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[Sale on June 25th at 10 PM] [Colorful] K18WG Zircon Pendant Top (Necklace Top) with Appraisal Report Sale price¥59,800

K18WG クロムトルマリン 0.70ctct・サファイア0.30ctペンダントトップ（ネックレストップ）鑑別書

[On sale 10 PM on 6/14] [Colorful] K18WG Chrome Tourmaline 0.70ct / Sapphire 0.30ct Pendant Top (Necklace Top) with appraisal Sale price¥79,800

【Available May 30th at 10 PM】Sugilite from South Africa, 0.786 ct Loose Stone Sale price¥12,800

[Sale on May 30th at 10 PM] Synthetic Rutile 6.2mm/1.594ct Loose Stone Sale price¥15,800

[Sales start May 31, 10 PM JST] Brazilian Marcasite in Quartz Loose Stone 6.670ct Sale price¥25,800

[On sale May 30th at 10 PM] Mongolian Andesine 0.464ct Loose Stone Sale price¥9,800

[On Sale May 30th at 10 PM] Malawi Moonstone 1.475ct Loose Gemstone Sale price¥9,800

[On sale May 31st at 10 PM] Malawi Blue Zircon (Malawi Zircon) 1.833ct Loose Sale price¥98,000

[On sale May 31st at 10 PM] Malawi Bicolor Zircon (Malawi Zircon) 0.985 ct Loose Sale price¥39,800

【Sales start May 30th, 10 PM JST】 Malawi Moonstone 2.601ct Loose Sale price¥5,980

[On sale May 31 at 10 PM] Myanmar Musgravite 0.351ct Loose Gemstone, Japan-Germany Sale price¥128,000

インターナリーフローレスダイヤモンド 0.320ctルース(G, IF, 3Excellent)

[On Sale May 31st at 10 PM] Internally Flawless Diamond 4.4mm/0.320ct Loose (G, IF, 3Excellent) GIA Sale price¥89,800

[On sale 6/5 at 10 PM] Russian Demantoid Garnet (horsetail inclusion visible) 5.8mm/0.876ct Loose Stone with Appraisal Report Sale price¥258,000

パープルダイヤモンド 0.048ctルース(FANCY VIVID PINK PURPLE, SI-1)

[On sale June 5th at 10 PM] Purple Diamond 0.048ct Loose Stone (FANCY VIVID PINK PURPLE, SI-1) CGL Sale price¥198,000

ピンクダイヤモンド 0.030ctルース(FANCY PURPLISH PINK, SI-1)

[On Sale 6/5 at 10 PM] Pink Diamond 1.95mm/0.030ct Loose Stone (FANCY PURPLISH PINK, SI-1) Central Gem Lab Sale price¥59,800

[Sale on June 5th at 10 PM] Sri Lankan Zircon Cat's Eye 2.087ct Loose Stone with Appraisal Sale price¥39,800

ブラジル産ティンカーベルクォーツ（ピンクファイヤークォーツ） 7.682ctルース

[On sale 10 PM, June 6] Brazil Tinkerbell Quartz (Pink Fire Quartz) 7.682ct Loose Stone Sale price¥15,800

[Sale at 10 PM on June 6] Malawi Moonstone 1.661ct Loose Stone Sale price¥12,800

[On sale June 7th at 10 PM] Malawi Moonstone 1.792ct Loose Gemstone Sale price¥15,800

[On sale June 13th, 10 PM JST] Malawi Moonstone 2.055ct Loose Stone Sale price¥16,800

[Sales start June 12th, 10 PM] Malawi Moonstone (Malawi Moonstone) 2.085ct Loose Gemstone Sale price¥16,800

[On sale June 12th at 10 PM] Malawi Moonstone 2.144ct Loose Sale price¥15,800

[On sale June 6th at 10 PM] Malawi Moonstone 2.201ct Loose Stone Sale price¥15,800

