Under ¥5,000

Sold out

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}

Sold out

Limited to 16 stones: 1 Montana sapphire loose stone (including teal blue and bicolor) Multiple purchase discounts available

Sold out

Limited to 5 stones: 1 Veracruz amethyst rough stone (from Mexico, February birthstone) Multiple purchase discount

Sold out

Rose-cut beryllium-treated sapphire, 1 loose stone (4mm, September birthstone) {Multiple purchase discounts available}

Sold out

Limited to 18 stones: YAG (Yttrium Aluminum Garnet) 1 loose stone (Canary Yellow, 4mm) Multiple purchase discounts available

Sold out

[Reception ends on 11/30]《Shipped from mid-January to late January》 “Bakuten!!” x KARATZ collaboration goods / Onaga T-shirt (black/white)

Sold out

Limited to 12 stones: August birthstone sardonyx (16 x 12 mm) 1 loose stone. Discounts available for multiple purchases.

Sold out

Brazilian Apatite in Jasper 3.423ct Loose Stone

Sold out

Brazilian Apatite in Jasper 5.019ct Loose Stone

Sold out

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

Sold out

Limited to 12 stones, Pakistani oil in quartz, moving bubbles, 1 loose stone, multiple purchase discounts available

Sold out

Limited to 7 stones: 1 loose Sri Lankan spinel (lozenge cut) stone. Discounts available for multiple purchases.

Sold out

Limited to 2 stones: 1 loose Morganite stone from Mozambique (cabochon cut, April birthstone) Multiple purchase discounts available

Sold out

Limited to 11 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases.

Sold out

Nigerian Yellow Beryl (Heliodor) 4mm/0.188ct Loose Stone

Sold out

Tanzania Bicolor Zoisite 0.216ct Loose Stone

Sold out

Tanzania Bicolor Zoisite 0.130ct Loose Stone

Sold out

Tanzania Bicolor Zoisite 0.299ct Loose Stone

Sold out

Tanzanian bicolor sapphire 0.125ct loose stone

Sold out

Tanzanian bicolor sapphire 0.120ct loose stone

Sold out

Tanzanian bicolor sapphire 0.118ct loose stone

Sold out

Unheated Silky Pink Sapphire from Vietnam 2.4mm/0.078ct Loose

Sold out

Lab-grown ice blue diamond set of two (synthetic diamond, VS class equivalent, 1mm) {Multiple purchase discount available}

Sold out

Tanzanian Chrome Tourmaline 0.546ct Loose Stone

Sold out

Limited to 17 stones: 1 loose Afghanite stone from Afghanistan. Discounts available for multiple purchases.

Sold out

Brazilian rutilated quartz (rutile/rutilated quartz (rutilated quartz)) 1 loose stone (3.0-3.5mm, for beginners) {Multiple purchase discounts available}

Sold out

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

Sold out

Limited to 6 stones: 1 topaz rough stone (November birthstone) Multiple purchase discounts available

Sold out

[Limited to 24 stones] Tourmaline Gacha💎Indigolite tourmaline, clover cut, and other single loose stones {Multiple purchase discounts available}

Sold out

Green Sapphire 0.299ct Loose (Silky Sapphire)

Sold out

American Anthill Garnet (Chrome Pyrope Garnet) 1 Stone Loose (Princess Cut, 2.5mm) {Multiple Purchase Discounts Available}

Sold out

Brazilian lepidocrocite in quartz 0.992ct loose

Sold out

Limited to 9 stones [Mr. Sanjay] Oil in quartz, spinel, yellow opal 1 loose stone (damaged) [Multiple purchase discount available]

Sold out

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)

Sold out

Lab-grown pink diamond (2mm, synthetic pink diamond, about Fancy Intense Pink) 1 stone loose (multiple purchase discount available)

Sold out

Afghanite 1 stone loose from Afghanistan《Discount available for multiple purchases》

Sold out

《Limited to 7 stones》1 stone tourmaline in quartz from Sri Lanka loose (8-9mm, octagonal cut)《Multiple purchase discount available》

Sold out

《Limited to 16 stones》1 tanzanite stone (octagonal cut, 3.0mm)《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)

Sold out

Let's try gemstone polishing "Do-it-yourself rough stone polishing set" (for beginners: Inca Rose/Fluorite 2 stone set)

Sold out

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.