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【8/1 22時販売】《限定5セット》蛍光ダイヤガチャ💎原石・ルース2石セット（2.4-3.4mm)《複数購入割有り》　

【8/1 22時販売】《限定5セット》蛍光ダイヤガチャ💎原石・ルース2石セット（2.4-3.4mm)《複数購入割有り》　 Sale price¥2,980
【8/2 22時販売】《限定8セット》宝石ガチャ💎三大宝石ガチャ1石＋ピンクサファイアの合計2石ルース《複数購入割引有》

【8/2 22時販売】《限定8セット》宝石ガチャ💎三大宝石ガチャ1石＋ピンクサファイアの合計2石ルース《複数購入割引有》 Sale price¥6,980
[On sale at 22:00 on 7/13] {Limited to 6 stones} Book "Gemstone Encyclopedia" Gacha💎 1 gemstone (rough stone) listed in the gemstone encyclopedia + 1 emerald rough stone, total of 2 stones

[On sale at 22:00 on 7/13] {Limited to 6 stones} Book "Gemstone Encyclopedia" Gacha💎 1 gemstone (rough stone) listed in the gemstone encyclopedia + 1 emerald rough stone, total of 2 stones 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 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 Sale price¥6,980
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
Limited to 12 pieces Diamond Gacha💎London Blue Diamond 1 loose stone (VS class equivalent, 2.0~3.2mm) Multiple purchase discounts available

Limited to 12 pieces Diamond Gacha💎London Blue Diamond 1 loose stone (VS class equivalent, 2.0~3.2mm) Multiple purchase discounts available Sale price¥5,980
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💎トルマリン1石（ハートシェイプ）ルース 《複数購入割引有》

Gem Gacha💎Tourmaline 1 stone (heart shape) loose stone {Multiple purchase discount available} Sale price¥3,980
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
Gem Gacha "April Birthstone" 💎 Fluorescent Yellow Diamond (Tapered Cut or Baguette Cut) 1 Stone {Multiple Purchase Discounts Available}

Gem Gacha "April Birthstone" 💎 Fluorescent Yellow Diamond (Tapered Cut or Baguette Cut) 1 Stone {Multiple Purchase Discounts 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

《9 stones only》Gem gacha "Spring colors"💎Bicolor tourmaline x 1《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 【8/1 22時販売】《月初限定企画》レアストーンガチャ💎ベニトアイト・ジンバブエ産ユークレース・ブラジル産アレキサンドライト1石ルース《複数購入割引有》

【8/1 22時販売】《月初限定企画》レアストーンガチャ💎ベニトアイト・ジンバブエ産ユークレース・ブラジル産アレキサンドライト1石ルース《複数購入割引有》
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 to 9 stones Diamond Gacha💎 1 loose treated diamond (ice blue, purple, etc. / 1.7-3.0mm) Multiple purchase discount available

Limited to 9 stones Diamond Gacha💎 1 loose treated diamond (ice blue, purple, etc. / 1.7-3.0mm) Multiple purchase discount available
Sold out Diamond Gacha💎London Blue Diamond 1 Loose Stone (VS~SI Class, Taper Cut or Bucket Cut, Treated) {Multiple Purchase Discounts Available}

Diamond Gacha💎London Blue Diamond 1 Loose Stone (VS~SI Class, Taper Cut or Bucket Cut, Treated) {Multiple Purchase Discounts Available}
Sold out Limited to 11 stones Diamond Gacha💎 Single cut diamond (VS~I class, 1.8-1.9mm) Multiple purchase discount available

Limited to 11 stones Diamond Gacha💎 Single cut diamond (VS~I class, 1.8-1.9mm) Multiple purchase discount available

Sold out Diamond Gacha💎Rose cut diamond (VS~SI class, 2.0-3.6mm) {Multiple purchase discount available}

Diamond Gacha💎Rose cut diamond (VS~SI class, 2.0-3.6mm) {Multiple purchase discount available}
Sold out Limited to 10 stones Gem gacha💎 Brazilian Paraiba tourmaline 1 stone loose (2.0-2.7mm) Multiple purchase discounts available

