Login

Under ¥5,000

Sort by
Sold out Limited to 9 stones: 1 colorless apatite loose stone from Madagascar (average 0.30ct, many inclusions) Multiple purchase discounts available

Limited to 9 stones: 1 colorless apatite loose stone from Madagascar (average 0.30ct, many inclusions) Multiple purchase discounts available
Sold out Limited to 5 stones: 1 colorless apatite loose stone from Madagascar (all stones come with identification certificate, average 0.40ct) Discounts for multiple purchases available

Limited to 5 stones: 1 colorless apatite loose stone from Madagascar (all stones come with identification certificate, average 0.40ct) Discounts for multiple purchases available
Sold out デンドリティックアゲート 68.090ctルース

Brazilian Dendritic Agate 68.090ct Loose

Sold out Limited to 6 stones: 1 loose sphene stone from Madagascar (round cut, 4mm) Multiple purchase discounts available

Limited to 6 stones: 1 loose sphene stone from Madagascar (round cut, 4mm) Multiple purchase discounts available
Sold out デンドリティッククォーツ 1.547ctルース

Brazilian Dendritic Quartz 1.547ct Loose Stone
Sold out ガーデンクォーツ 6.760ctルース

Brazilian Garden Quartz 11.6mm/6.760ct Loose Stone
Sold out [Limited to 7 stones] Gem gacha💎 Australian opal or Mexican cantera opal 1 loose stone (with defects) [Multiple purchase discount available]

[Limited to 7 stones] Gem gacha💎 Australian opal or Mexican cantera opal 1 loose stone (with defects) [Multiple purchase discount available]
Sold out Limited to 2 stones: 1 Australian opal loose stone (pear cut) Multiple purchase discounts available

Limited to 2 stones: 1 Australian opal loose stone (pear cut) Multiple purchase discounts available
Sold out Limited to 7 stones: 1 Hokkaido rhodochrosite loose stone (4mm, rose cut) Multiple purchase discounts available

Limited to 7 stones: 1 Hokkaido rhodochrosite loose stone (4mm, rose cut) Multiple purchase discounts available
Sold out Brazilian Dendritic Quartz 1.206ct Loose Stone

Brazilian Dendritic Quartz 1.206ct Loose Stone
Sold out Limited to 5 stones: 1 Mexican Hyalite Opal loose stone (average 0.5ct) Multiple purchase discounts available

Limited to 5 stones: 1 Mexican Hyalite Opal loose stone (average 0.5ct) Multiple purchase discounts available
Sold out デンドリティッククォーツ 2.165ctルース

Brazilian dendritic quartz 2.165ct loose stone
Sold out デンドリティッククォーツ 1.710ctルース

Brazilian dendritic quartz 1.710ct loose stone
Sold out タンザニア産バイカラーサファイア 0.970ctルース（ウィンザーサファイア）

Tanzania Windsor Sapphire 0.970ct Loose

Sold out 【12530986掲載】デンドリティッククォーツ 4.480ctルース

Brazilian dendritic quartz 4.480ct loose stone
Sold out 【12529747掲載】スフェーン 0.570ctルース

Madagascar sphene 0.570ct loose stone
Sold out タンザニア産バイカラーサファイア 1.20ctルース（ウィンザーサファイア）

Tanzania Windsor Sapphire 1.20ct Loose
Sold out Limited to 21 stones: 1 loose stone of Spanish sphalerite (faceted cut, average 0.60ct) Multiple purchase discounts available

Limited to 21 stones: 1 loose stone of Spanish sphalerite (faceted cut, average 0.60ct) Multiple purchase discounts available
Sold out Limited to 5 stones: 1 Brazilian Alexandrite loose stone (round cut, 1.3mm) Multiple purchase discounts available

Limited to 5 stones: 1 Brazilian Alexandrite loose stone (round cut, 1.3mm) Multiple purchase discounts available
Sold out Brazilian unheated Imperial Topaz 1 stone loose stone {Multiple purchase discount available}

Brazilian unheated Imperial Topaz 1 stone loose stone {Multiple purchase discount available}
Sold out Pezzottaite from Madagascar, 1 loose stone (2.1mm, round cut) {Multiple purchase discount available}

Pezzottaite from Madagascar, 1 loose stone (2.1mm, round cut) {Multiple purchase discount available}
Sold out [Jeweler's Tools] {3 sets remaining} 3-piece set: Jewelry loupe (14x magnification), blue diamond, and pink tourmaline or sapphire

[Jeweler's Tools] {3 sets remaining} 3-piece set: Jewelry loupe (14x magnification), blue diamond, and pink tourmaline or sapphire
Sold out Limited to 10 stones: 1 London blue diamond loose (VS-SI class equivalent, 1.8mm) Multiple purchase discounts available

Limited to 10 stones: 1 London blue diamond loose (VS-SI class equivalent, 1.8mm) Multiple purchase discounts available
Sold out Limited to 9 stones: 1 London Blue Diamond Loose (VS-SI class equivalent, 2.0mm) Multiple purchase discounts available

Limited to 9 stones: 1 London Blue Diamond Loose (VS-SI class equivalent, 2.0mm) Multiple purchase discounts available
Sold out Limited to 7 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases.