[Sale on June 6 at 10 PM] Malawi Moonstone (Malawi Moonstone) 2.209 ct loose stone Sale price¥15,800

[On sale June 6, 10 PM JST] Malawi Moonstone 2.233ct Loose Stone Sale price¥15,800

[On sale June 6th at 10 PM] Malawi Moonstone (Malawi Moonstone) 2.428 ct Loose Sale price¥18,800

[On sale June 5th at 10 PM] Russian Demantoid Garnet (Horsetail inclusion confirmed) 6.9mm/1.589ct Loose Stone with Appraisal Report Sale price¥458,000

[Sales start June 5th, 10 PM] Russian Demantoid Garnet (horsetail inclusion visible) 6.8mm/1.366ct Loose Stone with Appraisal Report Sale price¥398,000

[On sale June 6th at 10 PM] Brazilian Rubellite 2.793ct Loose Stone with Certificate Sale price¥59,800

[Sale on 6/6 at 10 PM JST] Peruvian Gem Silica (Chrysocolla Chalcedony) 2.556ct Loose Stone with Japan-Germany Gemstone Report Sale price¥15,800

[On sale June 6th at 10 PM JST] Peruvian Gem Silica (Chrysocolla Chalcedony) 3.210ct Loose Stone, GIA & JGGL Certified Sale price¥19,800

[On sale June 6th, 10 PM JST] Peruvian Gem Silica (Chrysocolla Chalcedony) 4.098ct Loose Stone with Japan-Germany Gemological Report Sale price¥24,800

[On sale June 6th, 10 PM] Nepal Kyanite 2.906ct Loose Stone with Certificate Sale price¥19,800

[On Sale June 8th, 10 PM JST] India, Orissa Origin Alexandrite 0.715ct Loose Stone with Certification Sale price¥18,800

[On sale June 7th at 10 PM] India Odisha Alexandrite 0.759ct Loose Gemstone with Identification Report Sale price¥22,800

[Sale 10 PM JST, June 7] Alexandrite from Odisha, India 0.764 ct Loose Stone with Certificate Sale price¥29,800

[Sale on June 6 at 10 PM] Pyrite in Emerald from Chivor Mine, Colombia, 4.221 ct Loose Stone Sale price¥98,000

[On sale June 7, 10 PM] Untreated Blue Sapphire 2.430ct Loose Gemstone GIA Sale price¥258,000

[On sale June 7th at 10 PM] Colombian Trapiche Emerald, 1.874ct Loose Stone, with Identification Report Sale price¥69,800

[On Sale June 7, 10 PM] 0.210ct Untreated Colombian Emerald Loose Stone, GIA Certified Sale price¥228,000

[On sale June 7th at 10 PM] Madagascar Padparadscha Sapphire 3.9mm/0.336ct Loose Stone DGL Certified Sale price¥45,800

[On sale June 7th at 10 PM] Madagascar Padparadscha Sapphire 3.9mm/0.282ct Loose Stone, DGL Certified Sale price¥43,800

[Sale on June 7 at 10 PM] Nigerian Cobaltian Garnet 0.154ct Loose Gemstone with Certificate Sale price¥24,800

【On sale June 7, 10 PM JST】Nigerian Cobalt Hauyne 0.157ct Loose with Certificate Sale price¥22,800

[On sale June 7th, 10 PM] Nigerian Cobalt-bearing Gahnite, 0.158ct loose stone with gemological report Sale price¥22,800

Pt900 ブルーサファイア 1.05ct・ダイヤモンド0.05ctリング鑑別書

[On sale June 20th at 10 PM] Colorful Pt900 Blue Sapphire 1.05ct/Diamond 0.05ct Ring with Appraisal Report Sale price¥98,000

Pt900 ブルーサファイア 2.38ct・ダイヤモンド0.20ctリング鑑別書

[On sale 6/25 10 PM] [COLORFUL] Pt900 Blue Sapphire 2.38ct and Diamond 0.20ct Ring with Appraisal Report Sale price¥198,000

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.