Ruth

【12/6 22時販売】《13石限定》さくらインカットやダンデライオンカットを含むスピネルガチャ1石ルース《複数購入割引有》 Sale price¥4,980

【12559635掲載】ドミニカ共和国産コンクパール（火焔模様有り） 0.207ctルース

【12/6 22時販売】ドミニカ共和国産コンクパール（火焔模様有り） 0.207ctルース（フラミンゴカラー） Sale price¥29,800

【12/6 22時販売】ジンバブエ産ユークレース 4.3mm/0.397ctルース Sale price¥98,000

【12560354掲載】ジンバブエ産バイカラーユークレース 0.206ctルース

【12/6 22時販売】ジンバブエ産バイカラーユークレース 0.206ctルース Sale price¥45,800

【12/6 22時販売】ブラジル産ブルートパーズキャッツアイ 3.538ctルース Sale price¥12,800

【12/6 22時販売】インドネシア産パラサイティックペリドット 0.260ctルース Sale price¥98,000

【12/6 22時販売】マダガスカル産バイカラーサファイア 0.292ctルース Sale price¥22,800

【12/6 時販売】モザンビーク産ルビー 0.252ctルース Sale price¥18,800

[12559779] Ruby 0.176ct loose stone Sale price¥18,800

【12/6 22時販売】インドネシア産パラサイティックペリドット 3.8mm/0.267ctルース Sale price¥128,000

Limited to 14 stones: Brazilian dendritic quartz loose stone (average 7 carats) Multiple purchase discounts available Sale price¥2,980

Rainbow Garnet (Andradite Garnet) 2.365ct Loose Stone from Tenkawa Village, Nara Prefecture Sale price¥14,800

Rainbow Garnet (Andradite Garnet) 1.488ct Loose Stone from Tenkawa Village, Nara Prefecture Sale price¥15,800

Rainbow Garnet (Andradite Garnet) 0.771ct Loose Stone from Tenkawa Village, Nara Prefecture Sale price¥15,800

[12561489] Dumortierite in Quartz 16.250ct Loose Stone Sale price¥9,800

[12561482] Dumortierite in Quartz 5.830ct Loose Stone Sale price¥18,800

[12561472] Mexican egg-in opal 0.381ct loose stone Sale price¥18,800

[12561466] Andesine Labradorite Moonstone (also known as Rainbow Moonstone) 0.178ct Loose Stone Sale price¥9,800

[12561465] Zoisite 1.312ct Loose Stone Sale price¥18,800

[12561464] Tanzanite 0.436ct loose stone Sale price¥8,800

[12561463] Tanzanite 0.467ct loose stone Sale price¥9,800

[12561462] Rubellite 0.332ct loose stone Sale price¥12,800

[12561461] Peridot 0.385ct loose stone Sale price¥8,800

[12561455] Yellow sapphire 0.508ct loose stone Sale price¥18,800

[12561453] Yellow sapphire 0.343ct loose stone Sale price¥12,800

[12/6 22:00] Mexican Fire Agate 17.936ct Loose Stone Sale price¥49,800

[12/6 22:00] Mexican Fire Agate 14.193ct Loose Stone Sale price¥79,800

[12/6 22:00] Mexican Fire Agate 10.683ct Loose Stone Sale price¥59,800

[12/6 22:00] Mexican Fire Agate 8.033ct Loose Stone Sale price¥39,800

[12/6 22:00] Myanmar Spinel in Marble 61.204ct Loose Stone Sale price¥12,800

[12/6 22:00 Sale] Blue Coral (75.469ct) Loose Stone Sale price¥12,800

[12/6 22:00] Canadian Ammolite 17.043ct Loose Stone Sale price¥49,800

[12/6 22:00] Colombian Cat's Eye Emerald 1.121ct Loose Sale price¥49,800

[12/6 22:00] Colombian Cat's Eye Emerald 0.959ct Loose Sale price¥45,800

[On Sale at 10 PM on December 5th] YAG (Yttrium Aluminum Garnet) 6.5mm/1.548ct Loose Stone Sale price¥12,800

インターナリーフローレスダイヤモンド（H&C） 4.45mm/0.305ctルース(F, IF, 3Excellent H&C) GIA&中宝

[Sale Date: 12/5 10 PM] Internally Flawless Diamond (H&C) 4.45mm/0.305ct Loose (F, IF, 3 Excellent H&C) Sale price¥98,000

[12/5 22:00 Sale] Black Star Sapphire 1.410ct Loose Sale price¥9,800

Limited to 14 stones: Beryllium-heated sapphire (3.5mm, KEN cut) - 1 loose stone. Discounts available for multiple purchases. Sale price¥1,580

[Sale ends 12/5 at 10 PM] December Special Campaign! Limited to 14 stones. December Birthstone: Tanzanite, 1 loose stone (5x7mm, oval cut). Multiple purchase discounts available. Sale price¥8,800

【さくらインカット】マダガスカル産アパタイト 7.9mm/1.537ct《コラボ》ルースワッペン

[Sale starts at 10 PM on December 5th] [Sakura In-Cut] Madagascar Green Apatite 7.9mm/1.537ct [Collaboration] Loose Stone with Patch Sale price¥45,800

[12/5 22:00] Sri Lankan Triple Star Sapphire 2.057ct Loose Sale price¥88,000

[Rouge cut] Almandine garnet 2.090ct loose Sale price¥8,800

[Rouge cut] Almandine garnet 2.076ct loose Sale price¥8,800

【甲州貴石切子plusthree】パイライトインクォーツ 12.164ctルースワッペン付

[Koshu precious stone Kiriko plusthree] Pyrite in quartz 12.164ct loose with patch Sale price¥25,800

[Koshu Precious Stone Kiriko] Morganite 14.931ct《Collaboration》Loose with emblem Sale price¥79,800

Australian opal 0.286ct loose Sale price¥5,980

Blue zircon 0.397ct loose stone Sale price¥6,980

Blue zircon 0.322ct loose stone Sale price¥5,980

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.