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colored stone loose

A list of colored stones and loose gemstones.

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Benitoite 1.8mm/0.025ct loose stone (colorless benitoite)

Benitoite 1.8mm/0.025ct loose stone (colorless benitoite) Sale price¥15,800
Brazilian rutilated quartz (rutile/rutile quartz (rutilated quartz)) 1 loose stone (6.0-6.5mm, for beginners) {Multiple purchase discounts available}

Brazilian rutilated quartz (rutile/rutile quartz (rutilated quartz)) 1 loose stone (6.0-6.5mm, for beginners) {Multiple purchase discounts available} Sale price¥2,580
{2 stones remaining} 1 Labradorite loose stone (20 x 15 mm, for beginners) {Multiple purchase discounts available}

{2 stones remaining} 1 Labradorite loose stone (20 x 15 mm, for beginners) {Multiple purchase discounts available} Sale price¥3,980
Limited to 6 stones: 1 loose, unheated silky pink sapphire from Vietnam (milky pink sapphire) Multiple purchase discounts available

Limited to 6 stones: 1 loose, unheated silky pink sapphire from Vietnam (milky pink sapphire) Multiple purchase discounts available Sale price¥5,980
ブラジル産パライバトルマリンインクォーツ 0.871ctルース

Brazilian Paraiba tourmaline in quartz 0.871ct loose Sale price¥18,800
Mozambique colorless tourmaline (acroite) 3.542ct loose stone

Mozambique colorless tourmaline (acroite) 3.542ct loose stone Sale price¥69,800
雲母インクォーツ 0.980ctルース

Mica in Quartz 0.980ct Loose Sale price¥6,980
雲母インクォーツ 0.834ctルース

Mica in Quartz 0.834ct Loose Stone Sale price¥6,980
雲母インクォーツ 0.544ctルース

Mica in Quartz 0.544ct Loose Stone Sale price¥6,980
メキシコ産エッグインオパール 1.243ctルース

Mexican egg-in-opal 1.243ct loose stone Sale price¥14,800
メキシコ産エッグインオパール 0.627ctルース

Mexican egg-in-opal 0.627ct loose stone Sale price¥8,800
【甲州貴石切子plusthree】スカイブルートパーズ 6mm/0.988ctルース ワッペン付

[Koshu Precious Stones Plusthree] Sky Blue Topaz 6mm/0.988ct Loose Stone with Patch Sale price¥25,800
エチオピア産オパール 0.466ctルース

Ethiopian Opal 0.466ct Loose (Heart Shape, Faceted Cut) Sale price¥3,980
エチオピア産オパール 0.294ctルース

Ethiopian Opal 0.294ct Loose (Heart Shape, Faceted Cut) Sale price¥6,980
モンタナサファイア 0.254ctルース

Montana Sapphire 0.254ct loose Sale price¥9,800
アメリカ産レッドベリル 0.207ctルース

American red beryl 0.207ct loose Sale price¥49,800
グリーンクォーツ 0.743ctルース

[Koshu Precious Stones plusthree] Green Quartz 6mm/0.743ct Loose with Patch Sale price¥25,800
Limited to 6 stones: Aquamarine + Iolite loose stone set of 2 (March birthstone) Multiple purchase discounts available

Limited to 6 stones: Aquamarine + Iolite loose stone set of 2 (March birthstone) Multiple purchase discounts available Sale price¥2,980
【ムーンシュタイナー】パイライトインクォーツ 18.288ctルース

[Moonsteiner] Pyrite in Quartz 18.288ct Loose Sale price¥59,800
コーネルピンキャッツアイ 0.866ctルース

Tanzanian Kornerupine Cat's Eye 0.866ct Loose Stone Sale price¥5,980
タンザニア産コーネルピンキャッツアイ 1.539ctルース

Tanzanian Kornerupine Cat's Eye 1.539ct Loose Stone Sale price¥9,800
《限定17石》イギリス・ロジェリー産フローライト1石ルース《複数購入割引有》

Limited to 17 stones: 1 loose fluorite stone from Rogerley, England. Discounts available for multiple purchases. Sale price¥3,980
パープルスピネル 0.422ctルース

