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Vertical: 5.1 - 6.0mm

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Sold out Russian Phenakite 0.615ct Loose Stone
Sold out Brazilian unheated pink imperial topaz (sherry pink) 0.438ct loose stone with certificate of authenticity
Sold out Colombian oil-free emerald 0.17ct loose GIA
Sold out Afghan Kunzite 5.6mm/0.897ct Loose
Sold out Brazilian Indicolite Tourmaline 0.342ct Loose
Sold out [Sakura In-Cut] Tanzanite from Tanzania 6.0mm/0.774ct Loose Stone
Sold out Mozambique Ruby 0.481ct Loose Stone with Certificate of Authenticity
Sold out Cambodian Blue Zircon (Ratanakiri Blue) 0.674ct Loose Stone
Sold out Indian Parrot Chrysoberyl Cat's Eye 5.6mm/1.715ct Loose Stone
Sold out 0.848ct Loose Brazilian Medusa Quartz (Paraiba Quartz)
Sold out 0.361ct loose Brazilian Paraiba Tourmaline (CuO:1.0%, MnO:3.6%)
Sold out Indian Moonstone 5.0mm/0.474ct Loose Stone (Rose Cut)
Sold out [12/9 22:00 Sale] Sinhalite from Sri Lanka 0.658ct Loose Stone
Sold out [12/10 22:00 Sale] Pakistani Ludwigite Peridot 0.609ct Loose Stone
Sold out Chinese Cinnabar (Cinnabar) 1.062ct Loose Stone with Certificate of Authenticity
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 Mozambique ruby ​​0.537ct loose stone
Sold out Madagascar Bicolor Sapphire 5.8mm/1.006ct Loose
Sold out 0.447ct Loose Chrysoberyl Cat's Eye from Sri Lanka
Sold out Brazilian Goshenite 0.527ct loose stone
Sold out Indian Moonstone 5.1mm/0.426ct Loose Stone (Rose Cut)
Sold out Tanzanian Almandine Garnet 0.998ct Loose Stone
Sold out タンザニア産アルマンディンガーネット 0.930ctルース
Sold out タンザニア産アルマンディンガーネット 0.902ctルース
Sold out Sri Lankan Purple Sapphire 0.393ct Loose Stone with Certificate of Authenticity
Sold out インド産アイオライトサンストーン 0.745ctルース
Sold out ブラジル産ピンクトルマリン 0.643ctルース
Sold out ブラジル産ブルーアナテース 0.424ctルース
Sold out 合成ルチル 1.020ctルース
Sold out スリランカ産グリーンジルコン 0.734ctルース
Sold out ケニア産ツァボライト 0.411ctルース
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
Sold out ナイジェリア産モルガナイト 0.354ctルース
Sold out 中国産シンシャ(辰砂・シナバー) 1.086ctルース 鑑別書
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
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
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
Sold out アフガニスタン産ハックマナイト 0.246ctルース
Sold out ロードライトガーネット 0.843ctルース
Sold out バイカラーサファイア 0.299ctルース
Sold out スリランカ産ブルーサファイア 0.555ctルース
Sold out タンザニア産サンストーン 0.807ctルース
Sold out タンザニア産ブルーゾイサイト 0.473ctルース
Sold out パキスタン産ペリドット 5.0mm/0.517ctルース

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.