Sale

[10/14 10:00 PM Release] Vietnamese Aquamarine 0.339ct Loose Stone Sale price¥9,800

[Oct 8, 10 PM Release] Brazilian Color-Shift Amethyst 7.7mm/1.607ct Loose Stone Sale price¥9,800

[Available Oct 5, 10:00 PM] Malawi Moonstone 1.640ct Loose Stone Sale price¥9,800

[On sale 10/8 at 22:00] Malawi Moonstone 2.121ct Loose Stone Sale price¥12,800

[10/5 10 PM Sale] Malawi Moonstone 1.886ct Loose Stone Sale price¥11,800

Authentic Gem Encyclopedia 3D Stickers Vol. 1: The Big Five Gems Sale price¥660

[Deadline: 9/5 (Sat) 10 AM: Lottery Sale_11] Sri Lankan Blue Spinel 3.419ct Loose Stone with Identification Report Sale price¥158,000

[Deadline: Sat, Sep 5, 10:00 AM: Lottery Sale_09] Sri Lankan Unheated Color-Change Sapphire 1.170ct Loose Stone, GIA certified Sale price¥188,000

[Item 12564511] Russian Alexandrite 0.103ct Loose Stone Sale price¥128,000

Royal Blue Sapphire 0.530ct Loose Stone Sale price¥69,800

[Item 12561430] Unheated Pigeon Blood Ruby 0.510ct Loose Stone Sale price¥89,800

[Item #22602735] [Colorifi] Pt900 Ice Blue Diamond (Treated) 0.24ct Diamond Ring with Appraisal Report Sale price¥89,800

Pt900 カラーチェンジサファイア0.446ct ダイヤモンド0.12ctリング鑑別書

[On sale 8/31 at 10 PM] [Colori] Pt900 Color-Change Sapphire 0.446ct Diamond 0.12ct Ring with Identification Report Sale price¥79,800

Pt900 スピネル 0.35ct・ダイヤモンド0.09ctペンダントトップ（ネックレストップ）鑑別書

[Item No. 22602792] [Colorify] Pt900 Spinel 0.35ct / Diamond 0.09ct Pendant Top (Necklace Top) with Appraisal Report Sale price¥39,800

[Listing 12556682] Zambian Emerald 0.202ct Loose Stone Sale price¥15,800

Brazilian Paraiba Tourmaline (Batalha Mine) Gacha 💎 Usually ¥45,800 With sorting, includes unheated. 《Multiple purchase discount available》 Sale price¥15,800

[Item 22602770] K18 Imperial Topaz Ring with Appraisal Report Sale price¥128,000

K18WG ダイヤモンド 0.5ct ペンダントトップ（ネックレストップ）鑑別書

[Item 22602774] [Color-Full] K18WG 0.5ct Diamond Pendant Top (Necklace Top) with Appraisal Report Sale price¥35,800

[Item 12563638] Tanzanian Bicolor Grossular Garnet 0.904ct Loose Stone Sale price¥25,800

[12564298] Phenakite from Malyshevo, Russia, 0.712ct Loose Gemstone Sale price¥22,800

[Item 12564299] Phenakite from Malyshevo, Russia, 0.635ct loose stone Sale price¥22,800

[12564313 listed] Spanish Pink Cobalt Calcite 0.360ct Loose Stone Sale price¥25,800

[Item 12564350] Ethiopian Sunstone 1.228ct Loose Gemstone Sale price¥18,800

【9/4 10 PM Release】《Limited to 5 stones》Pyrite in Afghanite, approx. 2ct each《Multi-buy discount available》 Sale price¥3,980

Myanmar Star Peridot 3.644ct Loose Stone Sale price¥29,800

[Available 9/27 at 10 PM] Madagascar Andesine-Labradorite (Common name: Blue Moonstone) 4.518ct Loose Stone Sale price¥29,800

[Deadline 8/29 | Lottery Sale] Brazilian Indicolite Tourmaline 2.587ct Loose Stone, with NGL Certificate Sale price¥98,000

[9/14 (Mon) 10:00 AM Deadline: Lottery Sale_08] Unheated Pigeon Blood Ruby 0.270ct Loose Stone AIGS Sale price¥48,800

[Available 9/30 at 10:00 PM] Brazilian Elestial Amethyst 3.684ct Loose Gemstone Sale price¥8,800

[10/2 10 PM Release] Brazilian Ametrine 16.565ct Loose Gemstone Sale price¥29,800

[On sale 9/30 at 10 PM] Bolivian Ametrine 4.815ct Loose Stone Sale price¥12,800

[10/2 10 PM Sale] Bolivian Ametrine 4.234ct Loose Stone Sale price¥18,800

[Available Oct 2, 10:00 PM] Bolivian Ametrine 2.680ct Loose Stone Sale price¥12,800

[On sale 9/26 at 10 PM] Mexican Fire Opal 0.593ct Loose Stone Sale price¥11,800

[On sale 9/30 at 22:00] Malawi Moonstone 1.388ct Loose Stone Sale price¥8,800

[On sale 10/5 at 10 PM] Malawi Moonstone (Malawi Moonstone) 2.639ct Loose Gemstone Sale price¥15,800

[Available 9/26 at 10 PM] Malawi Moonstone Loose Gemstone 1.966ct Sale price¥11,800

[9/26 10:00 PM Release] Malawi Moonstone 2.340ct Loose Stone Sale price¥14,800

[Available 9/26 at 10 PM] Malawi Moonstone Loose Gemstone, 2.229ct Sale price¥9,800

[Available 9/26 at 10 PM] Picture Agate 8.321ct Loose Stone Sale price¥9,800

[Available 9/30 at 10 PM] Nepal Kyanite 1.216ct Loose Gemstone (Royal Blue Color) Sale price¥15,800

[9/27 10:00 PM Release] Oregon Sunstone (USA) 6.9mm/1.093ct Loose Gemstone Sale price¥29,800

[Available 9/27 at 10 PM] Oregon Sunstone 3.492ct Loose Gemstone Sale price¥55,800

[9/27 10:00 PM Release] Oregon Sunstone (USA) 6.9mm/1.094ct Loose Gemstone Sale price¥39,800

[9/27 10:00 PM Release] Colombian Emerald 0.079ct Loose Stone Sale price¥8,800

[9/27 10:00 PM Release] Colombian Emerald 0.121ct Loose Stone Sale price¥15,800

[9/27 10 PM Sale] Colombian Emerald 0.148ct Loose Stone Sale price¥29,800

[Available 10/7, 10:00 PM] Colombian Emerald 0.145ct Loose Stone Sale price¥35,800

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.