Login

Gem Gacha

Sort by
[Available at 10 PM on January 18th] Limited to 16 Diamonds: Fancy Purple Pink/SI-1/Pink Diamond Gacha (Multiple Purchase Discounts Available)

[Available at 10 PM on January 18th] Limited to 16 Diamonds: Fancy Purple Pink/SI-1/Pink Diamond Gacha (Multiple Purchase Discounts Available) Sale price¥5,980
[Available at 10 PM on January 11th] Limited to 13 stones: Koshu Precious Stones "Moon-Shaped Cut Glass" Blue Topaz Loose Gacha Set, including 10ct Blue Topaz (Multiple Purchase Discounts Available)

[Available at 10 PM on January 11th] Limited to 13 stones: Koshu Precious Stones "Moon-Shaped Cut Glass" Blue Topaz Loose Gacha Set, including 10ct Blue Topaz (Multiple Purchase Discounts Available) Sale price¥4,980
Limited Edition of 11 Montana Sapphires (Rock Creek Mine) Gacha! 1 Loose Stone (Oval Cut, 5x3mm) - Multiple Purchase Discounts Available

Limited Edition of 11 Montana Sapphires (Rock Creek Mine) Gacha! 1 Loose Stone (Oval Cut, 5x3mm) - Multiple Purchase Discounts Available Sale price¥3,980
Limited to 14 stones: Brazilian dendritic quartz loose stone (average 7 carats) Multiple purchase discounts available

Limited to 14 stones: Brazilian dendritic quartz loose stone (average 7 carats) Multiple purchase discounts available Sale price¥2,980
Limited to 14 stones: Beryllium-heated sapphire (3.5mm, KEN cut) - 1 loose stone. Discounts available for multiple purchases.

Limited to 14 stones: Beryllium-heated sapphire (3.5mm, KEN cut) - 1 loose stone. Discounts available for multiple purchases. Sale price¥1,580
Limited to 20 stones! Includes 6 red gemstones of pigeon blood ruby ​​with AGL certificate. Discounts available for multiple purchases.

Limited to 20 stones! Includes 6 red gemstones of pigeon blood ruby ​​with AGL certificate. Discounts available for multiple purchases. Sale price¥6,980
Limited Edition of 12 Diamonds: VS Equivalent Fluorescent Diamond Gacha with Bonus Mini Slice Diamond (Multiple Purchase Discounts Available)

Limited Edition of 12 Diamonds: VS Equivalent Fluorescent Diamond Gacha with Bonus Mini Slice Diamond (Multiple Purchase Discounts Available) Sale price¥6,980
Limited to 4 stones: Carving Gacha (pink tourmaline, average 3.4 carats) 1 loose stone (multiple purchase discounts available)

Limited to 4 stones: Carving Gacha (pink tourmaline, average 3.4 carats) 1 loose stone (multiple purchase discounts available) Sale price¥3,980
Limited to 10 stones: Tanzanite rough stone gacha including bicolor pink tanzanite rough stones (average 4.2 carats) [Multiple purchase discounts available]

Limited to 10 stones: Tanzanite rough stone gacha including bicolor pink tanzanite rough stones (average 4.2 carats) [Multiple purchase discounts available] Sale price¥6,980
Limited Edition of 12: Brazilian Indigolite Tourmaline Loose Stone (4x3mm, Oval Cut) - Multiple Purchase Discounts Available

Limited Edition of 12: Brazilian Indigolite Tourmaline Loose Stone (4x3mm, Oval Cut) - Multiple Purchase Discounts Available Sale price¥4,980
Limited to 11 stones: Sakura-shaped Contralus Opal and a specially cut Opal Gacha with one loose stone. Discounts available for multiple purchases.

Limited to 11 stones: Sakura-shaped Contralus Opal and a specially cut Opal Gacha with one loose stone. Discounts available for multiple purchases. Sale price¥3,980
Limited to 10 stones! Spinel Gacha: 1 loose stone including a 1.17ct bicolor spinel. Multiple purchase discounts available.

Limited to 10 stones! Spinel Gacha: 1 loose stone including a 1.17ct bicolor spinel. Multiple purchase discounts available. Sale price¥4,980
Limited Edition Synthetic Moissanite Gacha! 💎 Koshu Kiriko Plus Three Moissanite, Sange Cut, Pink, and Blue Moissanite Loose Stones Available. Multiple Purchase Discounts Available.

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 20 stones! Includes 2 Koshu Kiriko fire opals and 1 loose fire opal. Discounts available for multiple purchases.

