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coming soon [Available at 10:00 PM on December 10, 2025] Adult Sebon Star Pendant Silver Model (SV925)
Sold out 【お子様限定】宝石磨きに挑戦してみよう「自分で出来る原石磨きセット」(フローライト・宝石アイシングクッキー付き)
coming soon [Available at 10:00 PM on December 10, 2025] Adult Sebonstar Ring Silver Model (SV925)
Sold out 宝石研磨に挑戦してみよう「自分で出来る原石磨きセット」(中級者向け:アンデシン)
Sold out [Jeweler's tools] 4-piece set including loupe (10x magnification), tweezers, and 2 loose stones
Sold out 「起源がわかる 宝石大全」初版&宝石小瓶 2点セット
Sold out 【売り切れ】カラッツオリジナル鑑別書用アルバム・ルース1個[ケン氏カットのレアストーン] - KARATZ STORE|カラッツSTORE
Sold out Adult Sebon Star 2nd Edition Pendant Charmy Silver Model (SV925 & Gold Plated)
coming soon [Available at 10:00 PM on December 10, 2025] Adult Sebon Star Adjuster Charm (Not available for individual purchase)
Sold out Let's try polishing gemstones with the "Do-it-yourself gemstone polishing kit" (for intermediate users: Andesine Labradorite from Madagascar)
Sold out Let's try polishing gemstones with the "Do-it-yourself gemstone polishing kit" (for intermediate users: Illusion Sunstone)
Sold out [Jeweler's Tools] Collection set of 24 loose cases, 3 loose cases [cut by Mr. KEN, worth 8,000 yen]
Sold out 宝石商の道具「チェルシーカラーフィルター&二色鏡」宝石3石&説明書付き」
Sold out [Sold out] TV anime "Tokyo Ghoul" x KARATZ collaboration Kaneki Rinkaku image ring and pendant top | Silver (SV925)
Sold out Adult Sebonstar Pendant Precious Model (Pt950, K18YG, K18PG)
Sold out [Jeweler's Tools] 2-piece loose tweezers set with stopper (for small jewelry)
Sold out 【再入荷】鉱物標本スタンドとサンストーンorアイオライトの2点セット - KARATZ STORE|カラッツSTORE
Sold out 1 Brazilian Euclase rough stone (discount available for multiple purchases)
Sold out [Sales End on November 15th] "Bungo to Alchemist" x KARATZ Collaboration Jewelry Bungo Ring [Dazai Osamu Model] {Almandine Garnet, Yellow Diamond}
Sold out [Sold Out] TV Anime "Tokyo Ghoul" x KARATZ Collaboration Touka Wakame Necklace
Sold out [Sold out] TV anime "Tokyo Ghoul" x KARATZ collaboration holographic badges featuring newly drawn illustrations (2 types)
Sold out 【大人用】宝石磨きに挑戦してみよう「自分で出来る原石磨きセット」(初心者向け:バイカラーフローライト)・ボルダーオパール付※原石磨きコンテスト対象 ※
Sold out 宝石研磨に挑戦してみよう「自分で出来る原石磨きセット」(中級者向け:ラブラドライト)
Sold out [Sales end on Sunday, August 31st] TV anime "Magical Girls and Evil Were Once Enemies" x KARATZ collaboration heart badge featuring newly drawn illustrations
Sold out Diamond 2mm (VS class, DG color, round cut, melee diamond 2.0mm) 1 loose stone {Multiple purchase discounts available}
Sold out [Sold out] TV anime "Tokyo Ghoul" x KARATZ collaboration: 3-piece acrylic keychain set featuring newly drawn illustrations (2 types)
Sold out グランディディエライト原石 1石
Sold out [Sales End on November 15th] "Bungo to Alchemist" x KARATZ Collaboration Jewelry Bungo Ring [Dazai Osamu Model] {Almandine Garnet, Yellow Diamond}
Sold out 北海道産ロードクロサイト1石ルース(6×4,オーバル)
Sold out [Sales end on Sunday, August 31st] TV anime "A long time ago, magical girls and evil were enemies." x KARATZ collaboration acrylic coaster featuring newly drawn illustrations
Sold out [Sales end on Sunday, August 31st] TV anime "A long time ago, magical girls and evil were enemies." x KARATZ collaboration acrylic keychain featuring newly drawn illustrations
Sold out Let's try the gem mining experience "Do-it-yourself gem excavation experience set" 《7 types of gems》
Sold out [Sales End on Sunday, August 31st] TV Anime "Blue Lock" x KARATZ Collaboration Chain Ring
Sold out Adult Sebonstar Ring Precious Model (Pt950, K18YG, K18PG)
Sold out アイスブルーカラーの合成モアッサナイト1石ルース(5mm,アイスブルー)
Sold out Dragon Garnet 1 stone (3.0mm, round cut)《Discount available for multiple purchases》
Sold out 1 stone of Hokkaido rhodochrosite (5 x 3 mm, pear-shaped cut)《Discount available for multiple purchases》
Sold out クリソベリルキャッツアイ 1石(2月新誕生石)
Sold out 「決定版 アンカットダイヤモンド」サイン入り初版本 &ダイヤモンド原石(グリーン蛍光)2点セット
Sold out [Sakura Shape Jewelry] Hanakoromo (Ring/Silver)
Sold out アイオライト原石・ルース 2石セット - カラッツSTORE

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.