unheated silky pink sapphire from Vietnam (2.5mm, round cut) [Multiple purchase discounts available]

[On Sale 10/12 at 10 PM] [Limited to 15 stones] One loose, unheated silky pink sapphire from Vietnam (2.5mm, round cut) [Multiple purchase discounts available] Sale price¥3,980
[On Sale at 10 PM on October 12th] Limited to 14 stones: One loose hot pink sapphire from Mozambique (pear-shaped, approximately 4 x 3 mm) [Multiple purchase discounts available]

[On Sale at 10 PM on October 12th] Limited to 14 stones: One loose hot pink sapphire from Mozambique (pear-shaped, approximately 4 x 3 mm) [Multiple purchase discounts available] Sale price¥4,980
【11/2 22時販売開始】《限定10石》バイカラーピンクタンザナイト原石含むタンザナイト原石ガチャ（平均4.2ct）《複数購入割引有》　

【11/2 22時販売開始】《限定10石》バイカラーピンクタンザナイト原石含むタンザナイト原石ガチャ（平均4.2ct）《複数購入割引有》　 Sale price¥6,980
[On sale from 10/22 at 10 PM] Limited to 14 stones: Lab-grown diamond (cabochon cut, approximately 2.3mm) - 1 loose diamond [Multiple purchase discounts available]

[On sale from 10/22 at 10 PM] Limited to 14 stones: Lab-grown diamond (cabochon cut, approximately 2.3mm) - 1 loose diamond [Multiple purchase discounts available] Sale price¥4,980
[On sale 10/22 at 10 PM] Limited to 10 stones: London Blue Diamond Gacha Loose Stone (including 3.6mm, VS-SI grade equivalent, treated) [Multiple purchase discounts available]

[On sale 10/22 at 10 PM] Limited to 10 stones: London Blue Diamond Gacha Loose Stone (including 3.6mm, VS-SI grade equivalent, treated) [Multiple purchase discounts available] Sale price¥2,980
[On Sale at 10 PM on October 12th] [Limited to 7 stones] One loose, oil-free emerald from Russia (1.5-1.6mm, step cut) [Multiple purchase discounts available]

[On Sale at 10 PM on October 12th] [Limited to 7 stones] One loose, oil-free emerald from Russia (1.5-1.6mm, step cut) [Multiple purchase discounts available] Sale price¥5,980
coming soon Brazilian bicolor tourmaline 1.764ct loose

Brazilian bicolor tourmaline 1.764ct loose Sale price¥32,800
coming soon Brazilian bicolor tourmaline 1.565ct loose

Brazilian bicolor tourmaline 1.565ct loose Sale price¥19,800
coming soon ブラジル産ブルートルマリン 0.376ctルース

Brazilian blue tourmaline 0.376ct loose Sale price¥7,980
【11/3 22時販売】《14石限定》ロシア産ノンオイルエメラルド1石ルース(2.1ｍｍ,スクエアカット)《複数購入割引有》

【11/3 22時販売】《14石限定》ロシア産ノンオイルエメラルド1石ルース(2.1ｍｍ,スクエアカット)《複数購入割引有》 Sale price¥5,980
ミャンマー産バイカラースターサファイア 0.640ctルース

【11/3 22時販売】ミャンマー産バイカラースターサファイア 0.640ctルース Sale price¥45,800
スリランカ産ブルーサファイア 0.555ctルース

Sri Lankan blue sapphire 0.555ct loose stone Sale price¥29,800
イリュージョンバイカラートルマリン 3.202ctルース

Illusion Bicolor Tourmaline 3.202ct Loose Stone Sale price¥69,800
モザンビーク産ルベライト 0.814ctルース

Mozambique rubellite 0.814ct loose stone Sale price¥39,800
アフガニスタン産グリーントルマリン 7.8mm/1.738ctルース

Brazilian green tourmaline 1.738ct loose stone Sale price¥59,800
スリランカ産ブルーサファイア 0.187ctルース

Sri Lankan blue sapphire 0.187ct loose stone Sale price¥29,800
アメリカ産ペリドット 0.635ctルース

American Peridot 0.635ct Loose Stone Sale price¥12,800
アメリカ産ペリドット 0.283ctルース

American Peridot 0.283ct Loose Stone Sale price¥8,800
パキスタン産ペリドット 5.0mm/0.517ctルース

