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Sold out Limited Quantity: Madagascar Neon Blue Apatite Rough Stone (Average 2.2ct) Multiple Purchase Discounts Available

Limited Quantity: Madagascar Neon Blue Apatite Rough Stone (Average 2.2ct) Multiple Purchase Discounts Available
Sold out Felspar 1.478ct loose from Sri Lanka

Felspar 1.478ct loose from Sri Lanka
Sold out モザンビーク産ピンクサファイア 0.213ctルース（ホットピンクサファイア）

Pink sapphire from Mozambique 0.213ct loose (hot pink sapphire)
Sold out ブラジル産アレキサンドライト 0.058ctルース

[Posted 12544974] Alexandrite from Brazil 0.058ct loose
Sold out コロンビア産トラピッチェエメラルド（逆トラピッチェ） 0.053ctルース

Colombian trapiche emerald (reverse trapiche) 0.053ct loose
Sold out アンダリュサイト 0.317ctルース

Spanish Andalusite 0.317ct loose stone
Sold out GGG（ガドリウムガリウムガーネット） 0.675ctルース

GGG (Gadolium Gallium Garnet) 4.0mm/0.675ct Loose Stone
Sold out Synthetic rutile 0.538ct loose stone

Synthetic rutile 0.538ct loose stone
Sold out アフガニスタン産アフガナイト 0.077ctルース

Afghanite 0.077ct loose stone from Afghanistan
Sold out 【猫カット】ブラジル産ホワイトカルセドニー 0.707ctルース

[Cat Cut] Brazilian White Chalcedony 0.707ct Loose Stone
Sold out ミャンマー産トラピッチェルビー 0.152ct原石

Myanmar trapichel ruby ​​0.152ct rough stone
Sold out ミャンマー産トラピッチェルビー 0.261ct原石

Myanmar trapichel ruby ​​0.261ct rough stone
Sold out 合成オパール 6.1mm/0.792ctルース（ローズカット） (ローズカット)

Synthetic Opal 6.1mm/0.792ct Loose Stone (Rose Cut)
Sold out タンザニア産サンストーン（イリュージョンサンストーン） 6.3mm/0.911ctルース（ローズカット）

Tanzanian Sunstone (Illusion Sunstone) 6.3mm/0.911ct Loose Stone (Rose Cut)
Sold out タンザニア産アンデシン・ラブラドライト（通称名 レインボームーンストーン） 4.3mm/0.238ctルース（ローズカット）

Tanzanian Andesine Labradorite (also known as Rainbow Moonstone) 4.3mm/0.238ct Loose Stone (Rose Cut)
Sold out Pink Diamond Gacha💎 (Includes two Fancy Intense 0.063ct diamonds with a medium-sized gemstone, normally priced at ¥98,000, and two Fancy Purplish Pink 1.7mm 0.021ct diamonds) {Multiple purchase discounts available}

Pink Diamond Gacha💎 (Includes two Fancy Intense 0.063ct diamonds with a medium-sized gemstone, normally priced at ¥98,000, and two Fancy Purplish Pink 1.7mm 0.021ct diamonds) {Multiple purchase discounts available}
Sold out Limited to 3 stones: Indian Andesine and Labradorite (Rainbow Moonstone) Flower Carving, 6mm, 1 stone. Discounts available for multiple purchases.

Limited to 3 stones: Indian Andesine and Labradorite (Rainbow Moonstone) Flower Carving, 6mm, 1 stone. Discounts available for multiple purchases.
Sold out Limited to 4 stones: Carving Gacha (pink tourmaline, average 3.4 carats) 1 loose stone (multiple purchase discounts available)

Limited to 4 stones: Carving Gacha (pink tourmaline, average 3.4 carats) 1 loose stone (multiple purchase discounts available)
Sold out Limited to 9 stones: Carving Gacha (Opal, Tourmaline, Tsavorite Garnet) 1 loose stone (Multiple purchase discounts available)

Limited to 9 stones: Carving Gacha (Opal, Tourmaline, Tsavorite Garnet) 1 loose stone (Multiple purchase discounts available)
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 Yellow sapphire from Madagascar 0.232ct loose

Yellow sapphire from Madagascar 0.232ct loose
Sold out ブラジル産インディゴライトトルマリン 0.210ctルース 鑑別書

Brazilian Indigolite Tourmaline 0.210ct Loose Stone with Certificate of Authenticity
Sold out ナイジェリア産モルガナイト 0.354ctルース