Limited to 20 stones! Includes 2 Koshu Kiriko fire opals and 1 loose fire opal. Discounts available for multiple purchases. Sale price¥4,980
Limited to 22 Sapphire Gacha (Includes Sakura In-Cut & Sakura Shape Sapphire, Bonus Hot Pink Sapphire) (Multiple Purchase Discounts Available)

Limited to 22 Sapphire Gacha (Includes Sakura In-Cut & Sakura Shape Sapphire, Bonus Hot Pink Sapphire) (Multiple Purchase Discounts Available) Sale price¥6,980
ルビー 0.258ctルース

Ruby 0.258ct loose Sale price¥18,800
コロンビア産エメラルド 37.764ct原石（ガチャラ鉱山）

Colombian emerald rough stone 37.764ct (Gachala mine) Sale price¥598,000
《17色》宝石ガチャガチャ💎新作モアッサナイト6.5mm（H&C ハート＆キューピッド）💎《複数購入割引有》 - カラッツSTORE

《17 colors》Gem Gacha💎Synthetic Moissanite 1 stone loose (H&C Heart & Cupid, 6.5mm)💎《Multiple purchase discount available》 Sale price¥5,980
{For beginners} Gem gacha💎 1 loose gemstone (Chrome tourmaline, Mahenge spinel, etc.) cut by Sri Lankan craftsman Sanjay {Multiple purchase discounts available}

{For beginners} Gem gacha💎 1 loose gemstone (Chrome tourmaline, Mahenge spinel, etc.) cut by Sri Lankan craftsman Sanjay {Multiple purchase discounts available} Sale price¥3,980
Gem Gacha💎 Lepidolite in Quartz 1 stone《Multiple purchase discount available》

Gem Gacha💎 Lepidolite in Quartz 1 stone《Multiple purchase discount available》 Sale price¥3,980
Gem Gacha💎Chalcedony Gacha (1 in 5 will win a camellia cut)《Multiple purchase discounts available》

Gem Gacha💎Chalcedony Gacha (1 in 5 will win a camellia cut)《Multiple purchase discounts available》 Sale price¥3,980
スリランカ産サファイア《ラトゥナプラ》1石ルース(平均0.75ct)

Gem Gacha💎 Sri Lankan Sapphire《Ratnapura》1 loose stone (average 0.75ct)《Multiple purchase discount available》 Sale price¥5,980
Gem Gacha💎 Custom cut spinel《August birthstone》《Multiple purchase discounts available》

Gem Gacha💎 Custom cut spinel《August birthstone》《Multiple purchase discounts available》 Sale price¥5,980
coming soon [Available at 10 PM on January 1st] [Limited to 16 stones] Win Cornflower Blue and Royal Blue Sapphires with Certificates of Authenticity in the Blue Sapphire Gacha! [Multiple purchase discounts available]

[Available at 10 PM on January 1st] [Limited to 16 stones] Win Cornflower Blue and Royal Blue Sapphires with Certificates of Authenticity in the Blue Sapphire Gacha! [Multiple purchase discounts available] Sale price¥5,980
coming soon [Available at 10 PM on January 1st] Limited Edition 13 Stones Rare Stone Gacha💎 Shinsha, Zimbabwean Euclase, Red Beryl, Kornerupine, Benitoite, and Clinozoisite (Multiple Purchase Discounts Available)

[Available at 10 PM on January 1st] Limited Edition 13 Stones Rare Stone Gacha💎 Shinsha, Zimbabwean Euclase, Red Beryl, Kornerupine, Benitoite, and Clinozoisite (Multiple Purchase Discounts Available) Sale price¥3,980
coming soon [Limited to 15 stones] Kornerupine Gacha 💎 Win Tanzanian Kornerupine (Prismatine) with a Japanese-German Appraisal (Multiple purchase discounts available)

[Limited to 15 stones] Kornerupine Gacha 💎 Win Tanzanian Kornerupine (Prismatine) with a Japanese-German Appraisal (Multiple purchase discounts available) Sale price¥5,980
Sold out [Available at 10 PM on January 18th] Limited to 14 stones! Big Gem Gacha! Includes 23mm Camellia Cut and 15mm Dandelion Cut stones, guaranteed to be over 5ct. Multiple purchase discounts available.

