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Vertical: 3.1 - 4.0mm

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Sold out ベトナム産非加熱シルキーピンクサファイア 0.178ctルース
Sold out メキシコ産メキシコ産ニフォントバイト 0.151ctルース
Sold out アメリカ産レッドベリル 0.120ctルース
Sold out 【12558711掲載】ドゥニライト 0.132ctルース
Sold out 【12561951掲載】アメリカ産アントヒルガーネット 0.370ctルース
Sold out 0.084ct loose green diamond (FANCY GRAY GREEN, I-1)
Sold out Kenyan Tsavorite 0.164ct Loose Stone
Sold out Cambodian Blue Zircon (Ratanakiri Blue) 0.354ct Loose Stone
Sold out Synthetic rutile 3.9mm/0.329ct loose stone
Sold out German Auyinite 3.5mm/0.131ct Loose Stone
Sold out Lazulite (0.077ct) from Pakistan, loose
Sold out Myanmar Red Spinel 0.196ct Loose Stone
Sold out Pink sapphire (with hematite) 0.271ct loose stone
Sold out Diamond rough (makeable) 0.353ct rough
Sold out Cornflower Blue Sapphire 0.370ct Loose AIGS
Sold out Ruby 3.3mm/0.171ct Loose
Sold out 0.243ct Colombian Emerald Pair Loose Stones
Sold out 0.316 ct Tanzanian Bicolor Grossular Garnet Loose Stone
Sold out U.S. Red Beryl 3.2mm/0.111ct Loose Stone
Sold out Grandidierite from Madagascar 0.269ct loose stone
Sold out Pigeon blood ruby ​​0.310ct loose
Sold out Pigeon's Blood Ruby 4.0mm/0.230ct Loose AIGS
Sold out パパラチアサファイア 0.191ctルース
Sold out 0.278 ct loose Nigerian cobalt gahnite with Japanese and German appraisals
Sold out Ruby 0.258ct loose
Sold out Unmounted American Anthill Garnet, 4.0mm/0.269ct
Sold out USA Ant Hill Garnet 4.0mm/0.277ct Loose Stone
Sold out Unheated Vietnamese Silky Pink Sapphire 0.291ct Loose Stone
Sold out 0.218ct Unheated Silky Pink Sapphire from Vietnam
Sold out 0.168ct Unheated Silky Pink Sapphire from Vietnam
Sold out Bekiri Blue Garnet (Color Change Garnet) from Madagascar 0.150ct Loose
Sold out Madagascar Bekily Blue Garnet (Color Change Garnet) 0.132ct Loose Stone
Sold out キャシテライト 0.571ctルース
Sold out Kenyan Tsavorite 0.157ct Loose Gemstone
Sold out 0.245ct rough diamond (with trigon)
Sold out Tanzanian Kornerupine 0.103ct Loose Stone
Sold out Afghanistan Blue Tourmaline 4.0mm/0.268ct Loose Stone (Lagoon Tourmaline)
Sold out Brazilian Paraiba tourmaline 0.128ct loose stone (CuO: 1.7%, MnO: 3.4%)
Sold out German Auchenite 0.083ct loose stone
Sold out German Apatite 3.1mm/0.100ct Loose Stone
Sold out [On Sale at 10 PM on December 7th] Madagascar Andesine Labradorite Moonstone (also known as Rainbow Moonstone) 0.178ct Loose Stone
Sold out Madagascar Bicolor Sapphire 3.6mm/0.232ct Loose
Sold out Internally Flawless Diamond (H&C) 3.8mm/0.210ct Loose (F, IF, 3 Excellent H&C) GIA & Chuho
Sold out ナイジェリア産グリーンベリル 0.258ctルース
Sold out カシミール産非加熱サファイア 0.260ctルース
Sold out カシミール産非加熱サファイア 0.210ctルース
Sold out スリランカ産ブルーサファイア(アイスブルー) 0.300ctルース
Sold out アフガニスタン産アフガナイト 0.077ctルース

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.