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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 Pink diamond 0.070ct loose (FANCY INTENSE PURPLE PINK, I1)
Sold out Pink diamond 0.030ct loose (FANCY PURPLE PINK, SI2)
Sold out モンタナサファイア 0.443ctルース
Sold out Montana Sapphire 0.561ct loose (bicolor sapphire)
Sold out Bicolor Sphalerite 9.8mm/4.517ct loose
Sold out モンタナサファイア 0.416ctルース
Sold out モンタナサファイア 0.458ctルース
Sold out モンタナサファイア 0.235ctルース
Sold out オーストラリア産シェルオパール(貝オパール) 96.177ct原石
Sold out ウォーターメロントルマリン 3.403ctルース
Sold out デンドリティッククォーツ 4.272ctルース
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 1.082ctルース
Sold out ブルッカイレピドクロサイトインクォーツ) 7.354ctルース
Sold out 《Limited to 13 stones》Synthetic Gacha (with additional synthetic alexandrite) including D/IF/3EX lab-grown diamonds normally priced at 39,800 yen and Sakura-cut YAGs normally priced at 59,800 yen. 《Multiple purchase discount available》
Sold out [On sale June 7th at 10 PM] Limited to 1 set: 6-stone Benitoite Gradient Set, including Orange Benitoite (Peach Benitoite) (2.25mm, includes top quality) [Multiple Purchase Discount Available]
Sold out Benitoite Gradation 6 Stone Set (2.0mm, Round Cut, Including Top Quality) 《Multiple Purchase Discount Available》
Sold out インド産カバンサイト 240.461ct原石
Sold out [On sale June 7th at 10 PM] Limited 1 set: 6-stone Benitoite Gradient Set (including Orange Benitoite (Peach Benito) and Top Quality, 1.75mm). Multiple purchase discount available.
Sold out Synthetic Cobalt Spinel 1.342ct Loose Stone with Certificate
Sold out 【12562073掲載】ブラジル産ライモナイトインクォーツ(オーロラクォーツ) 2.993ctルース
Sold out 【12562074掲載】ブラジル産ライモナイトインクォーツ(オーロラクォーツ) 1.894ctルース
Sold out Oregon Sunstone from USA 7.1mm/1.366ct Loose
Sold out 【12562076掲載】アメリカ産オレゴンサンストーン 1.334ctルース
Sold out 0.929ct Dumortierite in Quartz from Brazil Loose Gemstone
Sold out 【12562085掲載】ブラジル産デュモルチェライトインクォーツ 0.603ctルース
Sold out 【12562091掲載】ブラジル産デュモルチェライトインクォーツ 0.720ctルース
Sold out 0.522 ct Dumortierite in Quartz from Brazil, Loose
Sold out 【12562093掲載】ブラジル産デュモルチェライトインクォーツ 0.839ctルース
Sold out 【12562097掲載】ブラジル産デュモルチェライトインクォーツ 0.594ctルース
Sold out 【12562098掲載】ブラジル産デュモルチェライトインクォーツ 0.531ctルース
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 【12562100掲載】ブラジル産シトリン 1.852ctルース
Sold out 【12562103掲載】ティンカーベルクォーツ(ピンクファイヤークォーツ) 2.363ctルース
Sold out Brazilian color-shift amethyst 1.085ct loose
Sold out Brazilian Color Change Amethyst 1.998ct Loose
Sold out 【12562113掲載】カラーシフトアメジスト 3.128ctルース
Sold out Brazilian Pink Amethyst 2.545ct Loose Stone
Sold out Mozambique Almandine Garnet 0.961ct Loose
Sold out 0.562ct Almandine Garnet Loose Stone from Mozambique
Sold out 0.628ct Mozambican Rhodolite Garnet Loose Stone
Sold out Tanzanian UV Type Mint Garnet 0.440ct Loose Stone
Sold out Brazilian Lazulite (blue spar) 0.030ct Loose with certificate
Sold out 【12562398掲載】メキシコ産ファイアオパール 0.291ctルース
Sold out 【12562400掲載】メキシコ産オパール 0.265ctルース
Sold out Limited to 10 stones: Madagascar pink sapphire (heart-shaped, including padparadscha color, approximately 3 x 2.3 mm) [Multiple purchase discounts available]
Sold out 《Limited to 20 Stones》Emerald Gacha: Win a 2.2ct Columbia Emerald Koshu-Kiseki Cut (normally 79,800 yen) or an Emerald Cat's Eye! 《Multiple Purchase Discount Available》
Sold out 《Limited to 20 stones》Demantoid Garnet Gacha, including Russian demantoid garnets, normally priced at 69,800 yen 《Multiple purchase discount available》

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.