[Available at 10 PM on January 18th] Limited to 14 stones! Big Gem Gacha! Includes 23mm Camellia Cut and 15mm Dandelion Cut stones, guaranteed to be over 5ct. Multiple purchase discounts available.
Sold out [Available at 10 PM on January 12th] Limited to 10 Blue Rare Stones Gacha💎 (Brazilian Paraiba Tourmaline, Indigolite Tourmaline, Benitoite, and Cobalt Spinel) [Multiple Purchase Discounts Available]

[Available at 10 PM on January 12th] Limited to 10 Blue Rare Stones Gacha💎 (Brazilian Paraiba Tourmaline, Indigolite Tourmaline, Benitoite, and Cobalt Spinel) [Multiple Purchase Discounts Available]
Sold out Panda Cut Gacha💎 Brazilian Paraiba Tourmaline (0.226ct/CuO: 0.7%, MnO: 2.5%) - 1 Stone, 5 Panda Cut Stones (Multiple Purchase Discounts Available)

Panda Cut Gacha💎 Brazilian Paraiba Tourmaline (0.226ct/CuO: 0.7%, MnO: 2.5%) - 1 Stone, 5 Panda Cut Stones (Multiple Purchase Discounts Available)
Sold out [Available at 10 PM on January 11th] Limited to 6 stones: Loose Sunstone Gacha (average 1.60 carats) including an 8.0mm camellia-cut Oregon sunstone. Discounts available for multiple purchases.

[Available at 10 PM on January 11th] Limited to 6 stones: Loose Sunstone Gacha (average 1.60 carats) including an 8.0mm camellia-cut Oregon sunstone. Discounts available for multiple purchases.
Sold out Blue Stone Gacha💎 (Brazilian Paraiba Tourmaline, Mozambique Paraiba Tourmaline, German Auchenite, Benitoite) {Multiple Purchase Discounts Available}

Blue Stone Gacha💎 (Brazilian Paraiba Tourmaline, Mozambique Paraiba Tourmaline, German Auchenite, Benitoite) {Multiple Purchase Discounts Available}
Sold out [Available at 10 PM on January 10th] Limited Edition Pink Diamond Gacha! 13 Diamonds 💎 Includes Fancy Colors and Princess Cuts, Normally ¥49,800. Discounts available for multiple purchases.

[Available at 10 PM on January 10th] Limited Edition Pink Diamond Gacha! 13 Diamonds 💎 Includes Fancy Colors and Princess Cuts, Normally ¥49,800. Discounts available for multiple purchases.
Sold out [On Sale at 10 PM on January 12th] Limited to 15 Stones! Rare Stone Gacha! 98,000 Yen: Oil-Free Red Beryl with GIA, Shinsha, Paraiba Tourmaline from Mozambique, Benitoite, and More! Discounts Available for Multiple Purchases!

[On Sale at 10 PM on January 12th] Limited to 15 Stones! Rare Stone Gacha! 98,000 Yen: Oil-Free Red Beryl with GIA, Shinsha, Paraiba Tourmaline from Mozambique, Benitoite, and More! Discounts Available for Multiple Purchases!
Sold out [Available at 10 PM on January 11th] Limited Quantities! January Campaign Gem Gacha! Green Diamonds, Hot Pink Spinel, and More, Normally ¥39,800! Multi-Purchase Discounts Available!

[Available at 10 PM on January 11th] Limited Quantities! January Campaign Gem Gacha! Green Diamonds, Hot Pink Spinel, and More, Normally ¥39,800! Multi-Purchase Discounts Available!
Sold out [Available at 10 PM on January 10th] Zoisite Gacha with Certificate of Authenticity (Includes Pink Zoisite, Yellow Zoisite, Green Zoisite, and Tanzanite, 5mm) [Multiple Purchase Discounts Available]

[Available at 10 PM on January 10th] Zoisite Gacha with Certificate of Authenticity (Includes Pink Zoisite, Yellow Zoisite, Green Zoisite, and Tanzanite, 5mm) [Multiple Purchase Discounts Available]
Sold out [On sale 1/9 at 10 PM] Diamond Gacha including VVS-1/H&C sorting (multiple purchase discounts available)

[On sale 1/9 at 10 PM] Diamond Gacha including VVS-1/H&C sorting (multiple purchase discounts available)
Sold out [Available at 10 PM on January 2nd] [Limited to 11 stones] Bicolor Gacha (Includes Zimbabwean Bicolor Euclase, Bicolor Sapphire, and Bicolor Zoisite) [Multiple purchase discounts available]

[Available at 10 PM on January 2nd] [Limited to 11 stones] Bicolor Gacha (Includes Zimbabwean Bicolor Euclase, Bicolor Sapphire, and Bicolor Zoisite) [Multiple purchase discounts available]
Sold out [Available at 10 PM on January 3rd] Limited to 13 stones: Beryl Gacha (including Koshu Kiriko Aquamarine Vortex Cut) 1 loose stone [Multiple purchase discounts available]

