Australian Made

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

[12/23 22:00] Australian Black Opal 2.736ct Loose Sale price¥98,000

[12/23 22:00] Australian White Opal 4.170ct Loose Sale price¥69,800

[12561695] Australian White Opal 1.928ct Loose Sale price¥39,800

Sold out

[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]

Australian boulder opal 4.470ct loose Sale price¥25,800

Australian opal 0.286ct loose Sale price¥5,980

Australian boulder opal 3.695ct loose Sale price¥14,800

Australian boulder opal 2.470ct loose Sale price¥7,980

[11/18 22:00 Sale] Australian Prehnite 1.705ct Loose Stone Sale price¥9,800

[11/18 22:00 Sale] Australian Prehnite 1.691ct Loose Stone Sale price¥9,800

Wood opal 24.319ct loose Sale price¥45,800

[11/2 22:00 Sale] Australian Boulder Opal 3.122ct Loose Sale price¥29,800

[11/7 22:00] Australian Prehnite 3.751ct Loose Stone Sale price¥9,800

Prehnite 5.3mm/0.469ct loose Sale price¥3,980

Prehnite 5.6mm/0.565ct loose Sale price¥3,980

Australian boulder opal 1.457ct loose stone Sale price¥9,800

Australian Prehnite 1.758ct loose stone Sale price¥9,800

Limited to 9 stones: 1 loose Australian opal (faceted cut) [Multiple purchase discounts available] Sale price¥3,980

Australian boulder opal 0.874ct loose Sale price¥3,980

Australian boulder opal 1.156ct loose Sale price¥3,980

Australian boulder opal 1.173ct loose Sale price¥5,980

Australian boulder opal 0.982ct loose Sale price¥6,980

Australian Opal 0.374ct Loose Sale price¥6,980

Australian Prehnite 0.707ct loose stone Sale price¥6,980

Australian boulder opal 1.868ct loose Sale price¥18,800

Australian boulder opal 1.675ct loose Sale price¥14,800

Australian boulder opal 28.880ct loose Sale price¥59,800

Prehnite 3.870ct loose Sale price¥3,980

Playnight 3.085ct loose Sale price¥3,980

Prehnite 3.874ct loose Sale price¥3,980

Australian boulder opal 9.120ct loose Sale price¥98,000

Australian opal 14.837ct loose Sale price¥98,000

Opal 6.560ct loose Sale price¥39,800

1.527ct Australian Prehnite Loose Stone Sale price¥12,800

Australian Prehnite 5.5mm/0.538ct Loose Stone Sale price¥6,980

Australian boulder opal 13.190ct loose Sale price¥18,800

Prehnite 0.818ct loose stone Sale price¥3,980

Black opal 2.293ct loose Sale price¥98,000

1.139ct Australian Prehnite loose stone Sale price¥8,800

Australian boulder opal 14.860ct loose Sale price¥18,800

Australian black opal 0.544ct loose stone Sale price¥18,800

Australian Iron Opal 17.450ct Loose Sale price¥12,800

Australian Boulder Opal 41.770ct Loose Sale price¥29,800

Australian Boulder Opal 15.020ct Loose Sale price¥18,800

Australian Boulder Opal 12.220ct Loose Sale price¥12,800

Australian Prehnite 6.0mm/1.004ct loose stone (rose cut) Sale price¥8,800

Australian Prehnite 6.0mm/0.993ct loose stone (rose cut) Sale price¥8,800

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.