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Sold out マダガスカル産デマントイドガーネット 38.035ct原石
Sold out [Takeshi Yamamoto] Brazilian Dendritic Quartz 25.875ct Loose
Sold out Tanzanian Kornerupine 0.103ct Loose Stone
Sold out Tanzanian Dragon Garnet 1.181ct Loose Stone
Sold out Tanzanian Dragon Garnet 1.042ct Loose Stone
Sold out Grandidierite from Madagascar 0.167ct loose stone
Sold out Grandidierite from Madagascar 0.169ct loose stone
Sold out Indian Parrot Chrysoberyl Cat's Eye 5.0mm/1.099ct 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 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 ゴーシェナイト 1.989ctルース
Sold out Brazilian kyanite in quartz 4.770ct loose
Sold out スターガーネット 14.600ctルース
Sold out ロシア産デマントイドガーネット(ホーステール認む) 1.058ctルース
Sold out マダガスカル産バイカラークリソベリル 1.590ctルース
Sold out Kunzite from Afghanistan 26.784ct loose
Sold out Brazilian dumortierite in quartz 4.592ct loose
Sold out Russian Demantoid Garnet (Horsetail) 4.2mm/0.325ct Loose Stone
Sold out Brazilian Dumortierite in Quartz 1.779ct Loose Stone
Sold out [On Sale at 10 PM on December 7th] Rainbow Garnet (Andradite Garnet) 2.365ct Loose Stone from Tenkawa Village, Nara Prefecture
Sold out Mali Garnet (Grossular/Andradite Garnet) 0.811ct Loose Stone from the Republic of Mali with Certificate of Authenticity
Sold out Synthetic Opal 0.856ct Loose (Synthetic Water Opal)
Sold out Chrome tourmaline 0.300ct loose stone
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 Rainbow Garnet (Andradite Garnet) 7.0mm/2.135ct Loose Stone from Tenkawa Village, Nara Prefecture
Sold out Brazilian Dumortierite in Quartz 2.012ct Loose Stone
Sold out Brazilian Dumortierite in Quartz 1.995ct Loose Stone
Sold out Brazilian Dumortierite in Quartz 1.924ct Loose Stone
Sold out クリソベリルキャッツアイ 2.283ctルース
Sold out 0.447ct Loose Chrysoberyl Cat's Eye from Sri Lanka
Sold out 0.559ct Sri Lankan Chrysoberyl Cat's Eye Loose Stone
Sold out 2.393ct Synthetic Sapphire Loose Stone (Synthetic Blue Sapphire)
Sold out 2.077ct Synthetic Sapphire Loose Stone (Synthetic Blue Sapphire)
Sold out Synthetic sapphire 1.416ct loose stone (synthetic pink sapphire)
Sold out Brazilian Goshenite 0.527ct loose stone
Sold out Mali Garnet (Grossular/Andradite Garnet) 0.872ct Loose Stone from the Republic of Mali with Certificate of Authenticity
Sold out アルマンディンガーネット 2.076ctルース
Sold out 【甲州貴石切子plusthree】パイライトインクォーツ 12.164ctルース ワッペン付
Sold out ロードライトガーネット 0.990ctルース
Sold out クォーツ 96.732ctルース(爆裂水晶)
Sold out ロシア産デマントイドガーネット(ホーステール認む) 5.2mm/0.702ctルース
Sold out カラーチェンジサファイア 0.946ct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) 2.483ct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) 1.163ctルース
Sold out ロシア産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) 2.5mm/0.141ctルース
Sold out タンザニア産アルマンディンガーネット 2.697ct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.