[Available at 10 PM on January 3rd] Limited to 13 stones: Beryl Gacha (including Koshu Kiriko Aquamarine Vortex Cut) 1 loose stone [Multiple purchase discounts available]
Sold out [Available at 10 PM on January 4th] Limited Edition of 12 Rare Stones: 0.22ct Brazilian Paraiba Tourmaline (with sorting), Euclase from Zimbabwe, Paraiba Tourmaline from Mozambique, Benitoite, Axinite, and Cinnabar (Multiple Purchase Discounts Available)

[Available at 10 PM on January 4th] Limited Edition of 12 Rare Stones: 0.22ct Brazilian Paraiba Tourmaline (with sorting), Euclase from Zimbabwe, Paraiba Tourmaline from Mozambique, Benitoite, Axinite, and Cinnabar (Multiple Purchase Discounts Available)
Sold out Limited to 15 stones: Blue Stone Gacha (0.157ct Paraiba Tourmaline from Brazil, 3.5mm Apatite from Germany, Top-Quality Benitoite, 4.5mm Paraiba Tourmaline in Quartz, Custom-Cut Aquamarine) (Multiple Purchase Discounts Available)

Limited to 15 stones: Blue Stone Gacha (0.157ct Paraiba Tourmaline from Brazil, 3.5mm Apatite from Germany, Top-Quality Benitoite, 4.5mm Paraiba Tourmaline in Quartz, Custom-Cut Aquamarine) (Multiple Purchase Discounts Available)
Sold out Limited to 20 stones: Neon-colored Paraiba gacha containing Brazilian Paraiba tourmaline (CuO: 2.3%, MnO: 2.6%). Multiple purchase discounts available.

Limited to 20 stones: Neon-colored Paraiba gacha containing Brazilian Paraiba tourmaline (CuO: 2.3%, MnO: 2.6%). Multiple purchase discounts available.
Sold out Limited Edition of 7 Montana Sapphires (Rock Creek Mine) Gacha (Pear Shape, Approx. 5 x 3mm) [Multiple Purchase Discounts Available]

Limited Edition of 7 Montana Sapphires (Rock Creek Mine) Gacha (Pear Shape, Approx. 5 x 3mm) [Multiple Purchase Discounts Available]
Sold out Limited to 10 stones! Rare Stone Gacha! 💎 Shinsha, Zimbabwean Euclase, Red Beryl, Star Peridot, and more. Multi-buy discounts available.

Limited to 10 stones! Rare Stone Gacha! 💎 Shinsha, Zimbabwean Euclase, Red Beryl, Star Peridot, and more. Multi-buy discounts available.
Sold out Red Gemstone Gacha including Pigeon Blood Ruby AIGS worth ¥60,000 💎 Ruby and Hot Pink Sapphire (Multiple Purchase Discounts Available)

Red Gemstone Gacha including Pigeon Blood Ruby AIGS worth ¥60,000 💎 Ruby and Hot Pink Sapphire (Multiple Purchase Discounts Available)
Sold out Limited to 11 stones: Diamond gacha including VVS/4mm, VS/3mm, etc. worth ¥40,000. Discounts available for multiple purchases.

Limited to 11 stones: Diamond gacha including VVS/4mm, VS/3mm, etc. worth ¥40,000. Discounts available for multiple purchases.
Sold out [On sale until 10 PM] Limited to 10 stones: Yamamoto Cut Gacha, featuring carnelian, lemon quartz, rock crystal, and more. Discounts available for multiple purchases.

[On sale until 10 PM] Limited to 10 stones: Yamamoto Cut Gacha, featuring carnelian, lemon quartz, rock crystal, and more. Discounts available for multiple purchases.
Sold out [/ On sale at 10pm] [Limited to 18 stones] Zircon Gacha - Win Koshu Precious Stones, Clover In, and Sakura Shapes [Multiple purchase discounts available]

[/ On sale at 10pm] [Limited to 18 stones] Zircon Gacha - Win Koshu Precious Stones, Clover In, and Sakura Shapes [Multiple purchase discounts available]
Sold out Limited to 10 stones! Zimbabwean Bicolor Euclase, Bicolor Sapphire, and More! Bicolor Loose Stones! 💎 Single Loose Stones Available. Discounts Available for Multiple Purchases.

Limited to 10 stones! Zimbabwean Bicolor Euclase, Bicolor Sapphire, and More! Bicolor Loose Stones! 💎 Single Loose Stones Available. Discounts Available for Multiple Purchases.

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.