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Sold out Limited Edition of 10 Blue Gemstones! 💎 0.142ct Brazilian Paraiba Tourmaline, Euclase from Zimbabwe, 1.17ct Cobalt Spinel (Certificate of Authenticity: Color Shift), Benitoite, and More! Discounts Available for Multiple Purchases!

Limited Edition of 10 Blue Gemstones! 💎 0.142ct Brazilian Paraiba Tourmaline, Euclase from Zimbabwe, 1.17ct Cobalt Spinel (Certificate of Authenticity: Color Shift), Benitoite, and More! Discounts Available for Multiple Purchases!
Sold out Limited to 7 stones: 1 loose Indian iolite sunstone (custom cut by Sanjay) Multiple purchase discounts available

Limited to 7 stones: 1 loose Indian iolite sunstone (custom cut by Sanjay) Multiple purchase discounts available
Sold out Limited to 10 stones: Blue Spinel Gacha, Cobalt Spinel (including color-shifting type), 2 stones with Japanese and German appraisal certificates, and a bonus synthetic cobalt spinel. Discounts available for multiple purchases.

Limited to 10 stones: Blue Spinel Gacha, Cobalt Spinel (including color-shifting type), 2 stones with Japanese and German appraisal certificates, and a bonus synthetic cobalt spinel. Discounts available for multiple purchases.
Sold out Limited to 9 stones: 1 Afghan Lazurite in Sodalite loose stone (faceted cut, average 0.45ct) Multiple purchase discounts available

Limited to 9 stones: 1 Afghan Lazurite in Sodalite loose stone (faceted cut, average 0.45ct) Multiple purchase discounts available
Sold out [Limited to 7 stones] Oregon Sunstone from the United States (cabochon cut, average 1.5ct) [Multiple purchase discount available]

[Limited to 7 stones] Oregon Sunstone from the United States (cabochon cut, average 1.5ct) [Multiple purchase discount available]
Sold out Limited to 16 stones: 1 Montana sapphire loose stone (including teal blue and bicolor) Multiple purchase discounts available

Limited to 16 stones: 1 Montana sapphire loose stone (including teal blue and bicolor) Multiple purchase discounts available
Sold out 【猫カット】シトリン（8mm） - カラッツSTORE

[Cat cut] Citrine (8mm)

Sold out Limited to 13 stones! Bicolor Gacha 💎 Bicolor Sphene, usually priced at ¥79,800, Party-color Paraiba Tourmaline, usually priced at ¥39,800, and more. (Multiple Purchase Discount Available)

Limited to 13 stones! Bicolor Gacha 💎 Bicolor Sphene, usually priced at ¥79,800, Party-color Paraiba Tourmaline, usually priced at ¥39,800, and more. (Multiple Purchase Discount Available)
Sold out Limited to 11 stones: Bicolor Gacha (including Zimbabwean bicolor euclase, bicolor sapphire, and bicolor zoisite) (Multiple purchase discounts available)

Limited to 11 stones: Bicolor Gacha (including Zimbabwean bicolor euclase, bicolor sapphire, and bicolor zoisite) (Multiple purchase discounts available)
Sold out Limited Edition of 10 Bicolor Gacha! 💎 Includes two Zimbabwean euclase stones (average 0.088ct), a 1.03ct bicolor sapphire, a bicolor chrysoberyl, and more. Discounts available for multiple purchases.

Limited Edition of 10 Bicolor Gacha! 💎 Includes two Zimbabwean euclase stones (average 0.088ct), a 1.03ct bicolor sapphire, a bicolor chrysoberyl, and more. Discounts available for multiple purchases.
Sold out Gemstone Gacha💎 1 of the Three Great Gemstones Gacha + 2 Loose Pink Sapphires (Multiple Purchase Discounts Available)

Gemstone Gacha💎 1 of the Three Great Gemstones Gacha + 2 Loose Pink Sapphires (Multiple Purchase Discounts Available)
Sold out Limited to 8 stones: 1 Australian rainbow lattice sunstone loose stone (average 0.60ct) Multiple purchase discounts available

Limited to 8 stones: 1 Australian rainbow lattice sunstone loose stone (average 0.60ct) Multiple purchase discounts available
Sold out Oregon Sunstone from America with beautiful Schiller (Oval Cut, 5×7mm) {Multiple purchase discounts available}

Oregon Sunstone from America with beautiful Schiller (Oval Cut, 5×7mm) {Multiple purchase discounts available}
Sold out スフェーン 色違い2石 - KARATZ STORE｜カラッツSTORE

