Skip to content

Less than 1.0ct

Sort by

Sold out German Apatite 3.1mm/0.100ct Loose Stone
Sold out Indian Moonstone 5.0mm/0.474ct Loose Stone (Rose Cut)
Sold out American benitoite 0.147ct loose
Sold out American benitoite 0.133ct loose
Sold out ピンクサファイア 0.881ctルース
Sold out デマントイドガーネットキャッツアイ(ホーステール認む) 0.171ctルース
Sold out デマントイドガーネットキャッツアイ(ホーステール認む) 0.222ctルース
Sold out 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) 0.167ctルース
Sold out マダガスカル産バイカラーサファイア 0.259ctルース
Sold out マダガスカル産バイカラーサファイア 0.212ctルース
Sold out トルコ産ダイアスポア 0.858ctルース
Sold out オパール 0.595ctルース
Sold out Citrine 0.833ct loose stone
Sold out ベトナム産非加熱シルキーピンクサファイア 0.197ctルース
Sold out Brazilian Alexandrite 0.244ct Ruth (Hemachita Mine)
Sold out [On Sale at 10 PM on December 7th] Rainbow Garnet (Andradite Garnet) 5.4mm/0.771ct Loose Stone from Tenkawa Village, Nara Prefecture
Sold out Madagascar Iolite 0.644ct Loose Stone
Sold out [On Sale at 10 PM on December 7th] Madagascar Andesine Labradorite Moonstone (also known as Rainbow Moonstone) 0.178ct Loose Stone
Sold out [12/7 22:00] Sri Lankan Yellow Sapphire 0.508ct Loose
Sold out [12/9 22:00 Sale] Sinhalite from Sri Lanka 0.658ct Loose Stone
Sold out Tanzanian Kornerupine 2.7mm/0.075ct Loose Stone
Sold out [12/10 22:00 Sale] Pakistani Ludwigite Peridot 0.609ct Loose Stone
Sold out Mali Garnet (Grossular/Andradite Garnet) 0.811ct Loose Stone from the Republic of Mali with Certificate of Authenticity
Sold out Colombian emerald 3.0mm/0.098ct loose stone
Sold out Brazilian alexandrite 0.112ct loose
Sold out バイカラータンザナイト 0.581ctルース
Sold out Chrome tourmaline 0.300ct loose stone
Sold out ダイヤモンド原石(メイカブル) 0.247ct原石
Sold out マダガスカル産アンデシン・ラブラドライト(通称名 レインボームーンストーン) 0.696ctルース
Sold out [Sakura In-Cut] Tibetan Andesine 6.0mm/0.631ct Loose Stone
Sold out [Dandelion Cut] Madagascar Sphene 0.950ct Loose Stone
Sold out [Dandelion Cut] Madagascar Sphene 6.0mm/0.775ct Loose Stone
Sold out [Sakura In-Cut] Oregon Sunstone from the United States, 6.0mm/0.685ct Loose
Sold out [Sakura In-Cut] Mali Garnet (Grossular/Andradite Garnet) from the Republic of Mali, 6.0mm/0.920ct Loose Stone with Certificate of Authenticity
Sold out Sri Lankan blue sapphire 0.645ct loose stone
Sold out Australian black opal 0.623ct loose stone
Sold out Australian Black Opal 0.825 ct Loose Stone
Sold out Madagascar Bicolor Sapphire 4.5mm/0.637ct Loose
Sold out Madagascar Sapphire 4.6mm/0.472ct Loose
Sold out Madagascar Bicolor Sapphire 3.6mm/0.232ct Loose
Sold out ベリル 0.951ctルース
Sold out 【12545837掲載】モザンビーク産パライバトルマリン 0.256ctルース
Sold out 【サンジェ氏】パープルスピネル 0.995ctルース
Sold out ジルコン 0.416ctルース
Sold out モザンビーク産パライバトルマリン 0.229ctルース
Sold out チタン酸ストロンチウム 0.410ctルース
Sold out ナイジェリア産グリーンベリル 0.258ctルース
Sold out American peridot 0.334ct 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.