Aquamarine 1.574ct loose stone
Sale price¥9,800
Tinker Bell Quartz (Pink Fire Quartz) 5.001ct loose
Sale price¥8,800
Andesine 3.430ct loose stone
Sale price¥18,800
Bicolor sapphire 1.030ct loose from Windsor, Tanzania
Sale price¥89,800
[Rouge cut] Almandine garnet 1.725ct loose
Sale price¥7,980
【9/29 22時販売】《限定14石》ブラジル産デンドリティッククォーツ1石ルース（平均7ct）《複数購入割引有》
Sale price¥2,980
【9/30 22時販売】《25石限定》アメリカ・スートホーム産ロードクロサイト1石ルース（4mm・カボションカット）《複数購入割引有》
Sale price¥4,580
《限定16石》グリーンランド産ルビー1.2ｍｍ1石ルース（トップクオリティ,巾着ポーチ付）《複数購入割引有》
Sale price¥3,980
【9/28 22時販売】ノンオイルレッドベリル 0.200ctルース GIA
Sale price¥168,000
【9/28 22時販売】ナイジェリア産モルガナイト 1.149ctルース
Sale price¥19,800
【9/28 22時販売】イエローダイヤモンド 3.4mm/0.165ctルース(FANCY VIVID ORANGY YELLOW, SI-2)
Sale price¥29,800
【9/28 22時販売】ジンバブエ産バイカラーユークレース 0.146ctルース
Sale price¥35,800
【9/28 22時販売】アメリカ産ベニトアイト 2.2mm/0.270ctルース（グラデーションセット）
Sale price¥69,800
【9/28 22時販売】ルチル2石セット 6.213ct（原石+ルース）
Sale price¥59,800
【9/28 22時販売】ボリビア産フォスフォフィライト 0.436ctルース 鑑別書
Sale price¥298,000
【9/28 22時販売】マラウイ産バイカラージルコン 0.811ctルース
Sale price¥29,800
【9/28 22時販売】マラウイ産バイカラージルコン 1.661ctルース
Sale price¥59,800
《限定14石》スペイン産スファレライト1石ルース（平均0.55ct）《複数購入割引有》
Sale price¥2,980
【9/28 22時販売】《9セット限定》奈良県天川村産レインボーガーネット原石＋ルース2石セット《複数購入割引有》
Sale price¥6,980
Australian boulder opal 1.868ct loose
Sale price¥18,800
Australian boulder opal 1.675ct loose
Sale price¥14,800
Australian boulder opal 28.880ct loose
Sale price¥59,800
Brazilian lepidocrocite in quartz 2.223ct loose
Sale price¥2,980
Sri Lankan white sapphire 2.9mm/0.086ct loose (rose cut)
Sale price¥3,980
Brazilian imperial topaz 0.467ct loose
Sale price¥15,800
Red spinel 0.195ct loose
Sale price¥5,980
Benitoite 2.7mm/0.114ct loose
Sale price¥25,800
Brazilian alexandrite 0.082ct loose
Sale price¥15,800
Prehnite 3.870ct loose
Sale price¥3,980
Playnight 3.085ct loose
Sale price¥3,980
Prehnite 3.874ct loose
Sale price¥3,980
Brazilian particolor Paraiba tourmaline 0.26ct loose GIA
Sale price¥598,000
Montebrasite from Madagascar 0.328ct loose
Sale price¥3,980
Myanmar Purple Spinel 0.872ct Loose Stone
Sale price¥8,800
YAG (yttrium aluminum garnet) 1.792ct loose
Sale price¥12,800
YAG (Yttrium Aluminum Garnet) 6.5mm/1.774ct loose stone
Sale price¥12,800
Brazilian Paraiba tourmaline 0.226ct loose (CuO:0.7%, MnO:2.5%)
Sale price¥39,800
Bicolor pink star sapphire from Mogok 0.360ct loose
Sale price¥24,800
Bicolor pink euclase from Brazil 3.210ct loose Japanese-German edition
Sale price¥798,000
Bicolor tourmaline 0.591ct loose (rose cut)
Sale price¥8,980
Bicolor tourmaline 0.435ct loose (rose cut)
Sale price¥5,980
Pink tourmaline 0.482ct loose stone
Sale price¥5,980
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.
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.