Sphene 2 stones in different colors

Sold out クリノゾイサイト 1石 （ピクセルカット） - KARATZ STORE｜カラッツSTORE

Clinozoisite 1 stone (pixel cut)

Sold out [Limited to 6 Stones] Vietnamese Silky Pink Sapphire (Sanje Cut, Round, 3.0-3.3mm) Gacha [Bulk Purchase Discount Available]

[Limited to 6 Stones] Vietnamese Silky Pink Sapphire (Sanje Cut, Round, 3.0-3.3mm) Gacha [Bulk Purchase Discount Available]

Sold out Limited to 10 stones! Zimbabwean Bicolor Euclase, Bicolor Sapphire, and More! Bicolor Loose Stones! 💎 Single Loose Stones Available. Discounts Available for Multiple Purchases.

Limited to 10 stones! Zimbabwean Bicolor Euclase, Bicolor Sapphire, and More! Bicolor Loose Stones! 💎 Single Loose Stones Available. Discounts Available for Multiple Purchases.
Sold out Color Change Gacha💎 Burmese Color Change Zircon, Color Shift Sapphire, Color Shift Cobalt Spinel, and More (Multiple Purchase Discounts Available)

Color Change Gacha💎 Burmese Color Change Zircon, Color Shift Sapphire, Color Shift Cobalt Spinel, and More (Multiple Purchase Discounts Available)
Sold out Limited to 6 stones: 1 loose sphene from Zimbabwe (multiple purchase discounts available)

Limited to 6 stones: 1 loose sphene from Zimbabwe (multiple purchase discounts available)
Sold out Limited to 8 stones: 1 Sri Lankan star sapphire loose stone (5mm, round cabochon cut) Multiple purchase discounts available

Limited to 8 stones: 1 Sri Lankan star sapphire loose stone (5mm, round cabochon cut) Multiple purchase discounts available
Sold out Limited to 5 stones: 1 green zircon from Sri Lanka. Discounts available for multiple purchases.

Limited to 5 stones: 1 green zircon from Sri Lanka. Discounts available for multiple purchases.
Sold out Rose-cut beryllium-treated sapphire, 1 loose stone (4mm, September birthstone) {Multiple purchase discounts available}

Rose-cut beryllium-treated sapphire, 1 loose stone (4mm, September birthstone) {Multiple purchase discounts available}
Sold out Limited to 7 stones: 1 loose Sri Lankan spinel (lozenge cut) stone. Discounts available for multiple purchases.

Limited to 7 stones: 1 loose Sri Lankan spinel (lozenge cut) stone. Discounts available for multiple purchases.
Sold out Limited to 11 stones! Includes Koshu Precious Stone Kiriko plusthree "Irodori," normally priced at 74,800 yen. Sphene Gacha. Multiple purchase discounts available.

Limited to 11 stones! Includes Koshu Precious Stone Kiriko plusthree "Irodori," normally priced at 74,800 yen. Sphene Gacha. Multiple purchase discounts available.
Sold out 《Limited 7 Stones》Sri Lankan Green Zircon (Special Cut, including Silky Type)《Multi-purchase Discount Available》

《Limited 7 Stones》Sri Lankan Green Zircon (Special Cut, including Silky Type)《Multi-purchase Discount Available》
Sold out Limited to 7 stones: Sri Lankan star sapphire (1 loose stone) Multiple purchase discounts available

Limited to 7 stones: Sri Lankan star sapphire (1 loose stone) Multiple purchase discounts available
Sold out Limited to 14 stones: One loose Mozambique hot pink sapphire (pear-shaped, approximately 4 x 3 mm) [Multiple purchase discounts available]

Limited to 14 stones: One loose Mozambique hot pink sapphire (pear-shaped, approximately 4 x 3 mm) [Multiple purchase discounts available]

Sold out Limited to 5 stones: 1 Indian Iolite Sunstone (impregnated) loose stone (average 6.6 carats, cabochon cut) Multiple purchase discounts available

Limited to 5 stones: 1 Indian Iolite Sunstone (impregnated) loose stone (average 6.6 carats, cabochon cut) Multiple purchase discounts available
Sold out Limited to 9 stones [Mr. Sanjay] Oil in quartz, spinel, yellow opal 1 loose stone (damaged) [Multiple purchase discount available]

Limited to 9 stones [Mr. Sanjay] Oil in quartz, spinel, yellow opal 1 loose stone (damaged) [Multiple purchase discount available]

Sold out クリノゾイサイト 1石 - KARATZ STORE｜カラッツSTORE

clinozoisite 1 stone

Sold out マダガスカル産スフェーン 0.935ctルース

[Dandelion Cut] Madagascar Sphene 6.0mm/0.935ct Loose Stone

Sold out Limited to 13 stones: 1 red spinel rough stone from Myanmar. Discounts available for multiple purchases.