Limited to 7 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases.
Sold out Limited to 5 stones: 1 green zircon from Sri Lanka. Discounts available for multiple purchases.

Limited to 5 stones: 1 green zircon from Sri Lanka. Discounts available for multiple purchases.
Sold out ブラジル産アメジスト 4.961ctルース

Brazilian Amethyst 4.961ct Loose Stone
Sold out TV anime "Black Butler -Boarding School Arc-" x KARATZ collaboration tin mirror

TV anime "Black Butler -Boarding School Arc-" x KARATZ collaboration tin mirror

Sold out スリランカ産イエローサファイア 0.124ctルース

Sri Lankan Yellow Sapphire 0.124ct Loose
Sold out [Sales end on Friday, April 18th] TV anime "I Want Someone Else in the Next Life" x KARATZ collaboration oil-in-acrylic coaster

[Sales end on Friday, April 18th] TV anime "I Want Someone Else in the Next Life" x KARATZ collaboration oil-in-acrylic coaster

Sold out Limited to 15 sets: Two Nigerian tourmaline gemstones (October birthstone) Discounts available for multiple purchases

Limited to 15 sets: Two Nigerian tourmaline gemstones (October birthstone) Discounts available for multiple purchases
Sold out Limited to 3 stones: Rare twin-type Akoya pearl, 1 loose stone, 4.0-4.5mm, discounts available for multiple purchases

Limited to 3 stones: Rare twin-type Akoya pearl, 1 loose stone, 4.0-4.5mm, discounts available for multiple purchases
Sold out Brazilian London Blue Topaz 1 Stone Loose (6mm, Round Cut) {Multiple Purchase Discounts Available}

Brazilian London Blue Topaz 1 Stone Loose (6mm, Round Cut) {Multiple Purchase Discounts Available}
Sold out [Limited to 6 stones] Sapphire Gacha💎 Tanzanian bicolor sapphire (including crescent sapphire, 3-4mm) [Multiple purchase discount available]

[Limited to 6 stones] Sapphire Gacha💎 Tanzanian bicolor sapphire (including crescent sapphire, 3-4mm) [Multiple purchase discount available]
Sold out アパタイトインジャスパー 3.423ctルース

Brazilian Apatite in Jasper 3.423ct Loose Stone

Sold out アパタイトインジャスパー 5.019ctルース

Brazilian Apatite in Jasper 5.019ct Loose Stone

Sold out Limited to 20 stones, Brazilian dendritic quartz, 1 loose stone, multiple purchase discounts available

Limited to 20 stones, Brazilian dendritic quartz, 1 loose stone, multiple purchase discounts available
Sold out ナイジェリア産イエローベリル（ヘリオドール） 4mm/0.188ctルース

Nigerian Yellow Beryl (Heliodor) 4mm/0.188ct Loose Stone
Sold out クロムトルマリン 0.546ctルース

Tanzanian Chrome Tourmaline 0.546ct Loose Stone

Sold out Limited time sale: Tibetan Andesine 1 stone (3mm, round cut) Multiple purchase discounts available

Limited time sale: Tibetan Andesine 1 stone (3mm, round cut) Multiple purchase discounts available
Sold out オーストラリア産オパール 0.246ctルース

Australian Opal 0.246ct Loose
Sold out Limited to 6 stones: 1 topaz rough stone (November birthstone) Multiple purchase discounts available

Limited to 6 stones: 1 topaz rough stone (November birthstone) Multiple purchase discounts available
Sold out スピネル 0.323ctルース

Spinel 0.323ct loose
Sold out オーストラリア産レインボーラティスサンストーン 1.143ctルース

Australian rainbow lattice sunstone 1.143ct loose
Sold out Lab-grown pink diamond (2mm, synthetic pink diamond, about Fancy Light Pink) 1 stone loose (multiple purchase discount available)

Lab-grown pink diamond (2mm, synthetic pink diamond, about Fancy Light Pink) 1 stone loose (multiple purchase discount available)
Sold out Let's try the gem mining experience "Do-it-yourself gem excavation experience set" + bonus of fossil stickers and simple black light (more than 8 types of gems) (discounts available for multiple purchases)

Let's try the gem mining experience "Do-it-yourself gem excavation experience set" + bonus of fossil stickers and simple black light (more than 8 types of gems) (discounts available for multiple purchases)

Sold out Brazilian Paraiba Tourmaline (1.0mm, top quality)《Multiple purchase discount available》

Brazilian Paraiba Tourmaline (1.0mm, top quality)《Multiple purchase discount available》

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.