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Sold out スリランカ産グラスボディ(サファイアクリスタル) 2.754ct原石
Sold out スリランカ産グラスボディ(サファイアクリスタル) 5.355ct原石
Sold out スリランカ産グラスボディ(サファイアクリスタル) 4.150ct原石
Sold out スリランカ産グラスボディ(サファイアクリスタル) 7.134ct原石
Sold out スリランカ産グラスボディ(サファイアクリスタル) 5.573ct原石
Sold out スリランカ産グラスボディ(サファイアクリスタル) 4.669ct原石
Sold out スリランカ産グラスボディ(サファイアクリスタル) 4.126ct原石
Sold out 合成アレキサンドライト 0.287ctルース
Sold out 《Limited to 15 Stones》Fluorite Gacha including 2 Koshu-Kiseki-Kiriko stones (normally 49,800 yen) with 1 CC fluorite stone as a bonus《Multiple Purchase Discount Available》
Sold out 《Limited to 15 Stones》Cordierite-Inclusive Cordierite Spinel Gacha, Equivalent to 59,800 Yen 《Bulk Purchase Discount Available》
Sold out デュモルチェライトインクォーツ 0.495ctルース
Sold out 【12562517掲載】スリランカ産非加熱スターサファイア 0.450ctルース
Sold out 【12562512掲載】スリランカ産非加熱スターサファイア 0.692ctルース
Sold out 【12562505掲載】モザンビーク産アクアマリン 0.888ctルース
Sold out マダガスカル産アイオライトサンストーン 0.311ctルース
Sold out マダガスカル産イエローサファイア 0.268ctルース
Sold out Big Gem Gacha 💎 including Dandelion Cut 15mm and Camellia Cut 19mm, normally 55,800 JPY《Multiple Purchase Discount Available》
Sold out アフガニスタン産インディゴライトトルマリン 1.729ctルース
Sold out メキシコ産ファイアオパール 1.104ct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 0.865ctルース
Sold out Limited 5 Stones: Synthetic Alexandrite Gacha (Princess Cut, 3.5-4.5mm) (Multi-Buy Discount Available)
Sold out ベトナム産非加熱シルキーピンクサファイア 0.178ctルース
Sold out タンザナイト 0.580ctルース
Sold out モスアゲート 0.795ctルース
Sold out 合成モアッサナイト 0.970ctルース
Sold out ブラジル産メデューサクォーツ(パライバクォーツ) 1.132ctルース
Sold out Australian black opal 0.232ct loose stone
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 [Sales end Thursday, April 30] Anime "Overlord" x KARATZ Jewelry Store Collaboration A3 Clear Poster
Sold out [Sales end on Thursday, April 30th] Anime "Overlord" x KARATZ Jewelry Store Collaboration - All 3 Types of Microfiber Cloths
Sold out [Sales end on Thursday, April 30] Anime "Overlord" x KARATZ Jewelry Store Collaboration Multi-Acrylic Stands (All 3 Types)
Sold out [Sales end on 4/30 (Thu)] Anime "Overlord" x KARATZ Jewelry Store Collaboration Random Acrylic Card (7 types)
Sold out [Sales End: Thursday, April 30] Anime "Overlord" x KARATZ Jewelry Store Collaboration Random Can Badge Collection (6 Types)
Sold out 【Sales end on Thursday, April 30th】Anime "Overlord" x Jewelry Specialty Store KARATZ Collaboration Big Acrylic Stand (Pre-order)
Sold out [Limited to 10 stones] Brazilian Scolite (average 3ct) [Multi-buy discount available]
Sold out 《Tucson Arrivals - Limited to 4 Stones》Canadian Eudialyte, approx. 2.5mm《Multiple Purchase Discount Available》
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 0.353ctルース
Sold out 《Limited to 20 stones》Demantoid Garnet Gacha, including Russian demantoid garnets, normally priced at 69,800 yen 《Multiple purchase discount 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 10 stones: Madagascar pink sapphire (heart-shaped, including padparadscha color, approximately 3 x 2.3 mm) [Multiple purchase discounts available]
Sold out Tanzanian UV Type Mint Garnet 0.440ct Loose Stone
Sold out 0.628ct Mozambican Rhodolite Garnet Loose Stone
Sold out 0.562ct Almandine Garnet Loose Stone from Mozambique
Sold out Mozambique Almandine Garnet 0.961ct Loose
Sold out Brazilian Pink Amethyst 2.545ct Loose Stone
Sold out Brazilian Color Change Amethyst 1.998ct Loose
Sold out Brazilian color-shift amethyst 1.085ct loose
Sold out 【12562100掲載】ブラジル産シトリン 1.852ct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.