Limited to 13 stones: 1 red spinel rough stone from Myanmar. Discounts available for multiple purchases.
Sold out Limited to 14 stones: 1 Santa Maria aquamarine (March birthstone, average 0.39ct) Multiple purchase discounts available

Limited to 14 stones: 1 Santa Maria aquamarine (March birthstone, average 0.39ct) Multiple purchase discounts available
Sold out Limited to 4 sets: Sri Lankan sapphire (2.5mm, round cut) and Sri Lankan glass body set of 2 stones. Discounts available for multiple purchases.

Limited to 4 sets: Sri Lankan sapphire (2.5mm, round cut) and Sri Lankan glass body set of 2 stones. Discounts available for multiple purchases.
Sold out 《Limited to 8 stones》 [Mr. Sanjay] Hackmanite or Sodalite 1 stone loose (maximum 3.63 ct)《Multiple purchase discount available》

《Limited to 8 stones》 [Mr. Sanjay] Hackmanite or Sodalite 1 stone loose (maximum 3.63 ct)《Multiple purchase discount available》
Sold out 安部祐一朗氏グッズセット【マグカップ＆コンパクトミラー＆オレゴンサンストーンの宝石】

Yuichiro Abe goods set [General purpose case & notebook & postcard autographed & Oregon sunstone jewelry]

Sold out 《Limited to 2 Stones》Greenland Pink Sapphire Loose Stone (5.0mm, Heart-shaped, with Certificate) 《Multiple Purchase Discount Available》

《Limited to 2 Stones》Greenland Pink Sapphire Loose Stone (5.0mm, Heart-shaped, with Certificate) 《Multiple Purchase Discount Available》

Sold out Limited Edition of 7 Montana Sapphires (Rock Creek Mine) Gacha (Pear Shape, Approx. 5 x 3mm) [Multiple Purchase Discounts Available]

Limited Edition of 7 Montana Sapphires (Rock Creek Mine) Gacha (Pear Shape, Approx. 5 x 3mm) [Multiple Purchase Discounts Available]
Sold out Limited to 3 stones: Myanmar gray spinel and platinum spinel (4.0mm, round cut) loose stone (multiple purchase discounts available)

Limited to 3 stones: Myanmar gray spinel and platinum spinel (4.0mm, round cut) loose stone (multiple purchase discounts available)

Sold out Limited to 9 stones: 1 Spinel Gacha (August birthstone) including 1 bicolor spinel (0.93 ct) (Multiple purchase discounts available)

Limited to 9 stones: 1 Spinel Gacha (August birthstone) including 1 bicolor spinel (0.93 ct) (Multiple purchase discounts available)

Sold out サファリン 0.320ctルース

Sri Lankan saffron 0.320ct loose stone with certificate of authenticity
Sold out Limited to 6 stones: 1 loose sphene stone from Madagascar (round cut, 4mm) Multiple purchase discounts available

Limited to 6 stones: 1 loose sphene stone from Madagascar (round cut, 4mm) Multiple purchase discounts available
Sold out 安部祐一朗氏グッズセット【キャンバス＆アクルルキーホルダー＆オレゴンサンストーンの宝石】

Yuichiro Abe goods set [canvas & acrylic key chain & Oregon sunstone jewelry]

Sold out 【ダンデライオンカット】シトリン 5.58ctルース（ライトカラー） - カラッツSTORE

[Dandelion cut] Citrine 5.58ct loose (light color)

Sold out 【さくらインカット】オレゴンサンストーン 1.55ctルース - カラッツSTORE

[Sakura Incut] Oregon Sunstone 1.55ct Loose

Sold out K18 ピンクサファイア 0.452ct ペンダントトップ（ネックレストップ）

【On Sale June 14, 10 PM】[ColorFleuri] K18 Pink Sapphire 0.452ct Pendant Top (Necklace Top) with Certificate of Authenticity
Sold out ミャンマー産レッドスピネル 0.266ctルース

[Sales from 10 PM on June 14th] Myanmar Red Spinel 0.266 ct Loose Stone
Sold out マダガスカル産バイカラーサファイア 0.741ctルース

[On sale June 14th at 10 PM] Madagascar Bi-Color Sapphire 5.3mm/0.741ct 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.