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Sold out Brazilian Dendritic Quartz Kitten Cut Loose Stone (For Beginners) (5mm) (Multiple Purchase Discounts Available)

Brazilian Dendritic Quartz Kitten Cut Loose Stone (For Beginners) (5mm) (Multiple Purchase Discounts Available)
Sold out [Limited to 7 stones] Gem gacha💎 Australian opal or Mexican cantera opal 1 loose stone (with defects) [Multiple purchase discount available]

[Limited to 7 stones] Gem gacha💎 Australian opal or Mexican cantera opal 1 loose stone (with defects) [Multiple purchase discount available]
Sold out Tanzanian bicolor mint garnet 1 stone loose (UV type) {Multiple purchase discount available}

Tanzanian bicolor mint garnet 1 stone loose (UV type) {Multiple purchase discount available}

Sold out Limited to 7 stones: 1 loose kyanite stone from Nepal (royal blue color, 4mm, round cut) Multiple purchase discounts available

Limited to 7 stones: 1 loose kyanite stone from Nepal (royal blue color, 4mm, round cut) Multiple purchase discounts available
Sold out [Sales start August 8th, 10 PM] Limited to 10 Stones! Color Change Gem Gacha Featuring Color Change Zircon and Alexandrite (Multi-purchase discount available)

[Sales start August 8th, 10 PM] Limited to 10 Stones! Color Change Gem Gacha Featuring Color Change Zircon and Alexandrite (Multi-purchase discount available)
Sold out 《Limited to 10 stones》Color change gemstone gacha: color change zircon, alexandrite, color change garnet, etc. 《Multi-purchase discount available》

《Limited to 10 stones》Color change gemstone gacha: color change zircon, alexandrite, color change garnet, etc. 《Multi-purchase discount available》
Sold out 《Limited to 7 stones》American Ant Hill Garnet (round cut, approx. 3mm) 《Multiple purchase discount available》

《Limited to 7 stones》American Ant Hill Garnet (round cut, approx. 3mm) 《Multiple purchase discount available》
Sold out Zambian Canary Yellow Tourmaline (4.0mm/Round Cut) Loose Stone - Limited 5 Pieces (Multiple Purchase Discount Available)

Zambian Canary Yellow Tourmaline (4.0mm/Round Cut) Loose Stone - Limited 5 Pieces (Multiple Purchase Discount Available)
Sold out Limited to 6 stones: Brazilian dendritic quartz (new to Tucson, average 2.5 carats) [Multiple purchase discounts available]

Limited to 6 stones: Brazilian dendritic quartz (new to Tucson, average 2.5 carats) [Multiple purchase discounts available]
Sold out Rainbow Garnet (Rose Cut, 3.0-5.5mm) from Tenkawa Village, Nara Prefecture, Single Loose Stone (Multiple Purchase Discounts Available)

Rainbow Garnet (Rose Cut, 3.0-5.5mm) from Tenkawa Village, Nara Prefecture, Single Loose Stone (Multiple Purchase Discounts Available)
Sold out One loose demantoid garnet from Russia (oval cut, approximately 3 x 2 mm) (multiple purchase discounts available)

One loose demantoid garnet from Russia (oval cut, approximately 3 x 2 mm) (multiple purchase discounts available)

Sold out Limited to 4 stones: 1 bicolor grossular garnet from Tanzania (multiple purchase discounts available)

Limited to 4 stones: 1 bicolor grossular garnet from Tanzania (multiple purchase discounts available)

Sold out 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
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 《Limited to 7 stones》1 stone tourmaline in quartz from Sri Lanka loose (8-9mm, octagonal cut)《Multiple purchase discount available》

《Limited to 7 stones》1 stone tourmaline in quartz from Sri Lanka loose (8-9mm, octagonal cut)《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 Garnet Gacha Loose Stone with Two Koshu Cut Precious Stones (Multiple Purchase Discounts Available)

Garnet Gacha Loose Stone with Two Koshu Cut Precious Stones (Multiple Purchase Discounts Available)
Sold out Limited to 4 stones: Sri Lankan Rhodolite Garnet (4mm, Round Cut) - 1 loose stone (Multiple purchase discounts available)

Limited to 4 stones: Sri Lankan Rhodolite Garnet (4mm, Round Cut) - 1 loose stone (Multiple purchase discounts available)
Sold out Kyanite from Nepal, 1 loose stone (indigo blue color, 4 x 6 mm, emerald cut) {Multiple purchase discount available}

Kyanite from Nepal, 1 loose stone (indigo blue color, 4 x 6 mm, emerald cut) {Multiple purchase discount available}
Sold out 【さくらインカット】ティンカーベルクォーツ6.480ctルース - カラッツSTORE

[Sakura Incut] Tinkerbell Quartz 6.480ct Loose (Pink Fire Quartz)

Sold out Lavender Quartz 1 stone (Scorollite) 3ct 1 stone《Multiple purchase discount available》