[12559858] Pakistani Peridot 0.517ct Loose Stone Sale price¥9,800
パキスタン産ペリドット 5.2mm/0.562ctルース

[12559857] Pakistani Peridot 0.562ct Loose Stone Sale price¥9,800
マダガスカル産バイカラーサファイア 0.266ctルース

Madagascar Bicolor Sapphire 0.266ct Loose Sale price¥16,800
オーストラリア産ボルダーオパール 3.122ctルース

[12559449] Australian Boulder Opal 3.122ct Loose Sale price¥29,800
メキシコ産オパール 0.233ctルース

[12559448] Mexican Opal 0.233ct Loose Sale price¥12,800
コロンビア産エメラルド 0.121ctルース

Colombian emerald 0.121ct loose stone Sale price¥12,800
メキシコ産ハイアライトオパール 1.420ctルース

【11/2 22時販売】メキシコ産ハイアライトオパール 1.420ctルース Sale price¥18,800
メキシコ産ハイアライトオパール 0.743ctルース

[11/2 22:00] Mexican Hyalite Opal 0.743ct Loose Sale price¥12,800
ブラジル産ピンクトルマリン 2.765ctルース

[11/2 22:00] Brazilian Pink Tourmaline 2.765ct Loose Stone Sale price¥69,800
ブラジル産ミントカラーエメラルド 0.491ctルース

[11/2 22:00] Brazilian mint-colored emerald 0.491ct loose stone Sale price¥15,800
マダガスカル産バイカラーサファイア 0.318ctルース

[On Sale 11/1 at 10pm] Madagascar Bicolor Sapphire 0.318ct Loose Sale price¥25,800
Indigolite Tourmaline 0.649ct Loose Stone

Indigolite Tourmaline 0.649ct Loose Stone Sale price¥39,800
Indigolite Tourmaline 0.634ct Loose Stone

Indigolite Tourmaline 0.634ct Loose Stone Sale price¥39,800
[12559942] Tourmaline 0.486ct loose stone

[12559942] Tourmaline 0.486ct loose stone Sale price¥29,800
[12559941] Tourmaline 0.314ct loose stone

[12559941] Tourmaline 0.314ct loose stone Sale price¥22,800
Unheated ruby ​​0.430ct loose

Unheated ruby ​​0.430ct loose Sale price¥98,000
[12559637] Colombian emerald 0.176ct loose stone

[12559637] Colombian emerald 0.176ct loose stone Sale price¥59,800
[12559636] Colombian emerald 0.126ct loose stone

[12559636] Colombian emerald 0.126ct loose stone Sale price¥49,800
[12558255] Brazilian Pink Tourmaline 0.577ct Loose Stone

[12558255] Brazilian Pink Tourmaline 0.577ct Loose Stone Sale price¥18,800
[12556633] Peridot 1.176ct loose stone

[12556633] Peridot 1.176ct loose stone Sale price¥9,800
Brown diamond 0.132ct loose

Brown diamond 0.132ct loose Sale price¥12,800
[On sale November 1st at 10 PM] [Limited to 12 stones] Brazilian Indigolite Tourmaline Gacha Loose Stone (4x3mm, Oval Cut) [Multiple purchase discounts available]

[On sale November 1st at 10 PM] [Limited to 12 stones] Brazilian Indigolite Tourmaline Gacha Loose Stone (4x3mm, Oval Cut) [Multiple purchase discounts available] Sale price¥4,980
[On sale from 10/25 at 10 PM] Limited to 11 stones: Sakura-shaped Contralus Opal and a specially cut Opal Gacha with one loose stone [Multiple purchase discounts available]

[On sale from 10/25 at 10 PM] Limited to 11 stones: Sakura-shaped Contralus Opal and a specially cut Opal Gacha with one loose stone [Multiple purchase discounts available] Sale price¥3,980
ブラジル産ピンクトルマリン 1.515ctルース

[11/1 22:00 Sale] Brazilian Pink Tourmaline 1.515ct Loose Stone Sale price¥98,000
タンザニア産バイカラーサファイア 0.486ctルース

[On Sale at 10 PM on October 31st] Tanzanian Bicolor Sapphire 0.486ct Loose Sale price¥12,800

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.