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Width: 5.1 - 6.0mm

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Sold out 【12562747掲載】マダガスカル産非加熱ティールグリーンサファイア 1.740ctルース
Sold out Indian Alexandrite Cat's Eye 1.03ct Loose GIA
coming soon [Lottery Sale 0531_14] Greenland Sapphire 1.258 ct Loose Stone with ChuBo & Analysis Data
Sold out Diamond 0.320ct loose (D, VS2)
Sold out オーストラリア産レインボーラティスサンストーン 0.865ctルース
coming soon Bulgarian Sphalerite 5.8mm/1.058ct Loose Stone
Sold out タンザナイト 0.580ctルース
Sold out オーストラリア産ブラックオパール 0.588ctルース
Sold out Brazilian Bicolor Blue Topaz 1.317ct Loose Stone (Untreated)
Sold out 【12562099掲載】インド産アイオライトサンストーン 0.920ctルース
Sold out 【12562087掲載】ブラジル産デュモルチェライトインクォーツ 0.914ctルース
Sold out 【12559023掲載】ブラジル産アベンチュリンベリル 0.621ctルース
Sold out 【12562007掲載】スペイン産スファレライト 0.920ctルース
Sold out 【12562005掲載】スペイン産スファレライト 0.878ctルース
Sold out 【12561996掲載】メキシコ産ファイアオパール 1.260ctルース
Sold out 【12561989掲載】アメリカ産オレゴンサンストーン 0.793ctルース
Sold out 【12561976掲載】ブラジル産デュモルチェライトインクォーツ 1.392ctルース
Sold out 【12561974掲載】ブラジル産デュモルチェライトインクォーツ 2.054ctルース
Sold out ブラジル産デュモルチェライトインクォーツ 0.975ctルース
Sold out 【12561949掲載】南アフリカ産スギライト 0.850ctルース
Sold out 【12561941掲載】ブラジル産メデューサクォーツ(パライバクォーツ) 1.202ctルース
Sold out 【12561526掲載】タンザニア産ピンクジルコン 1.736ctルース
Sold out Brazilian Rainbow Scapolite 0.435ct Loose Stone
Sold out 【12561174掲載】メキシコ産ファイアオパール(ファセットカット) 0.517ctルース
Sold out Brazilian London Blue Topaz 0.641ct Loose
Sold out 【12561913掲載】オーストラリア産ブラックオパール 0.221ctルース
Sold out [Sakura In-Cut] Oregon Sunstone from the United States, 6.0mm/0.638ct Loose
Sold out オーストラリア産ブラックオパール 0.565ct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) 0.989ctルース
Sold out [Yukinko Cut] Siberian Blue Quartz (Synthetic Quartz) 0.999ct Loose Stone
Sold out Afghan Kunzite 0.606ct Loose Stone
Sold out 0.933 ct loose Brazilian aventurine beryl
Sold out Brazilian Dumortierite in Quartz 1.516ct Loose Gemstone
Sold out [Sakura In-Cut] Sapphire from Ratnapura, Sri Lanka, 6.0mm/0.839ct Loose
Sold out Russian Phenakite 0.615ct Loose Stone
Sold out Afghan Kunzite 5.6mm/0.897ct Loose
Sold out Unheated Madagascar Purple Sapphire 1.170ct Loose GIT
Sold out Unheated Blue Sapphire from Madagascar, 1.380ct Loose, AIGS
Sold out 1.091ct loose Australian black opal
Sold out [Sakura In-Cut] Tanzanite from Tanzania 6.0mm/0.774ct Loose Stone
Sold out Tanzanian Dragon Garnet 1.181ct Loose Stone
Sold out Indian Parrot Chrysoberyl Cat's Eye 1.225ct Loose
Sold out Indian Parrot Chrysoberyl Cat's Eye 5.6mm/1.715ct Loose Stone
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 [12/10 22:00] Mali Garnet (Grossular/Andradite Garnet) 1.008ct Loose Stone from the Republic of Mali 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

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.