Sale

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

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

Caland "Semi-custom pinky ring frame" Sale price¥69,800

[Option] GIA certificate issuance fee Sale price¥15,000

shipping adjustment Sale price¥480

[Mr. Yukio Shimizu, representative of Shimizu Kiseki] Jewelry Shogi (Hand-polished Shogi) Sale price¥29,800

Diamond 0.348ct loose (I, SI1) Sale price¥59,800

[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

Cantera opal 17.221ct loose Sale price¥25,800

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

[Option] Certificate issuance fee Sale price¥2,750

First Star《Semi-Custom Pendant Frame》 Sale price¥59,800

Twin Stars《Semi-Custom Pendant Frame》 Sale price¥59,800

Lilium "Semi-custom pendant frame" Sale price¥59,800

EDEL Semi-custom pinky ring frame Sale price¥64,800

Marcato "Semi-custom ring setting" Sale price¥89,800

Staccato "Semi-custom ring setting" Sale price¥89,800

Elegante "Semi-custom ring setting" Sale price¥89,800

Bizarro "Semi-custom ring setting" Sale price¥89,800

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

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

H&C (Heart & Cupid) Diamond 2.0mm Loose (VS Class, DG Class, 2mm Melee Diamonds) {Multiple Purchase Discounts Available} Sale price¥7,980

1石から選ぶオーダーメイド《イヤリング・チェーンタイプ》申し込みページ～ Solo(ソロ) ～ - カラッツSTORE

Solo (Simple Order Earring Frame/Chain Type) Sale priceFrom ¥45,800

《単体購入不可》耐水ペーパー 3000番・5000番「自分で出来る原石磨きセットオプション専用」 - カラッツSTORE

[Cannot be purchased separately] Waterproof paper No. 3000/No. 5000 “For use with the do-it-yourself rough stone polishing set option” Sale price¥300

[Option] Non-heated inspection included Identification certificate issuance fee Sale price¥15,000

1石から選ぶオーダーメイド《ピアス》申し込みページ～ Solo(ソロ) ～ - カラッツSTORE

Solo (Simple Order Earrings Frame) Sale price¥29,800

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：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

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

Scapolite Cat's Eye 8.880ct Loose Sale price¥8,800

Charges for changing to paid shipping Sale price¥500

Euparite 193g Sale price¥39,800

[Option] Paraiba tourmaline analysis report attached identification certificate issuance fee Sale price¥15,000

Additional charges page Sale price¥15,000

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

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

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.