Sale

Brazilian Goshenite 0.771ct loose stone Sale price¥6,980

Brazilian Dolomite 4.070ct Loose Stone, Japan-Germany Mirror Sale price¥79,800

Brazilian Paraiba Tourmaline 0.821ct rough stone Sale price¥39,800

Colombian Trapiche Emerald 0.372ct Loose Sale price¥18,800

Russian rough diamond (sawable) 0.098ct loose Sale price¥22,800

Tanzanite from Tanzania 0.262ct loose stone Sale price¥8,800

Tanzania Bicolor Zoisite 0.397ct Loose Stone Sale price¥8,800

[Available 9/4 at 10 PM] 《16 Stones Limited》 Colombian Emerald Raw Stones (Average 0.35ct) 《Multiple Purchase Discount Available》 Sale price¥5,980

Zimbabwean Blue Apatite (UV type) 1.056ct loose stone Sale price¥9,800

ブラジル産パライバトルマリン 0.239ctルース（CuO:1.0%、MnO:3.9%）

Brazilian Alexandrite 0.239ct Loose Gemstone [Listed as 12564071] Sale price¥45,800

[Available 9/9 at 10 PM] [Color-Free] Pt900 Diamond 1.00ct V-Shape Ring Sale price¥128,000

【Available 9/9 at 10 PM】【Colori】Pt900 Opal 1.10ct Diamond 0.46ct Ring Sale price¥98,000

K18WG オーロラ天女・アコヤ真珠（アコヤパール）ダイヤモンドブローチ真科研鑑

[Available 9/5 at 10 PM] 18K White Gold Aurora Tennyo Akoya Pearl and Diamond Brooch, with Pearl Science Laboratory Certificate Sale price¥98,000

[Available 9/15, 10 PM] [Colorfry] Pt850 Cross-Shape Pearl Earrings with Appraisal Certificate Sale price¥18,800

[On Sale 9/14, 10:00 PM] [Colorifi] Pt900 Ruby 0.71ct / Diamond 0.24ct Ring with Appraisal Report Sale price¥98,000

[Available Sept 4, 10 PM] Brazilian Color-Shift Amethyst 2.649ct Loose Gemstone Sale price¥9,800

【Available from 10 PM on 9/4】 Cambodian Blue Zircon 1.173ct Loose Stone Sale price¥15,800

[Available 9/4 at 10 PM] Brazilian Elestial Amethyst 1.855ct Loose Stone Sale price¥8,800

[Available 9/4 at 10 PM] Ruby 0.411ct Loose Stone Sale price¥18,800

【9/4 10:00 PM Sale】Ruby 0.200ct Loose Stone Sale price¥12,800

[Available 9/4 at 10 PM] Ruby 0.141ct loose stone Sale price¥9,800

[Available 9/6 at 10 PM] Moonstone from Uva, Sri Lanka, 1.155ct loose stone Sale price¥18,800

[Available 9/6 at 10 PM] Moonstone from Uva, Sri Lanka, 1.418ct Loose Gemstone Sale price¥22,800

【9/14 10:00 PM Release】 Sri Lankan Uva Moonstone 1.172ct Loose Stone Sale price¥15,800

【Available 9/14 at 10 PM】 Sri Lankan Uva Moonstone 0.872ct Loose Stone Sale price¥14,800

[Available 9/14, 10 PM] Moonstone from Uva, Sri Lanka, 1.196ct Loose Gemstone Sale price¥16,800

[Available 9/10, 10 PM] 0.837ct Sri Lankan Moonstone Loose Stone Sale price¥12,800

[On sale 9/6 at 10 PM] Kochi Prefecture Peach Coral 13.010ct Loose Stone Sale price¥12,800

[Available 9/6 at 10:00 PM] Kochi Prefecture Peach Coral 16.753ct Loose Stone Sale price¥24,800

【Available 9/6 at 10 PM】 Tanzanian Windsor Sapphire (Purple Sapphire) 0.277ct Loose Gemstone Sale price¥12,800

タンザニア産ウィンザーサファイア（カラーチェンジサファイア） 0.261ctルース

【9/12 22:00 Release】 Tanzanian Windsor Sapphire (Color Change Sapphire) 0.261ct Loose Gemstone Sale price¥9,800

【9/6 10PM On Sale】Pakistan Oil-in-Quartz 0.281ct Loose Gemstone Sale price¥4,980

[9/7 22:00 Release] Pakistani Oil-in-Quartz 0.505ct Loose Stone Sale price¥4,980

ブラジル産レインボーアクアマリン（イリデッセンスアクアマリン） 1.358ctルース

[On sale 9/6 at 22:00] Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 1.358ct Loose Gemstone Sale price¥12,800

ブラジル産レインボーアクアマリン（イリデッセンスアクアマリン） 1.574ctルース

[Available 9/7 at 10 PM] Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 1.574ct Loose Stone Sale price¥14,800

ブラジル産レインボーアクアマリン（イリデッセンスアクアマリン） 1.507ctルース

【Available 9/10 at 10 PM】 Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 1.507ct Loose Stone Sale price¥12,800

ブラジル産レインボーアクアマリン（イリデッセンスアクアマリン） 1.930ctルース

[Available 9/10 at 10 PM] Brazilian Rainbow Aquamarine (Iridescence Aquamarine) 1.930ct Loose Stone Sale price¥18,800

【9/7 10 PM Release】Tanzanian Silky Pink Spinel 0.219ct Loose Gemstone Sale price¥8,800

[On sale 9/7 at 10 PM] Tanzanian Silky Pink Spinel 0.218ct Loose Stone Sale price¥8,800

[Available 9/7 at 10 PM] Mahenge Spinel (Pink Spinel) from Tanzania, 0.386ct loose stone Sale price¥15,800

[9/7 10 PM Sale] Brazilian Sky Blue Topaz 3.437ct Loose Stone Sale price¥9,800

【Available Sept 10, 10:00 PM】 Tanzanian Bicolor Grossular Garnet 0.869ct Loose Stone Sale price¥25,800

[9/7 10:00 PM Sale] Tanzania Bicolor Grossular Garnet 0.433ct Loose Stone Sale price¥15,800

【Available 9/7 at 10 PM】 Tanzanian Bicolor Grossular Garnet 0.596ct Loose Gemstone Sale price¥14,800

[9/7 22:00 Release] Brazilian Bicolor Tourmaline 1.753ct Loose Stone Sale price¥29,800

【9/7 10 PM Release】Indian Parrot Chrysoberyl 0.288ct Loose Stone Sale price¥12,800

[Available 9/7 at 10 PM] Indian Parrot Chrysoberyl 0.630ct Loose Gemstone Sale price¥18,800

ブラジル産非加熱ピンクインペリアルトパーズ（シェリーピンク） 0.496ctルース

[9/7 10 PM Release] Brazilian Unheated Imperial Topaz (Sherry Color) 0.496ct Loose Gemstone Sale price¥29,800

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.