Vertical: Above 10.0mm

[On sale July 12th at 10 PM] Malawi Moonstone 2.184ct Loose Sale price¥13,800

[On sale July 11th at 10 PM JST] USA Oregon Sunstone 10.8mm/4.864ct Loose Gemstone Sale price¥98,000

[On sale July 11th at 10 PM] Brazilian Pyrite in Quartz, 5.600 ct. Loose stone Sale price¥9,800

オーストラリア産オーストラリア産レインボーラティスサンストーン 2.902ctルース

[Sale on July 10th at 10 PM] Australian Rainbow Lattice Sunstone 2.902ct Loose Sale price¥29,800

オーストラリア産オーストラリア産レインボーラティスサンストーン 2.208ctルース

[Sale on 7/10 at 10 PM] Australian Rainbow Lattice Sunstone 2.208ct Loose Stone Sale price¥22,800

[On sale July 10th at 10 PM] Brazilian Dumortierite in Quartz 1.684 ct Loose Stone Sale price¥12,800

[Listed on 12562258] Eudialyte from Canada 2.796 ct loose stone Sale price¥39,800

[Lottery Sale 0428_2_07] Watermelon Tourmaline 14.780ct Loose Stone Sale price¥128,000

Lottery Sale 11 [For Winners Only] [Listing 12562752] Colombian Pyrite in Emerald Loose Stone 2.107ct Sale price¥49,800

[On sale July 4th at 10 PM] Brazilian Dumortierite in Quartz, 1.290ct Loose Stone Sale price¥12,800

[On sale July 5th, 10 PM JST] Brazilian Blue Tourmaline in Quartz 10.466ct Loose Stone Sale price¥39,800

[On Sale July 6, 10 PM] Brazilian Blue Tourmaline in Quartz 4.241ct Loose Stone Sale price¥19,800

[On sale July 9th at 10 PM JST] Brazilian Black Garden Quartz Loose Stone 5.030ct Sale price¥12,800

ブラジル産ティンカーベルクォーツ（ピンクファイヤークォーツ） 4.823ctルース

[On Sale July 9 at 10 PM JST] Brazilian Tinkerbell Quartz (Pink Fire Quartz) 11mm/4.823ct Loose Stone Sale price¥25,800

Brazilian Flower Rutile in Quartz 5.122ct Loose Stone Sale price¥7,980

Brazilian Dendritic Agate 3.575ct Loose Stone Sale price¥8,800

Montana Agate 9.528ct Loose Sale price¥8,800

【甲州貴石切子plusthree】メキシコ産ファイアオパール 4.633ctルース《コラボ》ワッペン

[Koshu Precious Stones plusthree] Mexican Fire Opal 4.633ct Loose Stone [Collaboration] Patch Sale price¥49,800

Australian black opal 3.242ct loose stone Sale price¥59,800

Bolivian Ametrine 36.887ct loose stone Sale price¥79,800

Brazilian Amethyst 9.749ct Loose Stone Sale price¥12,800

Australian Rainbow Lattice Sunstone 1.746ct Loose Stone Sale price¥12,800

[On Sale May 5th at 10 PM] Cambodian Blue Zircon (Ratanakiri Blue) 23.105ct Loose Stone with Appraisal Sale price¥498,000

[On sale June 21st, 10 PM] Mexican Fire Opal Loose Stone 2.279ct Sale price¥15,800

[12552038] Beryl Cat's Eye 32.703ct Loose Stone Sale price¥98,000

[12552306] Iolite 14.158ct loose stone Sale price¥258,000

[12551148] Australian black opal 3.890ct loose stone Sale price¥69,800

Brazilian dendritic quartz 4.587ct loose stone Sale price¥9,800

[Sale on June 6 at 10 PM] Pyrite in Emerald from Chivor Mine, Colombia, 4.221 ct Loose Stone Sale price¥98,000

[On sale June 6th, 10 PM JST] Peruvian Gem Silica (Chrysocolla Chalcedony) 4.098ct Loose Stone with Japan-Germany Gemological Report Sale price¥24,800

[On sale June 6th at 10 PM JST] Peruvian Gem Silica (Chrysocolla Chalcedony) 3.210ct Loose Stone, GIA & JGGL Certified Sale price¥19,800

[Sale on 6/6 at 10 PM JST] Peruvian Gem Silica (Chrysocolla Chalcedony) 2.556ct Loose Stone with Japan-Germany Gemstone Report Sale price¥15,800

[On sale June 6th at 10 PM] Malawi Moonstone (Malawi Moonstone) 2.428 ct Loose Sale price¥18,800

[Sale on June 6 at 10 PM] Malawi Moonstone (Malawi Moonstone) 2.209 ct loose stone Sale price¥15,800

[On sale June 6th at 10 PM] Malawi Moonstone 2.201ct Loose Stone Sale price¥15,800

[Sale at 10 PM on June 6] Malawi Moonstone 1.661ct Loose Stone Sale price¥12,800

ブラジル産ティンカーベルクォーツ（ピンクファイヤークォーツ） 7.682ctルース

[On sale 10 PM, June 6] Brazil Tinkerbell Quartz (Pink Fire Quartz) 7.682ct Loose Stone Sale price¥15,800

【Sales start May 30th, 10 PM JST】 Malawi Moonstone 2.601ct Loose Sale price¥5,980

[Sales start May 31, 10 PM JST] Brazilian Marcasite in Quartz Loose Stone 6.670ct Sale price¥25,800

Amethyst 4.249ct rough stone Sale price¥4,980

Brazilian Quartz in Quartz 15.373ct Loose Stone Sale price¥18,800

Bicolor tourmaline 4.448ct loose stone Sale price¥55,800

Kunzite from Afghanistan 12mm/8.834ct loose stone Sale price¥39,800

[Sale starts June 13th at 10 PM] Kochi Prefecture Blood Coral 2.340ct Loose Stone Sale price¥19,800

[Sale on June 13 at 10 PM] Kochi Prefecture Red Coral Loose Stone 2.294ct Sale price¥19,800

[Sales start 10 PM on June 8th] High-Grade Red Coral from Kochi Prefecture, 2.187ct Loose Stone Sale price¥19,800

【Sales Start: June 8th, 10 PM JST】Kochi Prefecture-produced Red Coral, 1.975ct Loose Stone Sale price¥18,800

【On sale June 13th at 10 PM】Kochi Prefecture Red Coral Rough Stone 6.520ct 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.