Above ¥100,000

【9/28 22時販売】ノンオイルレッドベリル 0.200ctルース GIA Sale price¥168,000

【9/28 22時販売】ボリビア産フォスフォフィライト 0.436ctルース鑑別書 Sale price¥298,000

Brazilian particolor Paraiba tourmaline 0.26ct loose GIA Sale price¥598,000

Unheated Paraiba tourmaline from Brazil 0.050ct loose GIA (color change Paraiba tourmaline) Sale price¥148,000

Bicolor pink euclase from Brazil 3.210ct loose Japanese-German edition Sale price¥798,000

Watermelon tourmaline 44.201ct Ruth Japanese-German book Sale price¥398,000

Paudlettite 0.375ct loose Japanese-German book Sale price¥298,000

Particolor tourmaline 32.207ct loose (tricolor tourmaline) Sale price¥398,000

ロシア産デマントイドガーネット（ホーステール認む） 5.8mm/0.876ctルース

Russian demantoid garnet (horsetail recognized) 5.8mm/0.876ct loose Sale price¥258,000

Bangkacha sapphire (star sapphire) 69.655ct loose Sale price¥148,000

[Sold at 10 PM on September 7th] [Koshu Precious Stone Cut Glass] 18K Rose Quartz 15.964ct Necklace by Nikko Kan Sale price¥128,000

[Sold at 10 PM on September 19th] Blue Sapphire 4.0mm/0.314ct Loose Sale price¥112,800

フローレスダイヤモンド（H&C） 0.266ctルース(D, FL, 3Excellent H&C)

[On Sale at 10 PM on September 6th] Flawless Diamond (H&C) 4.0mm/0.266ct Loose (D, FL, 3 Excellent H&C) GIA & Chuhokan Sale price¥188,000

[On Sale at 10 PM on September 5th] Pt950 Myanmar Gray Spinel (Platinum Spinel) 5.5mm/0.685ct Black Diamond Ring Sale price¥128,000

Get a free uniform until September 30th! Limited to 200! SoftBank Hawks 20th Anniversary "Pure Gold Oval" Sale priceFrom ¥358,200

Top Quality: Benitoite 7 Stones and Diamond 6 Stones (H&C) Half Eternity Ring Set (2.0mm) Sale price¥158,000

Brazilian Paraiba Tourmaline Ring and Half Eternity Ring Set (1.2mm) Sale price¥188,000

Emerald 15.219ct loose Japanese-German book Sale price¥298,000

Bicolor Sphene 4.50ct loose Sale price¥258,000

【甲州貴石切子】特大スモーキークォーツ 108.336ctルース《コラボ》ワッペン付

[Koshu Precious Stone Kiriko] Extra large smoky quartz 108.336ct loose "Collaboration" with emblem Sale price¥128,000

Colombian Euclase 548.00ct rough stone Sale price¥198,000

Kunzite 50.260ct loose Sale price¥188,000

Diamond 0.618ct loose (I, I1, tree cut) Sale price¥128,000

[On sale at 10pm on September 6th] Russian emerald 0.249ct loose stone Sale price¥158,000

ロシア産デマントイドガーネット（ホーステール認む） 5.2mm/0.633ctルース

Russian demantoid garnet (horsetail recognized) 5.2mm/0.633ct loose Sale price¥198,000

Unheated sapphire 2.430ct loose GIA Sale price¥298,000

Tanzanite 41.690ct loose Sale price¥2,480,000

Brazilian Pink Imperial Topaz 2.794ct Loose Japanese-German Edition Sale price¥128,000

Peach benitoite 0.135ct loose Japanese-German book (orange/blue) Sale price¥158,000

Bicolor Benitoite 0.624ct Loose Japanese-German Edition Sale price¥188,000

[12559903] 2.991ct Brazilian Imperial Topaz Loose Stone Sale price¥158,000

[Available at 10 PM on August 24th] Cornflower Blue Sapphire 0.530ct Loose Stone AIGS Sale price¥128,000

Tanzanite 2.726ct loose Sale price¥110,000

Brazilian Pink Tourmaline 6.549ct Loose Stone (Elbaite Liddicoatite Tourmaline) Nikkeikan Sale price¥188,000

モザンビーク産パライバトルマリン 1.481ctルース（CuO:0.3%、MnO:4.3%）

Paraiba tourmaline from Mozambique 1.481ct loose (CuO:0.3%, MnO:4.3%) Sale price¥158,000

American Benitoite 0.296ct loose stone Sale price¥148,000

Brazilian Unheated Bicolor Paraiba Tourmaline 0.105ct Loose GIA Sale price¥198,000

Phosphophyllite rough stone (59.5 x 35.9 x 36 mm) Sale price¥298,000

Brazilian bicolor tourmaline 13.927ct loose stone Sale price¥198,000

Bulgarian green sphalerite 1.052ct loose Japanese-German edition Sale price¥128,000

Russian Demantoid Garnet (Horsetail certified) 4.6mm/0.464ct loose stone Sale price¥128,000

American oil-free red beryl 0.21ct loose GIA Sale price¥188,000

Myanmar Musgravite 0.351ct Loose Stone Japan-Germany Sale price¥188,000

Brazilian cat's eye emerald 4.070ct loose stone Sale price¥198,000

Myanmar Musgravite 0.214ct Loose Stone Nikko Kan Sale price¥258,000

Brazilian Watermelon Tourmaline 14.780ct Loose Stone (Bahia Color Tourmaline) Sale price¥128,000

Burmese Ruby 3.725ct Loose GIA & Chuho Sale price¥198,000

Brazilian Pink Euclase 1.259ct Loose Stone Japan-Germany Sale price¥3,980,000

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.