Under ¥5,000

Gem Gacha💎 Lepidolite in Quartz 1 stone《Multiple purchase discount available》 Sale price¥3,980

Lab-Grown Diamond (Synthetic Diamond) [HPHT Method] Single Loose Stone (2.0mm, 2.2mm, 2.4mm, 2.6mm) [Multiple Purchase Discounts Available] Sale priceFrom ¥1,580

Color change Andesine 1 stone (3mm, round cut)《Discount available for multiple purchases》 Sale price¥2,980

1 Dragon Garnet (3.5mm, round cut) {Multiple purchase discounts available} Sale price¥3,980

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

Rose cut diamond 1.2mm x 1 stone (VS-SI class, DH color, melee diamonds) {Multiple purchase discounts available} Sale price¥2,980

1 Ruby from Greenland (round cut, 1.2mm)《Discount available for multiple purchases》 Sale price¥2,280

Jeweler's tool "plate light" Sale price¥3,800

Labradorite 1 stone (spherical, 6mm) loose (multiple purchase discount available) Sale price¥2,980

Kyanite raw stone/loose 2 stone set《Multiple purchase discount available》 Sale price¥2,980

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

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

【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

Rose cut apatite 1 stone 3mm《Multiple purchase discount available》 Sale price¥1,980

[Option] Laser engraving of characters and symbols Sale price¥4,000

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

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

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

Additional charges (ring size) Sale price¥1,000

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

Synthetic moissanite 1 stone loose (mint green, pear shape cut, 5 x 7 mm, moissanite)《Multiple purchase discount available》 Sale price¥3,980

H&C（ハート&キューピッド）専用スコープ（ダイヤモンド専用スコープ) - カラッツSTORE

[Jeweler's Tools] H&C (Heart & Cupid) Special Scope (Diamond Special Scope) Sale price¥1,580

Ice blue diamond 1.2mm or 2.0mm 1 stone (VS class equivalent, round cut) {Multiple purchase discount available} Sale priceFrom ¥4,980

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：ホワイトラブラドライト）

Let's try gemstone polishing "Do-it-yourself rough stone polishing set" (for intermediate users: white labradorite) Sale price¥3,980

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

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」（初心者向け：フローライト・アパタイト2石セット）

Let's try gem polishing "Do-it-yourself rough stone polishing set" (for beginners: fluorite/apatite 2 stone set) Sale price¥2,980

1 stone loose pink spinel (princess cut, approx. 2.5mm)《Discount available for multiple purchases》 Sale price¥2,980

Diamond loose sorting transition fee Sale price¥3,000

【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

Petalite 1 stone loose (6mm, round cut)《Multiple purchase discount available》 Sale price¥2,580

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：アンデシン）

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

Additional charges page Sale price¥3,000

Let's try jewelry polishing "Do-it-yourself rough stone polishing set" (for beginners: fluorite 2 stone set) Sale price¥2,980

Let's try polishing gemstones with the "Do-it-yourself gemstone polishing kit" (for beginners: green apatite) Sale price¥2,980

[Jeweler's Tools] Digital Caliper Color Shift Amethyst 2 Piece Set Sale price¥2,980

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

ピンクオパール・ブルーオパール2石セット（小・大サイズ） - KARATZ STORE｜カラッツSTORE

Pink opal/blue opal 2 stone set (small/large size)《Discount available for multiple purchases》 Sale priceFrom ¥1,980

Additional charge for resizing Sale price¥750

[Jeweler's Tools] Color change penlight loose set Sale price¥4,980

【宝石商の道具】ペンライト（原石向け）・原石2点セット - KARATZ STORE｜カラッツSTORE

[Jeweler's Tools] Penlight (for rough stones), 2-piece set of rough stones Sale price¥4,980

Additional charge for resizing: 750 yen Sale price¥750

Additional charge for resizing: 1,500 yen Sale price¥1,500

Additional charge for resizing: 2,500 yen Sale price¥2,500

Alteration fee + ¥4,000 Sale price¥4,000

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

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.