¥5,000 - ¥10,000

[Available at 10 PM on December 13th] Limited to 9 stones: Australian Black Opal (including semi-black opal) Loose Stone Gacha (Includes 1 bonus white opal) [Multiple purchase discounts available] Sale price¥5,980

[On sale until 10 PM] Limited to 10 stones: Yamamoto Cut Gacha, featuring carnelian, lemon quartz, rock crystal, and more. Discounts available for multiple purchases. Sale price¥7,980

[12/13 10 PM Sale] {Limited to 13 Stones} Tourmaline Gacha: Including Indigolite Tourmaline worth ¥50,000 and Rubellite worth ¥60,000. Plus, get one Canary Yellow Tourmaline. {Multiple Purchase Discounts Available} Sale price¥5,980

December Special Campaign: Limited to 14 stones. December birthstone: Tanzanite, loose stone (5x7mm, oval cut). Multiple purchase discounts available. Sale price¥8,800

アンデシン・ラブラドライト（通称名レインボームーンストーン） 0.177ctルース

Andesine Labradorite (commonly known as Rainbow Moonstone) 0.177ct loose Sale price¥8,800

Mint green sapphire 0.348ct loose Sale price¥9,800

Bicolor sapphire from Madagascar 0.252ct loose Sale price¥9,800

Bicolor sapphire from Madagascar 0.198ct loose Sale price¥7,980

Bicolor sapphire from Madagascar 0.212ct loose Sale price¥7,980

Yellow sapphire from Sri Lanka 0.222ct loose Sale price¥9,800

Dendritic Agate 2.964ct loose Sale price¥8,800

Diaspore from Türkiye 0.636ct loose Sale price¥9,800

Chinese aragonite 36.409ct loose with patch Sale price¥5,980

Brazilian Trapichea Amethyst 24.772ct loose with patch Sale price¥6,980

Unheated silky pink sapphire from Vietnam 0.197ct loose Sale price¥8,800

Unheated silky pink sapphire from Vietnam 0.247ct loose Sale price¥8,800

Brazilian Medusa Quartz (Paraiba Quartz) 10.298ct loose Sale price¥7,980

Brazilian Medusa Quartz (Paraiba Quartz) 5.809ct loose Sale price¥6,980

Brazilian dumortierite in quartz 4.592ct loose Sale price¥9,800

[12/14 22:00 Sale] Sinhalite from Sri Lanka 0.434ct Loose Stone Sale price¥8,800

[12/7 22:00] Brazilian Dumortierite in Quartz 16.250ct Loose Stone Sale price¥9,800

[12/14 22:00] American Peridot 5.1mm/0.573ct Loose Stone Sale price¥9,800

[12/14 22:00 Sale] Madagascar Iolite 0.644ct Loose Stone Sale price¥7,980

[12/14 22:00 Sale] Sinhalite from Sri Lanka 0.456ct Loose Stone Sale price¥9,800

[12/14 22:00] Brazilian Yellow Beryl 0.913ct Loose Stone Sale price¥8,800

[12/14 22:00 Sale] Tanzanian Chrome Tourmaline 0.164ct Loose Stone Sale price¥9,800

[On Sale at 10 PM on December 7th] Madagascar Andesine Labradorite Moonstone (also known as Rainbow Moonstone) 0.178ct Loose Stone Sale price¥9,800

[12/7 22:00] American Peridot 0.385ct Loose Stone Sale price¥8,800

[12/9 22:00] Brazilian Lavender Quartz (Scorolite) 0.994ct Loose Stone Sale price¥8,800

[12/9 22:00 Sale] Sinhalite from Sri Lanka 0.658ct Loose Stone Sale price¥9,800

[12/12 22:00 Sale] Synthetic Quartz 0.430ct Loose Stone (Synthetic Green Quartz) Sale price¥6,980

[12/10 22:00 Sale] Pakistani Ludwigite Peridot 0.609ct Loose Stone Sale price¥6,980

[12/10 22:00 Sale] Indian Moonstone 6.1mm/0.878ct Loose Stone (Rose Cut) Sale price¥8,800

[12/14 22:00] Brazilian Pink Tourmaline 5.0mm/0.484ct Loose Stone (Rose Cut) Sale price¥8,800

[12/12 22:00 Sale] Synthetic Opal 0.856ct Loose (Synthetic Water Opal) Sale price¥8,800

Dendritic Agate 31.019ct Ruth Japanese/German Sale price¥6,980

Australian boulder opal 1.730ct loose Sale price¥8,800

Australian boulder opal 6.980ct loose Sale price¥6,980

マダガスカル産アンデシン・ラブラドライト（通称名レインボームーンストーン） 0.696ctルース

Andesine Labradorite from Madagascar (commonly known as Rainbow Moonstone) 0.696ct loose Sale price¥6,980

Brazilian Medusa Quartz (Paraiba Quartz) 3.919ct loose Sale price¥6,980

Oregon Sunstone 1.157ct loose Sale price¥8,800

Petalite 2.858ct loose Sale price¥7,980

Paraiba tourmaline from Mozambique 0.207ct loose Sale price¥9,800

Mexican Fire Opal 4.5mm/0.244ct Loose Sale price¥9,800

Diamond 0.052ct loose (trapeze cut, VS class equivalent) Sale price¥6,980

Colombian emerald cat's eye 0.110ct loose Sale price¥9,800

Paraiba tourmaline from Mozambique 0.229ct loose Sale price¥9,800

[12/16 22:00] Brazilian Rose Quartz 1.848ct Loose Stone Sale price¥9,800

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.