Ta line

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Limited Edition of 12: Brazilian Indigolite Tourmaline Loose Stone (4x3mm, Oval Cut) - Multiple Purchase Discounts Available

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Limited to 20 stones: Russian Demantoid Garnet (Horsetail inclusions, approximately 2mm) - 1 loose stone. Discounts available for multiple purchases.

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Limited to 20 stones, Brazilian dendritic quartz, 1 loose stone, multiple purchase discounts available

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《Limited to 16 stones》1 tanzanite stone (octagonal cut, 3.0mm)《Multiple purchase discount available》

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[Limited Quantity Remaining] 《Limited to 12 Stones》Topaz Gacha (including Imperial Topaz) where you can win a Koshu Kiski Kiriko plusthree "Akatsuki" (usually 35,800 yen) 《Multiple Purchase Discount Available》

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《Limited to 12 Stones》Rare Stone Gacha 💎 Cinnabar from China, Paraiba Tourmaline from Mozambique, Grandidierite, etc.《Multiple Purchase Discount Available》

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Imperial Topaz Gacha: Win a Pink Imperial Topaz, normally priced at 69,800 yen (Multiple purchase discounts available)

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Loose Kenyan Tsavorite 4.0mm/0.357ct

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0.328ct Tanzanite Loose Stone from Tanzania

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Brazilian Seafoam Tourmaline 0.347ct Loose Stone

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Mozambique Elbaite Tourmaline 1.793ct Loose Stone

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Tanzanian Chrome Tourmaline 0.760ct Loose Stone

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Brazilian Bi-Color Tourmaline 3.785ct Loose Stone

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"Limited to 11 Stones" Carving Gacha💎 Blue Topaz Strawberry Cut 43ct, Amethyst Flower Cut, Plumeria Cut, etc., normally 29,800 yen (with bonus special cut blue topaz 8-10mm) "Multiple Purchase Discount Available"

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Brazilian Imperial Topaz 3.999 ct Loose Gemstone with Certificate

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ロシア産デマントイドガーネットキャッツアイ（ホーステール認む） 0.200ctルース

Russian Demantoid Garnet Cat's Eye (Horsetail Recognized) 0.200ct Loose

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Brazilian Paraiba Tourmaline 0.036ct Loose (CuO:1.6%, MnO:3.1%)

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Brazilian Paraiba Tourmaline 0.035ct Loose (CuO:2.4%,MnO:2.5%)

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【12562862掲載】コロンビア産トラピッチェエメラルド 0.448ctルース

Colombian Trapiche Emerald, 0.446 ct, Loose Stone, with Certificate

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Tanzanian Chrome Tourmaline 0.522ct Loose Stone

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[COLORFLE] Pt950 Brazil Bi-Color Emerald 1.084ct / Ice Blue Diamond 0.062ct Ring

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【Calafull】Pt900 Brazilian Paraiba Tourmaline 0.11ct, Diamond 0.58ct Ring (CuO:2.4%, MnO:0.9%)

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[ColorFleuri] K14WG Blue Sapphire 0.22ct Pendant (Necklace)

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Brazil London Blue Topaz 5.978ct Loose Stone

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星が浮かび上がる「WISH UPON A STAR®」3.5mm/0.166ct/F/VS1 ダイヤモンド　鑑定書

[Karafuri] "WISH UPON A STAR®" 3.5mm/0.166ct/F/VS1 Diamond with Certification

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Limited to 12 stones! Shinizu Kiseki's Sakura In-Cut Tourmaline Gacha (with bonus Tourmaline from Mr. Sanje) (Multiple purchase discount available)

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Flawless Diamond (H&C) 4.0mm/0.266ct Loose (D, FL, 3 Excellent H&C) GIA & Chuhokan

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[Posted in 32501164] Diamond 0.141ct loose (E, VVS-2, EXCELLENT)

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Turkish Diaspore Loose Stone, 0.757 ct

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Turkish Color Change Diaspore 0.339ct Loose Stone

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Color-Change Diaspore from Turkey 1.085ct Loose Stone

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Pt950 アウイナイト 0.24ct・ダイヤモンド0.18ctリング鑑別カード

【Colorflly】Pt950 Hauynite 0.24ct・Diamond 0.18ct Ring with Appraisal Card

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[Colorful] Pt900 Diamond 0.50ct Ring

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Diamond 3.8mm/0.319ct Loose (F, SI-1, Princess Cut)

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【32501905掲載】ブルーダイヤモンド（トリートメント） 0.801ctルース(FANCY INTENSE GREEN BLUE, SI-2)

Sky Blue Diamond (Treated) 0.801ct Loose Stone (FANCY INTENSE GREEN BLUE, SI-2) Certificate

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Brazilian Paraiba Tourmaline 0.177ct loose stone (CuO: 2.1%, MnO: 1.3%)

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Internally Flawless Diamond (H&C) 4.3mm/0.300ct Loose (D, IF, 3Excellent H&C) GIA&CGL

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ダイヤモンド（H&C） 0.200ctルース(D, VVS-2, 3Excellent H&C)

Diamond (H&C) 3.8mm/0.200ct Loose (D, VVS-2, 3Excellent H&C) CBT

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Diamond 4.3mm/0.310ct Loose (E, VS1, 3Excellent) GIA

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ダイヤモンド 3.0mm/0.101ctルース(D, VVS-2, VeryGood)

Diamond 3.0mm/0.101ct Loose Stone (D, VVS-2, VeryGood)

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Diamond 3.0mm/0.095ct Loose (F, VS-2, Excellent)

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【32501889掲載】ダイヤモンド（H&C） 0.194ctルース(G, VVS-1, 3Excellent H&C)

Diamond (H&C) 3.7mm/0.194ct Loose (G, VVS-1, 3Excellent H&C)

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フローレスダイヤモンド（H&C） 0.230ctルース(D, FL, 3Excellent H&C)

Flawless Diamond (H&C) 4.0mm/0.230ct Loose (D, FL, 3Excellent H&C) GIA & Central Gem Laboratory

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【32501881掲載】インターナリーフローレスダイヤモンド（H&C） 0.340ctルース(F, IF, 3Excellent H&C)

Internally Flawless Diamond (H&C) 4.5mm/0.340ct Loose (F, IF, 3Excellent H&C) GIA & CBT

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[Colorful] Pt900 Pink Diamond 0.008ct・Diamond 0.03ct Pendant (Necklace) with Identification Card

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.