Ka row

Pyrope spessartine garnet (color change garnet) 1 stone loose (multiple purchase discount available) Sale price¥5,980

[On sale November 16th at 10pm] [Limited to 32 stones] Namibian Mandarin Garnet Loose Stone (Round Cut, 2.5mm) [Multiple purchase discounts available] Sale price¥5,980

Limited to 8 stones: Colombian mango quartz (up to 60 carats, average 21.6 carats) [Multiple purchase discounts available] Sale price¥1,980

Limited Edition Synthetic Moissanite Gacha! 💎 Koshu Kiriko Plus Three Moissanite, Sange Cut, Pink, and Blue Moissanite Loose Stones Available. Multiple Purchase Discounts Available. Sale price¥4,980

Limited to 14 stones: Brazilian dendritic quartz loose stone (average 7 carats) Multiple purchase discounts available Sale price¥2,980

Limited to 8 stones: 1 loose kite cut stone (illusion sunstone, sapphire, emerald, spessartine garnet, etc.) Multiple purchase discounts available Sale price¥5,980

Limited to 4 stones: 1 bicolor grossular garnet from Tanzania (multiple purchase discounts available) Sale price¥5,980

ロシア産デマントイドガーネットキャッツアイ（ホーステール認む） 2.8mm/0.188ctルース

Russian demantoid garnet cat's eye (horsetail recognized) 2.8mm/0.188ct loose Sale price¥25,800

Kyanite from Nepal, 1 loose stone (indigo blue color, 4 x 6 mm, emerald cut) {Multiple purchase discount available} Sale price¥6,980

Nepalese Kyanite 1 stone loose (Royal Blue color, 4 x 6mm, oval cut) {Multiple purchase discount available} Sale price¥3,980

[Dandelion cut] Pyrope almandine garnet 9.0mm/3.566ct loose stone Sale price¥35,800

Synthetic Moissanite 8.417ct Loose Stone Sale price¥49,800

[Limited to 9 stones] Brazilian green quartz 1 stone loose (10mm) [Multiple purchase discount available] Sale price¥3,980

Quartz 96.732ct loose (explosion crystal) Sale price¥2,980

Color change sapphire 0.946ct loose Sale price¥29,800

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） 2.483ctルース

Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture 2.483ct loose Sale price¥15,800

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） 1.163ctルース

Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture 1.163ct loose Sale price¥9,800

ロシア産デマントイドガーネットキャッツアイ（ホーステール認む） 2.5mm/0.141ctルース

Russian demantoid garnet cat's eye (horsetail recognized) 2.5mm/0.141ct loose Sale price¥12,800

[11/29 22:00] Tanzanian Almandine Garnet 2.697ct Loose Stone Sale price¥18,800

[11/29 22:00 Sale] Tanzanian Almandine Garnet 1.282ct Loose Stone Sale price¥13,800

[12/2 22:00] Tanzanian Almandine Garnet 1.164ct Loose Stone Sale price¥12,800

[12/2 22:00] Tanzanian Almandine Garnet 0.930ct Loose Stone Sale price¥9,800

[11/26 22:00] Tanzanian Almandine Garnet 0.902ct Loose Stone Sale price¥12,800

[11/29 22:00 Sale] Tanzanian Almandine Garnet 0.750ct Loose Stone Sale price¥9,800

[11/26 22:00] Tanzanian Almandine Garnet 0.993ct Loose Stone Sale price¥12,800

[12/15 22:00] Tanzanian Almandine Garnet 6.4mm/1.271ct Loose Stone Sale price¥12,800

[11/18 22:00 Sale] Russian Demantoid Garnet (Horsetail Certified) 3.8mm/0.249ct Loose Stone Sale price¥39,800

Synthetic Moissanite 0.632ct loose stone (tie cut) Sale price¥3,980

Synthetic Moissanite 0.509ct loose stone (tie cut) Sale price¥3,980

[On Sale 11/23 10pm] GGG (Gadolium Gallium Garnet) 4.0mm/0.675ct Loose Stone Sale price¥8,800

[11/22 22:00] Sri Lankan Hessonite Garnet 1.968ct Loose Stone Sale price¥12,800

[11/14 22:00 Sale] Afghanistan Kunzite 3.973ct Loose Stone Sale price¥12,800

[11/14 22:00 Sale] [Cat Cut] Brazilian White Chalcedony 0.707ct Loose Stone Sale price¥8,800

[12/15 22:00] Tanzanian Almandine Garnet 11.0mm/6.787ct Loose Stone Sale price¥49,800

[12/3 22:00] Tanzanian Almandine Garnet 2.897ct Loose Stone Sale price¥22,800

[12/15 22:00 Sale] Tanzanian Rhodolite Garnet 1.935ct Loose Stone with Certificate of Authenticity Sale price¥18,800

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） 0.732ctルース

[On Sale 11/27 at 10 PM] Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture, 5.5mm/0.732ct Loose Stone (Rose Cut) Sale price¥5,980

[On Sale 11/20 at 10 PM] Russian Demantoid Garnet (Horsetail Certified) 3.3mm/0.162ct Loose Stone Sale price¥39,800

[11/20 22:00 Sale] Tanzanian Almandine Garnet 2.972ct Loose Stone Sale price¥18,800

[11/20 22:00 Sale] Tanzanian Rhodolite Garnet 3.486ct Loose Stone Sale price¥24,800

[11/22 22:00] Tanzanian Rhodolite Garnet 0.843ct Loose Stone Sale price¥9,800

[11/20 22:00 Sale] Tanzanian Almandine Garnet 1.564ct Loose Stone Sale price¥12,800

[On Sale 11/22 10pm] Tanzanian Rhodolite Garnet 5.3mm/0.903ct Loose Stone Sale price¥9,800

[Posted 12544254] Cornel pin 0.228ct loose Sale price¥18,800

ティンカーベルクォーツ（ピンクファイヤークォーツ） 1.664ctルース（ファセットカット）

Tinker Bell Quartz (Pink Fire Quartz) 1.664ct Loose (Faceted Cut) Sale price¥12,800

Dendritic quartz 7.997ct loose Sale price¥6,980

[On Sale 11/8 at 10pm] Russian Demantoid Garnet 0.192ct Loose Stone Sale price¥79,800

[11/2 22:00] Brazilian Dumortierite in Quartz 2.074ct Loose Stone Sale price¥25,800

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.