New stock

Purple spinel 0.424ct loose (rose cut) Sale price¥9,800

Pink tourmaline 0.391ct loose Sale price¥5,980

Pigeon Blood Ruby 0.590ct Loose AIGS Sale price¥55,800

パイロープ・スペサルティンガーネット（カラーチェンジガーネット） 1.707ctルース

Pyrope spessartine garnet (color change garnet) 1.707ct loose Sale price¥45,800

パイロープ・スペサルティンガーネット（カラーチェンジガーネット） 1.297ctルース

Pyrope spessartine garnet (color change garnet) 1.297ct loose Sale price¥39,800

パイロープ・スペサルティンガーネット（カラーチェンジガーネット） 1.234ctルース

Pyrope spessartine garnet (color change garnet) 1.234ct loose Sale price¥35,800

パイロープ・スペサルティンガーネット（カラーチェンジガーネット） 1.171ctルース

Pyrope spessartine garnet (color change garnet) 1.171ct loose Sale price¥35,800

宝石研磨に挑戦してみよう「自分で出来る原石磨きセット」（中級者向け：プレーナイト・葡萄石）

Let's try jewelry polishing "Do-it-yourself rough stone polishing set" (for intermediate users: playnite/grape stone) Sale price¥2,980

[Konpeito] Iolite 3.170ct loose Sale price¥27,800

Synthetic black moissanite (black moissanite) 1 stone loose (2.5mm, round cut)《Multiple purchase discount available》 Sale price¥2,980

Emerald 0.111ct loose Sale price¥14,800

Amethyst/Citrine 4mm (Epicot cut) 2 stone set《Multiple purchase discount available》 Sale price¥1,980

1 stone loose spinel from Myanmar (Pentagonal cut)《Discount available for multiple purchases》 Sale price¥3,980

《再入荷》【宝石商の道具】ゲルタックケース3個セット《透明・黒背景の2種類有》（ブルーサファイア3石付） - カラッツSTORE

[Jeweler's Tools] Set of 3 gel tack cases (2 types: transparent and black background) (includes 3 blue sapphires) (discount available for multiple purchases) Sale price¥3,980

Pink sapphire 0.934ct loose Sale price¥19,800

Scapolite 1.780ct loose stone Sale price¥12,800

【KEN氏】メキシコ産ファイアオパール 1.580ctルース - カラッツSTORE

Mexican Fire Opal 1.580ct Loose Sale price¥35,800

Orthoclase 3.711ct loose stone, Japan-Germany exchange Sale price¥19,800

【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

Montebrasite 1 stone (4.5mm, round cut) {Multiple purchase discount available} Sale price¥3,980

【カラフリ】Pt950アレキサンドライト0.08ct リング - カラッツSTORE

[Colorful] Pt950 Alexandrite 0.08ct ring Sale price¥98,000

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

Let's try the fossil mining experience "Do-it-yourself fossil excavation experience set" + bonus of fossil stickers, simple black light, and amber (copal) [Multiple purchase discounts available] Sale price¥2,980

Zircon 0.426ct loose stone Sale price¥5,980

Pink spinel 0.290ct loose Sale price¥7,980

Purple spinel 0.210ct loose Sale price¥6,980

Lavender spinel 0.160ct loose Sale price¥5,980

Cornelpine 0.520ct rough stone Sale price¥3,980

Cornerpine 0.890ct rough stone Sale price¥5,980

Cornelpine 0.880ct rough stone Sale price¥3,980

Cornelpine 0.740ct rough stone Sale price¥3,980

Cornerpine 0.400ct rough stone Sale price¥2,980

Cornerpine 0.730ct rough stone Sale price¥2,980

Cornelpine 0.490ct rough stone Sale price¥2,980

Benitoite 1 stone (princess cut, 2.2mm)《Discount available for multiple purchases》 Sale price¥18,800

Benitoite 1 stone (round cut, 2.0mm)《Multiple purchase discount available》 Sale price¥12,800

Rose quartz 8.640ct loose Sale price¥3,980

1 green opal from Amazon《Discount available for multiple purchases》 Sale price¥2,980

Pink opal 7.180ct loose Sale price¥8,800

Andalusite 5mm/0.480ct loose Sale price¥5,980

ピンクダイヤモンド 0.191ctルース(VERY LIGHT ORANGY PINK, SI2)

Pink diamond 0.191ct loose (VERY LIGHT ORANGY PINK, SI2) Sale price¥59,800

Morganite 1 stone (oval cut, 5 x 7mm)《New birthstone for April》《Discount available for multiple purchases》 Sale price¥3,980

1 stone pink amethyst (checkerboard cut, approx. 10ct, 14 x 14mm)《Discount available for multiple purchases》 Sale price¥4,980

Green Diamond (Treatment) 1 stone (approx. 1.3mm)《Multiple purchase discount available》 Sale price¥3,580

1 beryllium diffused sapphire stone (approximately 2.5mm, round cut)《Multiple purchase discounts available》 Sale price¥1,580

【宝石商の道具】ダイヤルゲージ（ルースやビーズの計測）・ルース（ピラミッドカット）セット

[Jeweler's Tools] Dial Gauge (Measuring Loose and Beads) Loose (Pyramid Cut) Set Sale price¥3,980

Sea blue chalcedony 6.964ct loose Sale price¥7,980

H&C (Hearts & Cupids) Diamond 1.2mm Loose (VS Class, DG Class, Melee Diamonds) {Multiple Purchase Discounts Available} Sale price¥3,980

Synthetic moissanite 1 stone loose (mint green, oval cut, 6 x 4 mm, moissanite)《Multiple purchase discount available》 Sale price¥3,980

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.