All

TV anime "Shinkalion Change the World" x KARATZ collaboration Folden Akane model Sale priceFrom ¥16,800

Limited to 25 stones: 1 unheated yogo sapphire rough stone. Discounts available for multiple purchases. Sale price¥4,980

《Limited to 21 Stones》Conch Pearl & Shell Gacha from the Dominican Republic, including Flame Pattern, 1 Stone Loose《Multi-purchase Discount Available》 Sale price¥3,980

《Limited to 13 stones, Tucson Arrivals》Kenya Bi-Color Grossular Garnet, usually ¥29,800, average 0.63ct. Tucson Arrivals 《Multiple Purchase Discount Available》 Sale price¥9,800

[On sale May 4th at 10 PM] Limited to 12 Stones - Loose Sri Lankan Star Sapphire (1 Stone) - Multiple Purchase Discount Available Sale price¥4,980

【Sales Start 10 PM, May 17 JST】《Limited 26 Stones》Chrysoberyl Cat's Eye from Kerala, India (Neon Greenish Yellow/Mini Size) 《Bulk Purchase Discount Available》 Sale price¥1,580

[On Sale June 6th, 10 PM JST] 11-Piece Limited Edition Madagascar Sapphire Gacha (Including bi-color and silky varieties, 3.5-5.4mm) [Multi-buy discount available] Sale price¥4,980

Additional charge for resizing: +3,000 yen Sale price¥3,000

1 stone of green opal from South Africa (discount available for multiple purchases) Sale priceFrom ¥2,980

【宝石商の道具】冷却ヒビ入れ染色クォーツ色違い2石セット - カラッツSTORE

[Jeweler's Tools] Cooling Cracked Dyed Quartz Set of 2 Stones in Different Colors (Discount available for multiple purchases) Sale price¥2,980

Gem Gacha💎 Custom cut spinel《August birthstone》《Multiple purchase discounts available》 Sale price¥5,980

Limited quantity: Colombian mango quartz (medium size) Multiple purchase discounts available Sale price¥1,680

Chinese color change fluorite 1 stone loose (7mm, round cut) {Multiple purchase discount available} Sale price¥2,580

Orion "Semi-custom pendant frame" Sale price¥59,800

Limited Quantity: 1.5mm Pink Spinel from Myanmar (including Hot Pink Spinel) - Multiple Purchase Discounts Available Sale price¥2,580

Single loose Russian oil-free emerald (1.6-1.7mm, princess cut) {Multiple purchase discounts available} Sale price¥9,800

Limited Edition of 12 Diamonds: VS Equivalent Fluorescent Diamond Gacha with Bonus Mini Slice Diamond (Multiple Purchase Discounts Available) Sale price¥6,980

《New from Tucson, Limited to 17 Stones》High-transparency, high-quality Dumortierite in Quartz from Brazil《Multiple purchase discount available》 Sale price¥3,980

Limited to 8 stones: 1 loose Brazilian ametrine (concave cut, average 10 carats) Multiple purchase discounts available Sale price¥3,980

[On sale June 21st at 10 PM] Ruby Gacha (with synthetic ruby as a bonus) including two pigeon blood rubies with appraisal certificates (limited to 15 stones) - Multiple purchase discount available Sale price¥5,980

[Option] Paraiba Tourmaline component analysis sorting issuance fee Sale price¥5,000

Diamond loose sorting transition fee Sale price¥3,000

1 green spodumene rough stone (average 15ct)《Multiple purchase discount available》 Sale price¥3,980

【KEN氏】モンテブラサイト 1石（4.5mm,ラウンドカット） - カラッツSTORE

Brazilian Montebrasite 1 stone (4.5mm, round cut) (Multi-item discount available) Sale price¥3,980

Additional charge: Center stone size upgrade (3.01ct to 4.0ct) +¥20,000 Sale price¥20,000

“Bakuten!!” x KARATZ collaboration jewelry/onaga ring Sale priceFrom ¥25,800

Moloxite from Madagascar 1 stone loose (green apatite, pear-shaped cut)《Multiple purchase discounts available》 Sale price¥2,980

[Limited to 12 stones] 1 stone loose Oregon sunstone cut like Shimizu Precious Stones + special patch [Discount available for multiple purchases] Sale price¥5,980

タンザニア・マヘンゲ産ピンクスピネル原石・ルース2石セット（プリンセスカット）《複数購入割引有》

《Limited to 20 stones》 Pink spinel raw stone from Mahenge, Tanzania, loose 2 stone set (princess cut)《Multiple purchase discount available》 Sale price¥3,980

Limited to 15 stones: Mozambique aquamarine rough + 2 loose stones set. Discounts available for multiple purchases. Sale price¥2,980

Limited to 11 stones: Brazilian rhodonite in quartz (cabochon, 7.5-8.5mm) 1 loose stone. Discounts available for multiple purchases. Sale price¥2,980

Limited to 20 stones: Russian Demantoid Garnet (Round Cut, 2.0mm) Loose Stone (Multiple Purchase Discounts Available) Sale price¥3,980

Limited to 15 stones: Brazilian Silky Alexandrite Loose Stone (2.5-3.0mm, Round Cut) - Multiple Purchase Discounts Available Sale price¥7,980

Limited to 9 stones. All stones come with appraisal certificates. 1 loose zoisite stone (yellow, pink-brown, green, etc.). Discounts available for multiple purchases. Sale price¥6,980

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 Quantity: Myanmar Gray Spinel/Platinum Spinel (2.0mm, Round Cut) - Single Loose Stone (Multiple Purchase Discounts Available) Sale price¥4,980

Limited to 14 stones: Lab-grown diamond (cabochon cut, approximately 2.3mm) - 1 loose stone. Discounts available for multiple purchases. Sale price¥4,980

Limited to 9 stones! Includes Koshu Kiriko plus three citrine gacha, normally priced at 29,800 yen. Discounts available for multiple purchases. Sale price¥2,980

Limited to 10 stones: Australian Opal Lottery with Certificate of Authenticity (including Australian Black Opal) (plus 1 Mexican Fire Opal) (Multiple purchase discounts available) Sale price¥6,980

《Limited to 12 Stones》New Tucson Arrival: High-Quality Brazilian Dumortierite in Quartz (Faceted Cut)《Multiple Purchase Discount Available》 Sale price¥4,980

《Limited to 11 stones》Garnet Coral (Deep Sea Coral) Branch (Raw Stone) 1 stone (March birthstone, coral, average 23ct)《Bulk purchase discount available》 Sale price¥7,980

[Sales end July 31] Bungo and Alchemist x KARATZ Collaboration Jewelry Vol. 4 Bungo Ring [Takiji Kobayashi Model Ring] Sale priceFrom ¥25,800

[On sale May 23rd, 10 PM] "Limited 7 Stones" Kochi Prefecture Blood Coral Loose Gemstones (Oval Cut, 4x6~7mm) "Multi-purchase discount available" Sale price¥3,980

【Available 10 PM on 6/7】《Limited to 10 Stones》Zircon Gacha including a rare Malawi bicolor zircon, usually priced at 29,800 yen 《Multiple Purchase Discount Available》 Sale price¥4,980

[On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available" Sale price¥6,980

Additional fee +6,000 yen Sale price¥6,000

《Limited to 10 stones》 Indian bag site 1 stone loose (average 2ct)《Multiple purchase discount available》 Sale price¥6,980

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.