Lavender Quartz 1 stone (Scorollite) 3ct 1 stone《Multiple purchase discount available》

Sold out GGG（ガドリウムガリウムガーネット） 0.658ctルース

GGG (Gadolinium Gallium Garnet) 4.0mm/0.658ct Loose Stone
Sold out 《Limited to 5 stones》Carving Gacha 💎 Green Quartz, Lemon Quartz, Blue Topaz 《Multiple Purchase Discount Available》

《Limited to 5 stones》Carving Gacha 💎 Green Quartz, Lemon Quartz, Blue Topaz 《Multiple Purchase Discount Available》
Sold out メキシコ産カンテラオパール 6.112ctルース

Mexican Cantera Opal 6.112ct Loose
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） 0.352ctルース

Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.352ct Loose Stone
Sold out 【12533788掲載】ティンカーベルクォーツ（ピンクファイヤークォーツ） 4.764ctルース

Tinker Bell Quartz (Pink Fire Quartz) 4.764ct loose

Sold out ティンカーベルクォーツ（ピンクファイヤークォーツ） 3.968ctルース

Tinker Bell Quartz (Pink Fire Quartz) 3.968ct loose

Sold out 【カメリアカット】レモンクォーツ8mmルース 直筆サイン付&ワッペン付 - カラッツSTORE

[Camellia cut] Lemon quartz 8mm loose with autograph and emblem

Sold out K18レピドクロサイトインクォーツ2.37ct・ダイヤモンドリング - カラッツSTORE

[Colorful] K18 lepidocrocite in quartz 2.37ct diamond ring

Sold out 【12525545掲載】アルマンディンガーネットキャッツアイ 1.820ctルース

Almandine garnet cat's eye 1.820ct loose

Sold out 【8/31 22時販売】マダガスカル産グランディディエライト 2.8mm/0.113ctルース 鑑別書

【8/31 22時販売】マダガスカル産グランディディエライト 2.8mm/0.113ctルース 鑑別書
Sold out コッパールチルクォーツ 1.610ctルース

Brazilian copper rutilated quartz 1.610ct loose stone
Sold out タンザニア産ヴァイオレットサファイア 0.523ctルース

[Sales Start: August 27, 10 PM JST] 0.523ct Tanzanian Violet Sapphire Loose Gemstone (Color Change Sapphire) with Certification
Sold out タンザニア産サファイア 0.622ctルース

[Sales start August 27, 10 PM JST] Tanzanian Sapphire 0.622 ct Loose (Color Change Sapphire) with Appraisal Report
Sold out ブラジル産スペサルティンガーネット 0.923ctルース

[Listed as 12564067] Brazilian Spessartine Garnet 0.923ct Loose Stone
Sold out ミャンマー産ピンクグロッシュラーガーネット 0.558ctルース

[Lottery Sale 0718_11] Pink Grossular Garnet from Myanmar, 0.558 ct. Loose Stone, JGGL certified
Sold out ナイジェリア産マンダリンガーネット 1.347ctルース

[#202607 Akihabara Pop-up Store - Currently Removed] [12559462 Listed] Nigerian Mandarin Garnet 1.347ct Loose Gemstone
Sold out タンザニア産カラーチェンジウィンザーサファイア 0.621ctルース

[Item 12563752] Tanzania Color-Change Winza Sapphire, 0.621ct Loose
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） 1.087ctルース

Madagascar Bekily Blue Garnet (Color Change Garnet) 6.0mm/1.087ct Loose Stone

Sold out 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） 1.926ctルース

Rainbow Garnet (Andradite Garnet) Loose Stone, 1.926ct, Tenkawa Village, Nara Prefecture
Sold out 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） 2.763ctルース

Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture, 2.763ct Loose Stone
Sold out 【12563975掲載】合成モアッサナイト 4.137ctルース

【Lottery Sale 0825_12】【Koshu Kiseki Kiriko pluesthree】Synthetic Moissanite 10mm/4.137ct Loose Stone

Sold out ゴーシェナイト 0.846ctルース

Goshenite 0.846ct loose stone
Sold out ブラジル産デュモルチェライトインクォーツ 0.957ctルース

Brazilian Dumortierite in Quartz 0.957ct Loose Stone
Sold out ブラジル産ライモナイトインクォーツ（オーロラクォーツ） 2.291ctルース

Brazilian Limonite in Quartz (Aurora Quartz) 2.291ct Loose
Sold out タンザニア産コーネルピン 0.196ctルース

Tanzanian Kornerupine, 0.196 ct Loose
Sold out ビルマ産非加熱カラーチェンジサファイア 0.400ctルース

0.400ct Unheated Color Change Sapphire from Burma (Myanmar) - GIA

Sold out ビルマ産非加熱カラーチェンジサファイア 0.440ctルース

Burmese unheated color change sapphire 0.440ct loose GIA

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.