0.1ct - 2.0ct

[Listed on 12563726] Sri Lankan Purple Sapphire 0.661ct Loose Stone Sale price¥59,800

[Sales begin July 21st, 10 PM] Kochi Prefecture Harvested Red Coral 1.446ct Loose Stone Sale price¥12,800

[On sale July 21st, 10 PM JST] Kochi Prefecture natural red coral 1.119ct loose stone Sale price¥11,800

[On sale July 18, 10 PM JST] Kochi Prefecture Blood Coral 1.001ct Loose Stone Sale price¥12,800

[Sales begin 10 PM on July 18] Kochi Prefecture blood coral, 1.290 ct loose stone Sale price¥12,800

【Sales Start: July 18, 10 PM JST】Kochi Prefecture Blood Red Coral 1.348ct Loose Stone Sale price¥12,800

[Sale starts 10 PM, July 17th] High-Grade Red Coral (Kochi Prefecture) 1.063ct Loose Stone Sale price¥12,800

[On sale July 16th at 10 PM] Kochi Prefecture produced oxblood coral, 1.087ct loose gemstone Sale price¥12,800

[Sale on July 17th, 10 PM JST] Australian Rainbow Lattice Sunstone 0.850ct Loose Gemstone Sale price¥8,800

[On sale July 17 at 10 PM JST] Australian Rainbow Lattice Sunstone 0.722ct Loose Sale price¥14,800

[Sale on July 18th, 10 PM JST] South African Sugilite 0.748ct Loose Stone Sale price¥13,800

奈良県天川村産レインボーガーネット（アンドラダイトガーネット） 0.650ctルース

[On sale July 20 at 10 PM] Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture, 0.650ct Loose Stone Sale price¥16,800

[Sale at 10 PM on July 20th] American Oregon Sunstone 7.0mm/1.345ct Loose Sale price¥35,800

[On Sale 7/18 at 10 PM] US Oregon Sunstone 1.032ct Loose Stone Sale price¥25,800

Rainbow Lattice Sunstone from Australia 0.352ct Loose Stone [On sale July 18, 10 PM JST] Sale price¥8,800

[Sales from 22:00 on July 18] Brazilian Lavender Quartz (Scoletite) 1.266ct Loose Sale price¥12,800

[On sale July 19 at 10 PM JST] Tanzanian UV-type Grossular Garnet 0.294ct Loose Sale price¥25,800

[Sale July 19 at 10 PM] Synthetic Rutile 5.3mm/0.844ct Loose Stone Sale price¥13,800

[Sale on 7/19 at 10 PM] Brazilian Yellow Beryl 1.472 ct Loose Stone Sale price¥19,800

Sold out

Madagascar Apatite 0.564ct Loose Stone [Sales start July 19, 10 PM JST]

[On sale July 19th at 10 PM] Nepal Bi-Color Kyanite 0.526ct Loose Stone Sale price¥15,800

[On Sale July 19th, 10 PM JST] Nepali Kyanite 0.477ct Loose Stone Sale price¥12,800

[On sale July 19 at 10 PM] Sri Lankan Uva Moonstone 0.974ct Loose Gemstone Sale price¥12,800

[Sale on July 19 at 10 PM] Sri Lankan Uva Moonstone 7.7mm/1.763ct Loose Gemstone Sale price¥19,800

[On sale July 19 at 10 PM JST] Tanzanian Bicolor Zoisite 0.255ct Loose Stone Sale price¥8,800

[On sale July 19 at 10 PM JST] Tanzanian Zoisite 4.9mm/0.472ct Loose Stone Sale price¥15,800

[On sale July 31, 10 PM] Zambian Emerald 1.112ct Loose Stone with Certificate Sale price¥18,800

coming soon

[Published as 12563895] Namibian Jeremejevite Loose Stone, 0.199 ct Sale price¥45,800

[Available 10 PM, July 22nd] Namibian Jeremejevite 0.140ct Loose Gemstone with Certificate Sale price¥33,800

[On sale July 22nd, 10 PM JST] Colombian Bicolor Emerald 0.824ct Loose Gemstone Sale price¥25,800

[On sale July 22, 10 PM] Australian Black Opal 1.082ct Loose Stone with Certificate Sale price¥69,800

[Sale starts July 20 at 10 PM JST] Australian black opal loose stone, 1.066 ct Sale price¥69,800

[Sales begin 7/20 at 10 PM] Australian black opal, 0.778 ct loose stone Sale price¥35,800

coming soon

【Listing 12563849】Australian Black Opal 0.957ct Loose Stone Sale price¥49,800

coming soon

[Listed as 12563760] Tanzanian Ayanas Spinel (Hot Pink Spinel) 0.182ct Loose Stone Sale price¥25,800

タンザニア産アヤナスピネル（ホットピンクスピネル）3.0mm/ 0.107ctルース

[Sale on 7/22 at 10 PM] Tanzanian Ayana Spinel (Hot Pink Spinel) 3.0mm/ 0.107ct Loose Stone Sale price¥18,800

[On Sale 10 PM, July 11] Brazilian Amphibole in Danburite, 1.361ct Loose Sale price¥14,800

[On sale July 15 at 10 PM] Madagascar Grandidierite 0.171ct Loose Gemstone with Certificate Sale price¥29,800

[Sale on 7/15 at 10 PM] Brazilian Green Tourmaline 0.770ct Loose Stone with Certification Sale price¥25,800

[Sales start July 15th at 10 PM] Myanmar Red Spinel 0.229ct Loose Stone with Gemstone Report Sale price¥45,800

[Sales begin 10 PM JST, July 12] Malawi Moonstone 1.651 ct Loose Stone Sale price¥8,800

【On sale July 12th at 10 PM】Malawian Moonstone (Malawi Moonstone) 1.980ct Loose Sale price¥11,000

[On sale 7/14 at 10 PM JST] Malawi Moonstone 1.948ct Loose Gemstone Sale price¥8,800

[Sales start 10 PM July 16] Malawi Moonstone (Malawi Moonstone) 1.747ct Loose Sale price¥8,800

[On sale July 12th, 10 PM JST] Colombian Emerald, 0.191 ct loose stone, Hoki Kyokai Sale price¥45,800

[Available July 11, 10 PM JST] Kenya Bi-Color Grossular Garnet 0.809 ct Loose Stone Sale price¥25,800

[On sale 7/12 at 10 PM] US Oregon Sunstone 7.1mm/1.397ct Loose Stone Sale price¥39,800

[On sale July 12th at 10 PM] Bulgarian Sphalerite 7.0mm/1.790ct Loose Stone Sale price¥59,800

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.