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Limited Quantity: Colombian Mango Quartz (Small Size - Slim Type) Multiple Purchase Discounts Available

Limited Quantity: Colombian Mango Quartz (Small Size - Slim Type) Multiple Purchase Discounts Available Sale price¥1,180
Limited Quantity: Colombian Mango Quartz (Small - Thick) Multiple Purchase Discounts Available

Limited Quantity: Colombian Mango Quartz (Small - Thick) Multiple Purchase Discounts Available Sale price¥1,280
ライモナイトイントパーズ 3.399ctルース

Brazilian Limonite in Topaz 3.399ct loose stone Sale price¥8,800
エチオピア産オパール 1.433ctルース

Ethiopian Opal 1.433ct Loose Sale price¥3,980
インド産カバンサイト 1.717ctルース

Indian Cavansite 1.717ct loose stone Sale price¥8,800
Limited to 18 stones: YAG (Yttrium Aluminum Garnet) 1 loose stone (Canary Yellow, 4mm) Multiple purchase discounts available

Limited to 18 stones: YAG (Yttrium Aluminum Garnet) 1 loose stone (Canary Yellow, 4mm) Multiple purchase discounts available Sale price¥2,980
Top Quality: Brazilian Alexandrite 1 Stone Loose (2.0mm, Hematita Mine) Multiple Purchase Discounts Available

Top Quality: Brazilian Alexandrite 1 Stone Loose (2.0mm, Hematita Mine) Multiple Purchase Discounts Available Sale price¥9,800
Limited to 7 stones: 1 loose Australian boulder opal (average 25 carats) Multiple purchase discounts available

Limited to 7 stones: 1 loose Australian boulder opal (average 25 carats) Multiple purchase discounts available Sale price¥8,800
《17色》宝石ガチャガチャ💎新作モアッサナイト6.5mm（H&C ハート＆キューピッド）💎《複数購入割引有》 - カラッツSTORE

《17 colors》Gem Gacha💎Synthetic Moissanite 1 stone loose (H&C Heart & Cupid, 6.5mm)💎《Multiple purchase discount available》 Sale price¥5,980
{For beginners} Gem gacha💎 1 loose gemstone (Chrome tourmaline, Mahenge spinel, etc.) cut by Sri Lankan craftsman Sanjay {Multiple purchase discounts available}

{For beginners} Gem gacha💎 1 loose gemstone (Chrome tourmaline, Mahenge spinel, etc.) cut by Sri Lankan craftsman Sanjay {Multiple purchase discounts available} Sale price¥3,980
モスアゲート 0.755ctルース

Indian Moss Agate 0.755ct Loose Stone Sale price¥7,980
レピドクロサイトインクォーツ 0.484ctルース

Brazilian Lepidocrocite in Quartz 0.484ct Loose Stone Sale price¥9,800
トルマリン 0.541ctルース

Tourmaline 0.541ct loose stone Sale price¥8,800
バイカラートルマリン 0.326ctルース

Brazilian bicolor tourmaline 0.326ct loose stone Sale price¥8,800
ピンクトルマリン 0.538ctルース

Brazilian Pink Tourmaline 0.538ct Loose Stone Sale price¥8,800
ブラジル産グリーントルマリン 0.350ctルース

Brazilian Green Tourmaline 0.350ct Loose Sale price¥9,800
Limited to 17 stones, 1 loose Sugilite stone from South Africa, multiple purchase discounts available

Limited to 17 stones, 1 loose Sugilite stone from South Africa, multiple purchase discounts available Sale price¥2,980
Limited to 8 stones: Ethiopian black opal (heat-treated, identification instructions included, average 2ct, approx. 11x8mm) 1 loose stone (multiple purchase discounts available)

Limited to 8 stones: Ethiopian black opal (heat-treated, identification instructions included, average 2ct, approx. 11x8mm) 1 loose stone (multiple purchase discounts available) Sale price¥8,800
ブラジル産ライモナイトイントパーズ 5.709ctルース

Brazilian Limonite in Topaz 5.709ct loose stone Sale price¥9,800
ミャンマー産トラピッチェルビー 0.125ctルース

Myanmar Trapiche Ruby 2.6mm/0.125ct Loose Stone Sale price¥5,980
ファイアオパール 0.333ctルース

Mexican Fire Opal 4.9mm/0.333ct Loose Sale price¥8,800
Limited to 6 sets: Apatite 3-stone set (yellow, green, and blue) Multiple purchase discounts available

Limited to 6 sets: Apatite 3-stone set (yellow, green, and blue) Multiple purchase discounts available Sale price¥5,980
ブラジル産ポンポンクォーツ（ラジエーテッド クリスタルインクォーツ） 3.913ctルース

Brazilian Pompon Quartz (Radiated Crystal in Quartz) 3.913ct Loose Stone Sale price¥9,800
ブラジル産バイカラーユークレース 0.286ctルース

Brazilian bicolor euclase 0.286ct loose stone Sale price¥8,800
ウンバサファイア（タンザニア産） 0.182ctルース

Umba Sapphire (Tanzania) 0.182ct loose stone Sale price¥7,980
Limited to 12 stones Tanzanian Milky Opal Cat's Eye (7.5 x 5.5 mm) Multiple purchase discounts available

Limited to 12 stones Tanzanian Milky Opal Cat's Eye (7.5 x 5.5 mm) Multiple purchase discounts available Sale price¥3,980
[Reception ends on 11/30]《Shipped from mid-January to late January》 “Bakuten!!” x KARATZ collaboration goods / Onaga T-shirt (black/white)

[Reception ends on 11/30]《Shipped from mid-January to late January》 “Bakuten!!” x KARATZ collaboration goods / Onaga T-shirt (black/white) Sale price¥3,980
Limited to 12 stones: August birthstone sardonyx (16 x 12 mm) 1 loose stone. Discounts available for multiple purchases.

