¥30,000 - ¥50,000

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【9/15 22時販売】【カラフリ】Pt950アレキサンドライト0.07ct・ダイヤモンド 0.03ctペンダントトップ（ネックレストップ）鑑別書

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【9/7 22時販売】タンザニア産タンザナイト 6.3mm/1.182ctルース

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【9/2 22時販売】マダガスカル産グランディディエライト 0.226ctルース鑑別書

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【9/2 22時販売】ブラジル産アレキサンドライト 2.8mm/0.112ctルース鑑別書

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[Listed as 12563196] Imperial Topaz from Brazil, 1.036ct Loose Gemstone

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[Sales start August 27, 10 PM JST] Tanzanian Sapphire 0.622 ct Loose (Color Change Sapphire) with Appraisal Report

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[12564014 listed] Madagascar Royal Blue Sapphire 0.559ct Loose Stone

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[Posted on 12563959] Madagascar Padparadscha Sapphire 0.164ct Loose Stone

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[Lottery Sale 0620_06] Boké Coral (Kochi Prefecture) 6.735ct Loose

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[#202607 Akihabara Popup Exhibit] [Published in 12563402] Petzottaite, Madagascar, 0.188ct Loose

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[On Sale 10 PM, June 7] Limited to 3 Sets 1.0ct/D/VS-VVS/IDEAL Lab-Grown Diamond (Synthetic Diamond) & 2 Rare Cabochon Stones (Total of 3 Stones Included) Multiple Purchase Discount Available

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【スターインカット】メキシコ産ファイアオパール 7mm/0.678ctルースワッペン付

[Star in cut] Mexican fire opal 7mm/0.678ct loose patch

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[On sale August 10, 10 PM] K18PG Azuki Chain (Azuki Chain) approx. 40cm

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[Sales start August 10 at 10 PM JST] Pt850 Venetian Chain, approx. 40cm

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【#202607 Akihabara Pop-up Store - Currently out on loan】【22602619 Listed】K18 Blood Coral 0.33ct Pendant (Necklace)

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ダイヤモンド（H&C） 0.257ctルース(D, SI1, Excellent H&C)

Diamond (H&C) 0.257ct Loose (D, SI1, Excellent H&C)

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0.566ct Loose Blue Sapphire from Sri Lanka, with Japan-Germany appraisal

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[Posted as 12563888] German Hauyne, 0.081ct Loose Gemstone

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【Lottery Sale 0825_12】【Koshu Kiseki Kiriko pluesthree】Synthetic Moissanite 10mm/4.137ct Loose Stone

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0.159 ct Loose Padparadscha Sapphire from Madagascar, Central Gem Laboratory certified

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Madagascar Paparadscha Sapphire 3.5mm/0.234ct Loose Stone, Central Gem Lab certified

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[Sale begins August 5th at 10 PM] Colombian Emerald 0.792ct Loose Stone with Certification

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[Listed as 12563398] Brazilian Alexandrite 0.220ct Loose Stone

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[Listed 22602671] [Karahuri] K18 Jadeite (Jade) 1.051ct Pendant Top

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USA Origin Oregon Sunstone 7.0mm/1.441ct Loose

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Tanzanian Bicolor Zoisite 1.136ct Loose Stone with Certification

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Australian black opal, 0.894 ct loose

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Australian black opal 0.766ct loose stone

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K18WG タンザナイト 0.96ct・ダイヤモンド0.03ctペンダントトップ（ネックレストップ）鑑別書

[Qalafri] K18WG Tanzanite 0.96ct Diamond 0.03ct Pendant Top with Certificate of Authenticity

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1.004 ct Loose Unheated Yellow Star Sapphire from Myanmar, with Japan-Germany Gemological Report

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0.101ct Maw Sit Sit Loose Stone from Myanmar, Nichidoku Identification

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Madagascar Grandidierite 0.179ct Loose Stone with Certificate

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Australian Black Opal 0.877ct Loose

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【さくらインカット】コンゴ産ピンクトルマリン 6.6mm/0.819ctルース鑑別書

[Sakura Incut] Congolese Pink Tourmaline 6.6mm/0.819ct Loose with Certificate

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[Lottery Sale 0409_04] Burmese Taaffeite 3.0mm/0.128ct Loose Stone with Appraisal

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Brazilian Paraiba Tourmaline 2.6mm/0.056ct Loose Gemstone (CuO:1.9% MnO:0.6%)

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Tanzanian Windsor Sapphire (Brown Sapphire) 1.137ct Loose Stone with Gemstone Identification Report

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Madagascar Padparadscha Sapphire 3.5mm/0.206ct Loose, Central Gem Laboratory

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Kochi Prefecture deep red coral 7.815ct loose gemstone

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Spanish Sphalerite 7.0mm/1.753ct loose stone

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0.221ct Loose Padparadscha Sapphire from Madagascar, accompanied by a Central Gem Laboratory certificate

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U.S.-origin Neptunite 0.162ct Loose Stone with Gemstone Report

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Green Hauyne from Afghanistan, 0.142ct Loose, with Certificate

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0.202 ct Loose Pezzottaite from Madagascar with certification

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Brazilian Silky Alexandrite 0.286ct Loose Stone with Certification

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Tanzanian Pink Spinel 3.9mm/0.246ct Loose Stone with Appraisal

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K14WG ブラックダイヤモンド 0.89ct ペンダントトップ（ネックレストップ）

[Calafuri] K14WG Black Diamond 0.89ct, Diamond 0.13ct Pendant Top (Necklace Top) with Appraisal Report

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グリーンダイヤモンド（トリートメント） 0.183ctルース(FANCY INTENSE YELLOW GREEN TREATED, VS1)

Apple Green Diamond (Treated) 3.6mm/0.183ct Loose Stone (FANCY INTENSE YELLOW GREEN TREATED, VS1)

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.