0.1ct - 2.0ct

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Madeira Citrine 7mm/1.132ct loose

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Madeira Citrine 7mm/1.061ct loose

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パイロープ・スペサルティンガーネット（カラーチェンジガーネット） 0.860ctルース

Pyrope spessartine garnet (color change garnet) 0.860ct loose

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Unheated silky pink sapphire from Vietnam 0.424ct loose

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Unheated ruby from Vietnam 0.247ct loose

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カメレオンダイヤモンド・グリーンダイヤモンド 3.8mm/0.229ctルース(FAINT GRAY GREEN, VS-1)

Chameleon Diamond/Green Diamond 3.8mm/0.229ct Loose (FAINT GRAY GREEN, VS-1)

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Brazilian pink euclase 0.108ct loose

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Brazilian pink euclase 0.141ct loose

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Gray spinel (platinum spinel) 0.283ct loose

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ロシア産デマントイドガーネット（ホーステール認む） 3.2mm/0.143ctルース

Russian demantoid garnet (horsetail recognized) 3.2mm/0.143ct loose

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[KEN] Opal from Mexico 4.8mm/0.276ct loose

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[KEN] Opal from Mexico 4.3mm/0.201ct loose

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Blue tourmaline from Afghanistan 4.5mm/0.329ct loose

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[KEN] American peridot 0.546ct loose (with lily pad)

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Paracytic Peridot (Parasite Peridot) 0.256ct Loose Japanese-German Edition

Paracytic Peridot (Parasite Peridot) 0.576ct Loose Japanese-German Edition Sale price¥298,000

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[Lottery sale] Winners exclusive page 90000995

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[Lottery sale] Winners exclusive page 90000994 08CP

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Ice blue sapphire from Madagascar 4.3mm/0.408ct loose

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Ice blue sapphire 4.3mm/0.406ct loose

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Color change sapphire 0.777ct loose

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Pink sapphire from Mozambique 0.226ct loose (hot pink sapphire)

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グレーダイヤモンド 3mm/0.109ctルース(VERY LIGHT GRAY, SI-1)

Gray Diamond 3mm/0.109ct Loose (VERY LIGHT GRAY, SI-1)

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ピンクダイヤモンド 0.133ctルース(FANCY INTENSE PURPLE PINK, I-1)

Pink diamond 0.133ct loose (FANCY INTENSE PURPLE PINK, I-1)

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Pink diamond 0.150ct loose (FANCY LIGHT PURPLE PINK, I-1)

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ダイヤモンド 0.328ctルース(VERY LIGHT YELLOW, VS1)

Diamond 0.328ct loose (VERY LIGHT YELLOW, VS1, lily cut)

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[Mr. Sanjay] Australian opal 7.1mm/0.817ct loose

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[Mr. Sanjay] Opal from Mexico 0.468ct loose

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[Mr. Sanjay] Pink tourmaline 0.551ct loose

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[Mr. Sanjay] Almandine garnet 1.519ct loose

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[Mr. Sanjay] Almandine garnet 1.192ct loose

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[Mr. Sanjay] Almandine Garnet 6.1mm/1.225ct Loose

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[Mr. Sanjay] Almandine garnet 5.6mm/0.966ct loose

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[Mr. Sanjay] Almandine garnet 6.6mm/1.576ct loose

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[Mr. Sanjay] Ice blue sapphire 6.2mm/1.009ct loose

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[Mr. Sanjay] Lepidocrocite in quartz 6.3mm/0.986ct loose

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Lepidocrocite in quartz 6.1mm/1.115ct loose

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【サンジェ氏】サンストーン（イリュージョンサンストーン） 6.5mm/0.942ctルース

[Mr. Sanjay] Sunstone (Illusion Sunstone) 6.5mm/0.942ct Loose

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[Mr. Sanjay] Dragon garnet 0.829ct loose

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[Mr. Sanjay] Iolite Sunstone 5mm/0.358ct Loose

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[Mr. Sanjay] Iolite sunstone 0.393ct loose

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[Mr. Sanjay] Purple Spinel 0.498ct Loose

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[Mr. Sanjay] Santa Maria Aquamarine 0.317ct loose

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[Mr. Sanjay] Rock Crystal 6.5mm/0.951ct Loose (Dumortierite in Quartz)

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.

The fifth reprint has been decided and is now on sale at bookstores nationwide and online.

Written by KARATZ, book “Jewelry Illustrated Book”

The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.

KARATZ・Five Commitments