Limited to 12 stones: August birthstone sardonyx (16 x 12 mm) 1 loose stone. Discounts available for multiple purchases. Sale price¥2,980
[Reception ends on 11/30]《Shipped from mid-January to late January》 “Bakuten!!” x KARATZ collaboration goods / Onaga T-shirt (black/white)

[Reception ends on 11/30]《Shipped from mid-January to late January》 “Bakuten!!” x KARATZ collaboration goods / Onaga T-shirt (black/white) Sale price¥3,980
Limited to 12 stones, Pakistani oil in quartz, moving bubbles, 1 loose stone, multiple purchase discounts available

Limited to 12 stones, Pakistani oil in quartz, moving bubbles, 1 loose stone, multiple purchase discounts available Sale price¥4,980
Limited to 15 stones! Green Oregon Sunstone rough stone from the United States 💎 Average 1.5ct [Multiple purchase discounts available]

Limited to 15 stones! Green Oregon Sunstone rough stone from the United States 💎 Average 1.5ct [Multiple purchase discounts available] Sale price¥5,980
[Limited to 24 stones] Oregon Sunstone from America with beautiful Schiller (Oval cut, 5 x 7mm) [Multiple purchase discount available]

[Limited to 24 stones] Oregon Sunstone from America with beautiful Schiller (Oval cut, 5 x 7mm) [Multiple purchase discount available] Sale price¥6,980
奈良県天川村産レインボーガーネット（アンドラダイトガーネット） 1.099ctルース

Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture 1.099ct loose stone Sale price¥8,800
Limited to 18 stones: Myanmar spinel (3.5mm, pentagonal cut) 1 loose stone. Discounts available for multiple purchases.

Limited to 18 stones: Myanmar spinel (3.5mm, pentagonal cut) 1 loose stone. Discounts available for multiple purchases. Sale price¥2,980
Limited to 5 stones: 1 synthetic moissanite loose stone (Sanjay cut hexagonal, 6mm) Multiple purchase discounts available

Limited to 5 stones: 1 synthetic moissanite loose stone (Sanjay cut hexagonal, 6mm) Multiple purchase discounts available Sale price¥8,800
Limited to 6 stones: Brazilian Medusa Quartz (Paraiba Quartz) cat cut 1 stone loose (6mm) Multiple purchase discount available

Limited to 6 stones: Brazilian Medusa Quartz (Paraiba Quartz) cat cut 1 stone loose (6mm) Multiple purchase discount available Sale price¥7,980
奈良県天川村産レインボーガーネット（アンドラダイトガーネット） 0.843ctルース

Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture 5.1mm/0.843ct Loose Stone Sale price¥6,980
中国・ヤオガンシャン産フローライト 72.518ct原石

Fluorite rough stone from Yaogangshan, China, 72.518ct Sale price¥9,800
[Available from 10 PM on August 11th] Gemstone Encyclopedia Playing Cards + 4 Gemstones in a Gemstone Lucky Bag (Valued at 10,000 yen)

[Available from 10 PM on August 11th] Gemstone Encyclopedia Playing Cards + 4 Gemstones in a Gemstone Lucky Bag (Valued at 10,000 yen) Sale price¥6,000
January birthstone rhodolite garnet rough stone and loose stone set of 2 (from Zambia) {Multiple purchase discounts available} {For beginners}

January birthstone rhodolite garnet rough stone and loose stone set of 2 (from Zambia) {Multiple purchase discounts available} {For beginners} Sale price¥2,980
April birthstone Morganite rough stone and loose stone set of 2 (from Nigeria) {Multiple purchase discounts available} {For beginners}

April birthstone Morganite rough stone and loose stone set of 2 (from Nigeria) {Multiple purchase discounts available} {For beginners} Sale price¥3,980
March birthstone, aquamarine rough stone and loose stone set of 2 (from Nigeria) {Multiple purchase discounts available} {For beginners}

March birthstone, aquamarine rough stone and loose stone set of 2 (from Nigeria) {Multiple purchase discounts available} {For beginners} Sale price¥3,980
November birthstone citrine rough and loose stone set of 2 (Madeira citrine, from Brazil) {Multiple purchase discounts available} {For beginners}

November birthstone citrine rough and loose stone set of 2 (Madeira citrine, from Brazil) {Multiple purchase discounts available} {For beginners} Sale price¥3,980
Limited to 6 stones: 1 synthetic moissanite loose stone (hexagonal cut, 5mm) Multiple purchase discounts available

Limited to 6 stones: 1 synthetic moissanite loose stone (hexagonal cut, 5mm) Multiple purchase discounts available Sale price¥6,980
Limited to 8 stones: Swiss blue topaz (4mm, rose cut) 1 loose stone. Discounts available for multiple purchases.

Limited to 8 stones: Swiss blue topaz (4mm, rose cut) 1 loose stone. Discounts available for multiple purchases. Sale price¥3,980
メキシコ産ファイアオパール 0.576ctルース

Mexican Fire Opal 0.576ct Loose (Faceted Cut) Sale price¥9,800
メキシコ産ファイアオパール 0.212ctルース

Mexican Fire Opal 0.212ct Loose (Faceted Cut) Sale price¥8,800
日本式双晶水晶 3.472ct原石

Japanese style twin crystal 3.472ct raw 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.