Purple Spinel 4.8mm/0.422ct Loose Stone Sale price¥6,980
ピンクスピネル 0.573ctルース

Pink spinel 5.2mm/0.573ct loose stone Sale price¥6,580
スピネル 0.365ctルース

Purple spinel 4.5mm/0.365ct loose Sale price¥4,980
ピンクスピネル 0.342ctルース

Pink spinel 4.3mm/0.342ct loose Sale price¥6,980
ピンクスピネル 0.192ctルース

Pink spinel 3.8mm/0.192ct loose Sale price¥5,980
タンザニア・マヘンゲ産ピンクスピネル原石・ルース2石セット（プリンセスカット）《複数購入割引有》

《Limited to 20 stones》 Pink spinel raw stone from Mahenge, Tanzania, loose 2 stone set (princess cut)《Multiple purchase discount available》 Sale price¥3,980
【12548939掲載】マダガスカル産ラズライトインクォーツ 1.600ctルース

Lazurite in quartz from Madagascar 7.5mm/1.600ct loose Sale price¥18,800
ブラジル産グリーンクォーツ1石ルース（10mm）

[Limited to 9 stones] Brazilian green quartz 1 stone loose (10mm) [Multiple purchase discount available] Sale price¥3,980
ブラジル産グリーンクォーツ1石ルース

《Limited to 6 stones》 1 stone loose green quartz from Brazil (8mm, concave cut) 《Discount available for multiple purchases》 Sale price¥3,980
パープルスピネル 0.465ctルース

Purple spinel 0.465ct loose Sale price¥5,980
スリランカ産ツインスターサファイア 3.003ctルース

Twin star sapphire from Sri Lanka 3.003ct loose (Violet star sapphire) Sale price¥59,800
スリランカ産ツインスターサファイア 3.858ctルース

Twin star sapphire from Sri Lanka 3.858ct loose (black star sapphire) Sale price¥59,800
スリランカ産ツインスターサファイア 2.523ctルース

Twin star sapphire from Sri Lanka 2.523ct loose Sale price¥98,000
[Limited to 18 stones] [Mr. KEN] 1 stone loose Andalusite from Spain (Rose cut, 4.0mm) [Multiple purchase discount] [Yuichiro Abe's work motif]

[Limited to 18 stones] [Mr. KEN] 1 stone loose Andalusite from Spain (Rose cut, 4.0mm) [Multiple purchase discount] [Yuichiro Abe's work motif] Sale price¥5,980
[Limited 7 stones] [Mr. KEN] 1 stone loose Andalusite from Spain (Rose cut, 3.5mm) [Multiple purchase discount] [Yuichiro Abe's work motif]

[Limited 7 stones] [Mr. KEN] 1 stone loose Andalusite from Spain (Rose cut, 3.5mm) [Multiple purchase discount] [Yuichiro Abe's work motif] Sale price¥4,980
クリソベリルキャッツアイ 2.843ctルース

Chrysoberyl cat's eye 2.843ct loose Sale price¥39,800
ヘミモルファイト 9.468ctルース

Hemimorphite 9.468ct loose (published in books and gemstone encyclopedias) Sale price¥69,800
【カメリアカット】カラーシフトアメジスト 20mm/26.815ct《コラボ》ルース ワッペン付

[Camellia cut] Color shift amethyst 20mm/26.815ct 《Collaboration》 Loose with emblem Sale price¥69,800
[Limited to 4 stones] Synthetic moissanite 1 stone loose (rose cut, 5.0mm) [Discount available for multiple purchases]

[Limited to 4 stones] Synthetic moissanite 1 stone loose (rose cut, 5.0mm) [Discount available for multiple purchases] Sale price¥6,980
Raw peridot + 2 loose stones set (August birthstone)《Discount available for multiple purchases》

Raw peridot + 2 loose stones set (August birthstone)《Discount available for multiple purchases》 Sale price¥2,980
Synthetic moissanite 1 stone loose (blue moissanite, 1.2mm)《Multiple purchase discount available》

Synthetic moissanite 1 stone loose (blue moissanite, 1.2mm)《Multiple purchase discount available》 Sale price¥1,000
アメジスト 3.090ctルース

Amethyst 3.090ct loose Sale price¥6,980
カラーチェンジサファイア 0.453ctルース

Color change sapphire 0.453ct loose Sale price¥5,980
マダガスカル産ペツォッタイト 0.128ctルース

Pezzotite from Madagascar 0.128ct loose Sale price¥6,980
マダガスカル産ペツォッタイト 0.142ctルース

Pezzottite from Madagascar 0.142ct loose 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.