¥50,000 - ¥100,000

[Published 12563933] Brazilian Rubellite 1.100ct Loose Stone Sale price¥98,000

[Listed on 12563962] Madagascar Padparadscha Sapphire 0.314 ct Loose Stone Sale price¥69,800

[12563993] Cambodian Blue Zircon 3.546ct Loose Sale price¥69,800

Colombian Pyrite, Mica in Emerald 1.192ct Loose Stone with Certificate Sale price¥79,800

Afghan Green Hauyne 0.150ct Loose Stone with Certificate Sale price¥55,800

Pt900 アコヤ真珠（アコヤパール）10.2mm・ダイヤモンド0.23ctリング鑑別書

[Published in 22602657] [Colorful] Pt900 Akoya Pearl Ring Sale price¥98,000

Pt850/K14WG アップルグリーンダイヤモンド0.38ct・ダイヤモンド0.50ct ピアス鑑別書

[COLORFUL] Pt850/K14WG Apple Green Diamond 0.38ct Diamond 0.50ct Earrings with Certificate of Appraisal Sale price¥98,000

Colombia Emerald 4.5mm/0.286ct Loose Stone (Hokikyō) Sale price¥69,800

[22602668 listed] [Colorful] K18 Tanzanite 0.25ct Ring Sale price¥79,800

[Posted on 32501949] Diamond 0.310ct Loose Stone (E, VS1, 3Excellent) GIA Sale price¥88,800

[Published on 12563087] Unheated Ruby 0.216ct Loose Stone Sale price¥59,800

[Listed on 12563726] Sri Lankan Purple Sapphire 0.661ct Loose Stone Sale price¥59,800

[22602667 Posted] [Colorful] Pt900 Hauyne 0.035ct Ring Sale price¥89,800

ダイヤモンド 4.3mm/0.310ctルース(D, VS1, Excellent) GIA

[Lottery Sale 0707_02] Diamond 0.310ct Loose (D, VS1, Excellent) GIA Sale price¥89,800

ダイヤモンド 4.0mm/0.250ctルース(D, VVS1, 3Excellent) GIA

[Lottery Sale 0707_01] Diamond 0.250ct Loose Stone (D, VVS1, 3Excellent) GIA Sale price¥79,800

1.082ct Loose Australian Black Opal with Certification Sale price¥69,800

カメレオンダイヤモンド 4.0mm/0.255ctルース(LIGHT GRAYISH GREEN YELLOW, VS2)

[For xxx only] Chameleon Diamond 0.255ct Loose (LIGHT GRAYISH GREEN YELLOW, VS2) (Listed under 32501581) Sale price¥59,800

ピンクダイヤモンド 0.075ctルース(FANCY PURPLE PINK, SI1)

Pink Diamond 0.075ct Loose (FANCY PURPLE PINK, SI-1) Sale price¥79,800

Brown Diamond 0.778ct Loose Stone (FANCY BROWN, SI-1) Sale price¥59,800

American Oregon Sunstone 10.8mm/4.864ct Loose Sale price¥98,000

Sphalerite from Bulgaria 7.0mm/1.790ct Loose Stone Sale price¥59,800

Kochi Prefecture-produced red coral (Boke) 4.485ct loose gemstone Sale price¥98,000

Pt850 ブルーサファイア 0.66ct・ダイヤモンド0.19ctリング鑑別書

[22602646 listed] [Karafuri] Pt850 Blue Sapphire 0.66ct Ring Sale price¥59,800

[Listed as 12562693] Malawi Bicolor Zircon 1.434ct Loose Sale price¥79,800

[Lottery Sale_0612_01] Madagascar Bekily Blue Garnet (Color Change Garnet) 0.542ct Loose Sale price¥55,800

【Carat Fleur】 K18 Sliced Diamond and Yellow Sapphire Earrings with Certificate Sale price¥55,800

Pt900 ブラックオパール 0.58ct ペンダントトップ（ネックレストップ）鑑別書

【Colorfleur】Pt900 Black Opal 0.58ct Pendant Top with Authenticity Card Sale price¥55,800

Pt900 ブラックオパール 0.66ct ペンダントトップ（ネックレストップ）鑑別書

[COLORFUL] Pt900 Black Opal 0.66ct Pendant Top (Necklace Top) with Identification Card Sale price¥55,800

Brazilian Paraiba Tourmaline 2.9mm/0.090ct Loose (CuO:1.7% MnO:1.4%) Sale price¥69,800

Tanzanian Mahenge Spinel (Pink Spinel) 0.566ct Loose Stone with Certification Sale price¥55,800

Madagascar Padparadscha Sapphire 4.5mm/0.416ct Loose Gemstone, Central Gemology Laboratory certified Sale price¥98,000

[Listed on 22602645] [Colorful] Pt900 Ruby 0.6ct Ring Sale price¥98,000

Pt950 ムーンストーンキャッツアイ 3ct ・ムーンストーンキャッツアイリング鑑別書

[Listed as 22602642][Colorful] Pt950 Moonstone Cat's Eye 3ct Ring Sale price¥79,800

Pt900 ブルーサファイア 0.43ct・ダイヤモンド0.44ctリング鑑別書

[Item ID: 22602630] [Karafuri] Pt900 Blue Sapphire 0.43ct Ring Sale price¥98,000

Pt900グロッシュラーガーネット 1.38ct・ダイヤモンド0.13ctリング鑑別書

【Karahuri】Pt900 Grossular Garnet 1.38ct Diamond 0.13ct Ring with Appraisal Report Sale price¥98,000

Australian black opal 3.242ct loose stone Sale price¥59,800

Pt950 アレキサンドライト 0.08ct・ダイヤモンド0.25ctリング鑑別カード

[COLORFUL] Pt950 Alexandrite 0.08ct Diamond 0.25ct Ring with Appraisal Card Sale price¥98,000

Unheated Ruby, 0.207 ct, Loose Stone, Hōki Kyō Sale price¥69,800

Unheated Brazilian Paraiba Tourmaline 0.069ct loose stone (CuO: 2.1%, MnO: 2.1%) Sale price¥65,800

Namibian Jeremejevite 0.501ct loose stone (bicolor) Sale price¥89,800

Namibian Green Tourmaline 7.0mm/1.206ct Loose Stone (Lagoon Tourmaline) Sale price¥59,800

Unheated Brazilian Paraiba Tourmaline 0.081ct loose stone (CuO: 2.1%, MnO: 2.3%) Sale price¥75,800

Chameleon Diamond Green Diamond 0.122ct Loose (FANCY GRAY GREEN, SI2) Sale price¥69,800

Zimbabwean rough green diamond (sawable) 0.228ct rough (trigon) Sale price¥79,800

Mozambique Elbaites Tourmaline / Pink Tourmaline 1.126ct Loose (CuO: 0.2%, MnO: 2.4%) Sale price¥55,800

[12552038] Beryl Cat's Eye 32.703ct Loose Stone Sale price¥98,000

【COLORFLE】Pt900/K18 Diamond 0.22ct Ring with Certificate Sale price¥98,000

Colombian Trapiche Emerald, 1.874ct Loose Stone with Certification Sale price¥69,800

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.