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Sold out コロンビア産エメラルド 0.121ctルース
Sold out タンザニア産コーネルピン 0.241ctルース
Sold out パキスタン産ペリドット 5.0mm/0.517ctルース
Sold out アフガニスタン産クンツァイト 0.753ctルース
Sold out スリランカ産ブルーサファイア 0.555ctルース
Sold out 中国産辰砂(シンシャ・シナバー) 1.166ctルース(ファセットカット) 鑑別書
Sold out 中国産辰砂(シンシャ・シナバー)0.884ctルース(ファセットカット) 鑑別書
Sold out マダガスカル産ブルーアパタイト 0.527ctルース
Sold out コロンビア産エメラルド 3.9mm/0.200ctルース
Sold out ブラジル産デュモルチェライトインクォーツ 1.909ctルース
Sold out ヴァイオレットサファイア 0.310ctルース
Sold out タンザニア産タンザナイト 0.637ctルース
Sold out ブラジル産インペリアルトパーズ 3.287ctルース
Sold out ナイジェリア産コバルトガーナイト 0.299ctルース 鑑別書
Sold out ナイジェリア産モルガナイト 0.354ctルース
Sold out 【猫カット】タイ産サファイア 5.255ctルース
Sold out Limited to 18 stones, Russian Phenakite rough, average 2.7ct, 1 stone, multiple purchase discounts available
Sold out Limited to 16 stones: 1 Montana sapphire loose stone (including teal blue and bicolor) Multiple purchase discounts available
Sold out Limited to 7 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases.
Sold out [Limited to 7 stones] Oregon Sunstone from the United States (cabochon cut, average 1.5ct) [Multiple purchase discount available]
Sold out Brazilian unheated Imperial Topaz 1 stone loose stone {Multiple purchase discount available}
Sold out Limited quantity: Mozambique grape garnet, 1 loose stone (4 x 6 mm, pear-shaped cut) Multiple purchase discounts available
Sold out Limited to 9 stones: One loose Brazilian rainbow aquamarine (oval cut, average 0.8 carats) [Multiple purchase discounts available]
Sold out Brazilian Rainbow Aquamarine Loose Stone (Iridescent Aquamarine) (Multiple Purchase Discounts Available)
Sold out Limited to 10 stones: Blue Spinel Gacha, Cobalt Spinel (including color-shifting type), 2 stones with Japanese and German appraisal certificates, and a bonus synthetic cobalt spinel. Discounts available for multiple purchases.
Sold out [Available at 10 PM on November 30th] Rare Stone Gacha 💎 Cinnabar, Brazilian Paraiba Tourmaline 0.21ct, Red Beryl, Benitoite, and Axinite (Multiple Purchase Discounts Available)
Sold out 【12/7 22時販売】《限定10石》ブルー宝石ガチャ💎ブラジル産パライバトルマリン0.142ct・ジンバブエ産ユークレース・1.17ctのコバルトスピネル(鑑別書付:カラーシフト)・ベニトアイトなど《複数購入割引有》
Sold out Limited to 9 stones: 1 colorless apatite loose stone from Madagascar (average 0.30ct, many inclusions) Multiple purchase discounts available
Sold out Gem Gacha💎 1 Paraiba Tourmaline from Brazil (Batalha mine, 2.5-3.0mm, includes blue)
Sold out [Limited to 8 stones] Jam Gacha💎 1 Rainbow Garnet stone (January birthstone) from Tenkawa Village, Nara Prefecture [Multiple purchase discounts available]
Sold out 《再販売》ハイヒール(ロッククリスタル)1石《宝石ハイヒール1個 - カラッツSTORE
Sold out Limited Edition of 11 Rare Stones! 💎 Two 0.23ct Paraiba Tourmalines from Batalha, Brazil, a Pink Diamond, and a Benitoite Loose Stone. Discounts available for multiple purchases.
Sold out Limited Edition of 10 Bicolor Gacha! 💎 Includes two Zimbabwean euclase stones (average 0.088ct), a 1.03ct bicolor sapphire, a bicolor chrysoberyl, and more. Discounts available for multiple purchases.
Sold out [On sale at 10 PM on November 15th] Limited to 8 stones: 1 loose Brazilian ametrine (concave cut, average 10 carats) [Multiple purchase discounts available]
Sold out [Available at 10 PM on December 20th] Limited Edition 10 Stones Rare Stone Gacha💎 Shinsha, Zimbabwean Euclase, Red Beryl, Star Peridot, and More! Discounts Available for Multiple Purchases
Sold out Limited to 7 stones: 1 loose Sri Lankan spinel (lozenge cut) stone. Discounts available for multiple purchases.
Sold out Limited to 7 stones: 1 loose kyanite stone from Nepal (royal blue color, 4mm, round cut) Multiple purchase discounts available
Sold out Limited to 5 stones: 1 green zircon from Sri Lanka. Discounts available for multiple purchases.
Sold out Limited to 9 stones: 1 London Blue Diamond Loose (VS-SI class equivalent, 2.0mm) Multiple purchase discounts available
Sold out Limited to 5 stones: 1 Mexican Hyalite Opal loose stone (average 0.5ct) Multiple purchase discounts available
Sold out [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 7 stones! May birthstone special offer! Colombian emerald cat's eye, 1 loose stone (highly transparent cat's eye) Multiple purchase discounts available
Sold out Limited to 8 stones: 1 Sri Lankan star sapphire loose stone (5mm, round cabochon cut) Multiple purchase discounts available
Sold out Limited to 9 stones: One loose Brazilian rainbow aquamarine (average 1.0 carat, pear cut) [Multiple purchase discounts available]
Sold out Color Change Gacha💎 Burmese Color Change Zircon, Color Shift Sapphire, Color Shift Cobalt Spinel, and More (Multiple Purchase Discounts Available)
Sold out Limited to 10 stones: Greenland Ruby (2mm, with certificate issued by the mine owner) - 1 loose stone - Multiple purchase discounts available
Sold out [On Sale November 1st at 10 PM] Oregon Sunstone Gacha Loose Stone (Average 1.60ct) Including Koshu Precious Stones Cut Plus Three and Vortex Cut (Multiple Purchase Discounts Available)
Sold out [12/19 10 PM Sale] [Limited to 10 Stones] Zimbabwean Bicolor Euclase, Bicolor Sapphire, and More Bicolor Gacha 💎 Single Loose Stone [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

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.