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Limited Stock Pink Diamond Gacha! 💎 Fancy Light Pink Diamond 0.117ct (Certified) Includes One UV-Resistant Pink Diamond (Multiple Purchase Discounts Available)

Limited Stock Pink Diamond Gacha! 💎 Fancy Light Pink Diamond 0.117ct (Certified) Includes One UV-Resistant Pink Diamond (Multiple Purchase Discounts Available) Sale price¥5,980
Limited Edition of 11: Two Koshu Kiriko plusthree stones (average 18 carats) with one Dendritic Quartz Gacha (with one Copper Rutile in Quartz) [Multiple purchase discounts available]

Limited Edition of 11: Two Koshu Kiriko plusthree stones (average 18 carats) with one Dendritic Quartz Gacha (with one Copper Rutile in Quartz) [Multiple purchase discounts available] Sale price¥3,980
Limited to 5 sets! Fluorescent Diamond Gacha! 💎 Set of 2 loose diamonds (2.4-3.4mm) [Multiple purchase discounts available]

Limited to 5 sets! Fluorescent Diamond Gacha! 💎 Set of 2 loose diamonds (2.4-3.4mm) [Multiple purchase discounts available] Sale price¥2,980
[Available at 10 PM on August 2nd] {Limited to 8 sets} Gemstone Gacha 💎 1 of the Three Great Gemstones Gacha + 2 Loose Pink Sapphires {Multiple purchase discounts available}

[Available at 10 PM on August 2nd] {Limited to 8 sets} Gemstone Gacha 💎 1 of the Three Great Gemstones Gacha + 2 Loose Pink Sapphires {Multiple purchase discounts available} Sale price¥6,980
Limited to 6 gems! "Gemstone Encyclopedia" Gacha! 💎 1 gemstone (rough stone) from the gemstone encyclopedia + 1 rough emerald, for a total of 2 gems

Limited to 6 gems! "Gemstone Encyclopedia" Gacha! 💎 1 gemstone (rough stone) from the gemstone encyclopedia + 1 rough emerald, for a total of 2 gems Sale price¥8,800
Limited to 9 stones Gem gacha💎 April birthstone gacha: A gacha where you can win a fan-cut diamond with AGT sorting or a morganite. Multiple purchase discounts available.

Limited to 9 stones Gem gacha💎 April birthstone gacha: A gacha where you can win a fan-cut diamond with AGT sorting or a morganite. Multiple purchase discounts available. Sale price¥3,980
Limited to 13 stones Gem gacha💎 Beautiful colored tanzanite 7mm, special cut sphene, heliodor (lots of inclusions) 1 loose stone Multiple purchase discounts available

Limited to 13 stones Gem gacha💎 Beautiful colored tanzanite 7mm, special cut sphene, heliodor (lots of inclusions) 1 loose stone Multiple purchase discounts available Sale price¥4,980
Limited to 15 stones Apatite Gacha💎 Zimbabwean apatite, purple apatite, etc. 1 loose stone (with defects) Multiple purchase discounts available

Limited to 15 stones Apatite Gacha💎 Zimbabwean apatite, purple apatite, etc. 1 loose stone (with defects) Multiple purchase discounts available Sale price¥1,980
Limited to 9 sets Diamond Gacha 💎 Yellow Diamond Rough Stone and Loose Stone Set of 2 《Multiple Purchase Discounts Available》

Limited to 9 sets Diamond Gacha 💎 Yellow Diamond Rough Stone and Loose Stone Set of 2 《Multiple Purchase Discounts Available》 Sale price¥2,980
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
Limited to 10 stones Gem gacha💎 [Mr. Sanje] Tanzanian spinel (1 in 3 will be a red spinel) 1 loose stone [Multiple purchase discounts available]

Limited to 10 stones Gem gacha💎 [Mr. Sanje] Tanzanian spinel (1 in 3 will be a red spinel) 1 loose stone [Multiple purchase discounts available] Sale price¥5,980
[Limited to 24 stones] Tourmaline Gacha💎Indigolite tourmaline, clover cut, and other single loose stones {Multiple purchase discounts available}

[Limited to 24 stones] Tourmaline Gacha💎Indigolite tourmaline, clover cut, and other single loose stones {Multiple purchase discounts available} Sale price¥2,580
宝石ガチャ💎ハートシェイプのトルマリン1石💎4mm《複数購入割引有》

Gem Gacha💎Heart-shaped tourmaline 1 stone💎4mm《Multiple purchase discount available》 Sale price¥2,980
宝石ガチャ💎プリンセスカットのトルマリン1石💎 3mm《複数購入割引有》

Gem Gacha💎Princess cut tourmaline 1 stone💎 3mm《Multiple purchase discount available》 Sale price¥2,980
宝石ガチャ💎クッションカットのトルマリン1石💎 4mm《複数購入割引有》

Gem Gacha💎1 cushion cut tourmaline stone💎 4mm《Multiple purchase discount available》 Sale price¥2,980
ジェムガチャ💎 アフガナイト1石 ルース（平均0.14ct）《複数購入割引有》

Gem Gacha💎 Afghanite 1 stone loose (average 0.14ct) {Multiple purchase discount available} Sale price¥9,800
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
《9石限定》ジェムガチャ『春色カラー』💎バイカラートルマリン1石 - カラッツSTORE

Only 1 left! Gem Gacha "Spring Colors" 💎 1 Bicolor Tourmaline (Multiple Purchase Discounts Available) Sale price¥6,980
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
Gem Gacha💎 Cat Set (1 gemstone + 2 sapphires) {Multiple purchase discounts available}