Nigerian morganite 0.354ct loose stone
Sold out エチオピアサンストーン 0.505ctルース

Ethiopian Sunstone 0.505ct Loose
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） 1.329ctルース

Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture, 6.0mm/1.329ct Loose Stone (Rose Cut)
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） 0.732ctルース

Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture, 5.5mm/0.732ct Loose Stone (Rose Cut)
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） 0.719ctルース

Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture, 5.2mm/0.719ct Loose Stone (Rose Cut)
Sold out American Red Beryl 2.0mm/0.032ct Loose Stone

American Red Beryl 2.0mm/0.032ct Loose Stone
Sold out チベット産アンデシン 1.387ctルース

Tibetan Andesine 1.387ct Loose Stone (Pixel Cut)
Sold out アフガニスタン産ハックマナイト 0.105ctルース

Afghanistan Hackmanite 0.105ct Loose Stone
Sold out アフガニスタン産ハックマナイト 0.105ctルース

Afghanistan Hackmanite 0.105ct Loose Stone
Sold out ロードライトガーネット 0.843ctルース

Tanzanian Rhodolite Garnet 0.843ct Loose Stone
Sold out ブラジル産ブルートルマリン 0.376ctルース

Brazilian blue tourmaline 0.376ct loose
Sold out タンザニア産ピンクゾイサイト 1.581ct原石

[Posted 12543492] Pink Zoisite 1.581ct rough stone from Tanzania

Sold out スリランカ産スピネル 0.276ctルース

Spinel from Sri Lanka 0.276ct loose

Sold out Single loose Russian oil-free emerald (2.1mm, square cut) {Multiple purchase discounts available}

Single loose Russian oil-free emerald (2.1mm, square cut) {Multiple purchase discounts available}
Sold out November birthstone topaz gacha! Win an 8.16ct sky blue topaz from Koshu Kiriko (Sakura Kiriko) and more! (Multiple purchase discounts available)

November birthstone topaz gacha! Win an 8.16ct sky blue topaz from Koshu Kiriko (Sakura Kiriko) and more! (Multiple purchase discounts available)
Sold out Limited to 10 stones: Tanzanite rough stone gacha including bicolor pink tanzanite rough stones (average 4.2 carats) [Multiple purchase discounts available]

Limited to 10 stones: Tanzanite rough stone gacha including bicolor pink tanzanite rough stones (average 4.2 carats) [Multiple purchase discounts available]
Sold out Takeshi Yamamoto's work Gacha (Fire Flower Cut, etc., Bonus: Yamamoto-polished Planite) 1 loose stone 💎 {Multiple purchase discounts available}

Takeshi Yamamoto's work Gacha (Fire Flower Cut, etc., Bonus: Yamamoto-polished Planite) 1 loose stone 💎 {Multiple purchase discounts available}
Sold out Win two unheated royal blue sapphires (with AIGS certificate) in the Blue Sapphire Lottery (Multiple purchase discounts available)

Win two unheated royal blue sapphires (with AIGS certificate) in the Blue Sapphire Lottery (Multiple purchase discounts available)
Sold out [Sales end on Sunday, August 31st] TV anime "A long time ago, magical girls and evil were enemies." x KARATZ collaboration acrylic coaster featuring newly drawn illustrations

[Sales end on Sunday, August 31st] TV anime "A long time ago, magical girls and evil were enemies." x KARATZ collaboration acrylic coaster featuring newly drawn illustrations

Sold out タンザニア産サンストーン 0.807ctルース

Tanzanian Sunstone 0.807ct Loose Stone
Sold out アフガニスタン産クンツァイト 0.753ctルース

Kunzite from Afghanistan 0.753ct loose stone
Sold out タンザニア産ブルーゾイサイト 0.473ctルース

Tanzanite from Tanzania, 0.473ct loose
coming soon Pakistani Peridot 0.649ct Loose Stone

Pakistani Peridot 0.649ct Loose Stone Sale price¥8,800
Sold out パキスタン産ペリドット 5.0mm/0.517ctルース

Pakistani Peridot 5.0mm/0.517ct Loose Stone
Sold out ジンバブエ産スフェーン 4.7mm/0.400ctルース

Zimbabwean sphene 4.7mm/0.400ct loose stone
Sold out マダガスカル産ブルーアパタイト 0.527ctルース

0.527ct Blue Apatite Loose Stone from Madagascar

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.