Limited to 10 stones Gem gacha💎 Brazilian Paraiba tourmaline 1 stone loose (2.0-2.7mm) Multiple purchase discounts available
Sold out {7th Anniversary Special}💎[On sale from 10pm on 12/8] Gem Gacha💎 Chameleon diamonds, pink diamonds, benitoite, etc. (plus one Brazilian alexandrite) {Multiple purchase discounts available}

{7th Anniversary Special}💎[On sale from 10pm on 12/8] Gem Gacha💎 Chameleon diamonds, pink diamonds, benitoite, etc. (plus one Brazilian alexandrite) {Multiple purchase discounts available}
Sold out Sea Creatures Gacha 1 Stone (Agate, Australian Opal) {Multiple purchase discounts available}

Sea Creatures Gacha 1 Stone (Agate, Australian Opal) {Multiple purchase discounts available}
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 Limited to 21 stones [Kitty Gacha] Cat cut, blue opal, jade, chalcedony, etc. (One in four people will also receive a paw set) [Multiple purchase discounts available]

Limited to 21 stones [Kitty Gacha] Cat cut, blue opal, jade, chalcedony, etc. (One in four people will also receive a paw set) [Multiple purchase discounts available]
Sold out Limited to 13 stones! Sapphire Gacha! 1 loose unheated Sri Lankan sapphire stone. Multiple purchase discounts available.

Limited to 13 stones! Sapphire Gacha! 1 loose unheated Sri Lankan sapphire stone. Multiple purchase discounts available.
Sold out Gem Gacha - Afghanistan Green Awinite (Green) 1 Stone Loose {Multiple Purchase Discounts Available}

Gem Gacha - Afghanistan Green Awinite (Green) 1 Stone Loose {Multiple Purchase Discounts Available}
Sold out Diamond Gacha💎Diamond rough (including sawable and makeable diamonds, one in two people will receive an additional 1.6-1.7mm VS-SI class diamond) {Multiple purchase discount available}

Diamond Gacha💎Diamond rough (including sawable and makeable diamonds, one in two people will receive an additional 1.6-1.7mm VS-SI class diamond) {Multiple purchase discount available}

Sold out Pink Sapphire Gacha💎 (1 Padparadscha Sapphire 0.215ct with DGL Certificate) 1 Loose Stone {Multiple Purchase Discounts Available}

Pink Sapphire Gacha💎 (1 Padparadscha Sapphire 0.215ct with DGL Certificate) 1 Loose Stone {Multiple Purchase Discounts Available}
Sold out Pink Sapphire Gacha💎 (1 Padparadscha Sapphire 0.322ct with DGL Certificate) 1 Loose Stone {Multiple Purchase Discounts Available}

Pink Sapphire Gacha💎 (1 Padparadscha Sapphire 0.322ct with DGL Certificate) 1 Loose Stone {Multiple Purchase Discounts Available}
Sold out Gem Gacha💎 Synthetic moissanite cut by Sri Lankan cutter Sanjay (plus 1 synthetic moissanite stone guaranteed) {Multiple purchase discounts available}

Gem Gacha💎 Synthetic moissanite cut by Sri Lankan cutter Sanjay (plus 1 synthetic moissanite stone guaranteed) {Multiple purchase discounts 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

多くの方が宝石を身近に感じ、気軽に楽しめるように。
KARATZの商品に対する思い、宝石選定やジュエリー制作におけるこだわり、取り組みなどについてご紹介します。

KARATZの書籍

KARATZが執筆や監修、企画に携わった書籍たち。宝石をさまざまな角度から楽しめる書籍ばかりです。直接ご購入もいただけます。

宝石商の道具

宝石をもっと楽しみたいけど、どんな道具を使えば良いか分からない方へ。KARATZスタッフも愛用する道具をご紹介。直接ご購入もいただけます。