Gem Gacha💎 Cat Set (1 gemstone + 2 sapphires) {Multiple purchase discounts available} Sale price¥3,333
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
Sold out [Available at 10 PM on August 17th] Limited Edition 12 Stones Rare Stone Gacha💎 Benitoite, Zimbabwean Euclase, Brazilian Alexandrite, and Paraiba Tourmaline (Loose Stone) [Multiple Purchase Discounts Available]

[Available at 10 PM on August 17th] Limited Edition 12 Stones Rare Stone Gacha💎 Benitoite, Zimbabwean Euclase, Brazilian Alexandrite, and Paraiba Tourmaline (Loose Stone) [Multiple Purchase Discounts Available]

Sold out Limited Stock! Rare Stone Gacha with Certificate of Authenticity (Taaffeite, Bicolor Spinel, and Benitoite) - 1 Loose Stone (Multiple Purchase Discounts Available)

Limited Stock! Rare Stone Gacha with Certificate of Authenticity (Taaffeite, Bicolor Spinel, and Benitoite) - 1 Loose Stone (Multiple Purchase Discounts Available)

Sold out [Available at 10 PM on August 16th] [Limited to 9 stones] Spinel Gacha (August birthstone) including one bicolor spinel (0.93 ct) [Multiple purchase discounts available]

[Available at 10 PM on August 16th] [Limited to 9 stones] Spinel Gacha (August birthstone) including one bicolor spinel (0.93 ct) [Multiple purchase discounts available]

Sold out [8/10:22 Sale] {Limited to 5 Stones} Pentagon Cut Gacha (Sphene, Sunstone, Emerald, etc.) 1 Loose Stone {Multiple Purchase Discounts Available}

[8/10:22 Sale] {Limited to 5 Stones} Pentagon Cut Gacha (Sphene, Sunstone, Emerald, etc.) 1 Loose Stone {Multiple Purchase Discounts Available}
Sold out [Available at 10 PM on August 15th] Limited to 15 stones: One in five stones is a dandelion-cut spinel. Get one specially cut August birthstone spinel gacha (plus one mahenge spinel). Discounts available for multiple purchases.

[Available at 10 PM on August 15th] Limited to 15 stones: One in five stones is a dandelion-cut spinel. Get one specially cut August birthstone spinel gacha (plus one mahenge spinel). Discounts available for multiple purchases.
Sold out [Limited to 8 stones] Jam Gacha💎 1 Rainbow Garnet stone (January birthstone) from Tenkawa Village, Nara Prefecture [Multiple purchase discounts available]

[Limited to 8 stones] Jam Gacha💎 1 Rainbow Garnet stone (January birthstone) from Tenkawa Village, Nara Prefecture [Multiple purchase discounts available]
Sold out Includes phosphophyllite, red beryl 0.1ctup, pink diamond (FANCY LIGHT PURPLISH PINK), etc. Gem gacha 1 stone {Multiple purchase discount available}

Includes phosphophyllite, red beryl 0.1ctup, pink diamond (FANCY LIGHT PURPLISH PINK), etc. Gem gacha 1 stone {Multiple purchase discount available}
Sold out 《Only a few left》 Brazilian Paraiba Tourmaline (Batalia) Gacha💎1.2mm 1 out of 10 stones contains Cu&Mn (CuO:2.1%, MnO:0.9%/CuO:1.6%, MnO:1.5%) 《Multiple purchase discounts available》

《Only a few left》 Brazilian Paraiba Tourmaline (Batalia) Gacha💎1.2mm 1 out of 10 stones contains Cu&Mn (CuO:2.1%, MnO:0.9%/CuO:1.6%, MnO:1.5%) 《Multiple purchase discounts available》
Sold out Gem Gacha💎 1 Paraiba Tourmaline from Brazil (Batalha mine, 2.5-3.0mm, includes blue)

Gem Gacha💎 1 Paraiba Tourmaline from Brazil (Batalha mine, 2.5-3.0mm, includes blue)
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 3 Stones Gem Gacha💎Black Star Sapphire (including 12-ray star) Loose from Bangkacha, Thailand

Limited 3 Stones Gem Gacha💎Black Star Sapphire (including 12-ray star) Loose from Bangkacha, Thailand
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 Gem gacha cut by Shimizu Kiseki and Yoichi Fukazawa 💎 {Multiple purchase discounts available} {Halloween specials included}

Gem gacha cut by Shimizu Kiseki and Yoichi Fukazawa 💎 {Multiple purchase discounts available} {Halloween specials included}

Sold out Diamond gacha💎Fancy cut brown diamonds and FancyDarkBrown diamonds (with medium treasure chest)《Multiple purchase discount available》

Diamond gacha💎Fancy cut brown diamonds and FancyDarkBrown diamonds (with medium treasure chest)《Multiple purchase discount available》

Sold out Gem Gacha💎 Trapiche Diamond (Sliced ​​Diamond) 1 stone {Multiple purchase discount available}

Gem Gacha💎 Trapiche Diamond (Sliced ​​Diamond) 1 stone {Multiple purchase discount available}

Sold out 《残り4石》ジェムガチャ💎ジンバブエ産ソーヤブルダイヤモンド1石（正八面体,VS~SIクラス相当） - カラッツSTORE

Gem Gacha💎1 Zimbabwe sawable diamond (regular octahedron, VS~SI class equivalent)

Sold out Gem Gacha💎1 Paraiba Tourmaline from Brazil (Batalha Mine)

Gem Gacha💎1 Paraiba Tourmaline from Brazil (Batalha Mine)

Sold out Gem Gacha💎1 special fluorescent diamond (VS-SI class equivalent, 2.0mm)

Gem Gacha💎1 special fluorescent diamond (VS-SI class equivalent, 2.0mm)

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の取り組みと社会貢献

業界発展のための後進育成や事業協力、宝石の国スリランカの子どもたちへの支援活動など、KARATZの取り組みについてご紹介いたします。

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.