New stock

[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

Brazilian rhodonite 1.423ct loose stone Sale price¥29,800

[Listed on 12562258] Eudialyte from Canada 2.796 ct loose stone Sale price¥39,800

【8/2 22時販売】ジンバブエ産バイカラーユークレース 0.066ctルース Sale price¥12,800

【8/2 22時販売】ジンバブエ産バイカラーユークレース 0.081ctルース Sale price¥14,800

【8/2 22時販売】ジンバブエ産バイカラーユークレース 0.058ctルース Sale price¥8,800

【8/2 22時販売】スイートホーム産ロードクロサイト 0.100ctルース鑑別書 Sale price¥8,800

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

【8/1 22時販売載】【カラフリ】Pt850 ベネチアンチェーンネックレス約45cm スライドチェーン Sale price¥39,800

Pt900 ビルマ産ルビー 1.07ct・ダイヤモンド0.32ctリング GIA

[22602674 Listed] [Karafuri] Pt900 Burma Ruby 1.07ct Ring Sale price¥258,000

[Sale starts 10 PM JST 7/31] Colombian Pyrite and Mica in Emerald Loose Stone, 1.192ct, with Certificate Sale price¥79,800

[Posted as 12563944] Colombian Trapiche Emerald 0.252ct Loose Stone Sale price¥35,800

[Listed as 12563943] Colombian Trapiche Emerald 0.231ct Loose Gemstone Sale price¥33,800

【Posted on 12563871】Cambodian Blue Zircon (Ratanakiri Blue) 1.847ct Loose Stone Sale price¥22,800

[On Sale July 31, 10 PM JST] Afghanistan Green Hauyne 0.062ct Loose Gemstone with Certificate Sale price¥16,800

[On sale 7/30 at 10 PM] Nigerian Mandarin Garnet 0.750 ct Loose Stone with Gemstone Identification Report Sale price¥22,800

[12558272 listed] Brazilian Medusa Quartz (Paraiba Quartz) 0.456ct Loose Sale price¥9,800

[On sale 7/30 at 10 PM] Tanzanian Golden Zircon 0.752ct Loose Stone with Certificate Sale price¥12,800

[Listed as 12563891] Namibian Jeremejevite 0.089ct Loose Sale price¥22,800

[On sale July 29th, 10 PM JST] Brazilian Alexandrite 0.102ct Loose Stone with Certification Sale price¥29,800

[Listed in 12564013] Madagascar Blue Sapphire 0.662ct Loose Sale price¥18,800

[Listed as 12563997] 0.107ct Colombian Emerald Loose Stone Sale price¥12,800

[Posted on 12563995] Australian Black Opal 0.702 ct Loose Stone Sale price¥29,800

[On sale July 29, 10 PM] Sri Lankan White Sapphire 1.025ct Loose Stone with Certification Sale price¥35,800

[On sale July 29th at 10 PM] Afghan Green Hauyne 0.150ct Loose Stone with Certificate Sale price¥55,800

[Lottery Sale 0521_08] Madagascar Sapphire 1.650ct Loose GIA Sale price¥158,000

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

[On sale July 26th at 10 PM] Nepali Kyanite 2.461ct Loose Stone Sale price¥12,800

奈良県天川村産レインボーガーネット（アンドラダイトガーネット） 3.219ctルース

[On sale July 26th at 10 PM] Nara Prefecture, Tenkawa Village Rainbow Garnet (Andradite Garnet) 3.219ct Loose Stone Sale price¥24,800

[On sale from 12:00 PM on Thursday, July 30] Adult Sebonstar 4th Edition "Swan Tiara Pendant" Precious Model Pt950 Sale price¥198,000

[On Sale 12 PM JST on Thursday, July 30] Adult Sebonstar Vol. 4 "Swan Tiara Pendant" Silver Model (Silver Color) SV925 & Rhodium Plating Sale price¥29,800

[Listed as 12562727] Pink Imperial Topaz 1.907ct Loose Stone Sale price¥118,000

[Posted as 12562691] Malawi Bicolor Zircon 2.082ct Loose Sale price¥128,000

Pt900 インペリアルトパーズ 3.88ct・ダイヤモンド0.26ct リング鑑別書

[Sales start July 29, 10 PM JST] [COLORFUL] Pt900 Imperial Topaz 3.88ct / Diamond 0.26ct Ring with Appraisal Report Sale price¥258,000

ピンクダイヤモンド 2.2mm/0.044ctルース(FANCY LIGHT PURPLE PINK, SI1)

[On sale July 26, 10 PM] Pink Diamond 2.2mm/0.044ct Loose (FANCY LIGHT PURPLE PINK, SI1) Sale price¥39,800

ダイヤモンド 3.0mm/0.105ctルース(F, VVS2, VeryGood)

[On sale 10 PM, July 26] Diamond 3.0mm/0.105ct Loose Stone (F, VVS2, VeryGood) Sale price¥19,800

ピンクダイヤモンド 0.073ctルース(FANCY LIGHT PURPLE PINK, SI2)

[On Sale July 31, 10 PM JST] Pink Diamond 0.073ct Loose (FANCY LIGHT PURPLE PINK, SI2) Sale price¥39,800

ダイヤモンド（ハート＆キューピッド）3.0mm/0.226ctルース(G, VVS-1, 3Excellent H&C)

[On sale 10 PM, July 26] Diamond (Hearts & Arrows) 3.0mm/0.226ct Loose (G, VVS-1, 3Excellent H&C) Sale price¥46,800

Pt900/Pt850 ダイヤモンド 4.0mm/0.29ct 一粒ペンダント（ネックレス）

[On Sale 7/26 at 10 PM] [Colorfri] Pt900/Pt850 Diamond 4.0mm/0.29ct Solitaire Pendant (Necklace) Sale price¥35,800

Pt900/K18WG ダイヤモンド0.50ct ・ダイヤモンド0.07ctペンダント（ネックレス）

[On Sale 7/29 10 PM] [COLORFULI] Pt900/K18WG 0.50ct Diamond / 0.07ct Diamond Pendant (Necklace) Sale price¥89,800

[Sales begin 7/31 10 PM JST] [Colorflee] K18WG Diamond 0.30ct Earrings Sale price¥29,800

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

[On sale July 30, 10 PM] [Colorfri] Pt850/K14WG Apple Green Diamond 0.38ct / Diamond 0.50ct Earrings with appraisal report Sale price¥98,000

【Sales start July 29, 10 PM】[Colorfle] Pt900 Ruby 0.69ct, Diamond 0.16ct Ring with appraisal report Sale price¥188,000

[On sale July 28th at 10 PM] Colombia Cosquez Trapiche Emerald 0.184ct Loose, with identification certificate Sale price¥25,800

[On Sale 7/25 at 10 PM JST] Colombia Cosquez Mine Trapiche Emerald 0.177ct Loose Stone with Certificate Sale price¥29,800

[On sale July 28, 10 PM JST] Colombia, Cosquez Trapiche Emerald, 0.157 ct Loose Stone with Certificate Sale price¥22,800

[Sale starts July 25th at 10 PM] Colombian Cosquez Mine Trapiche Emerald 0.144ct Loose Stone with Certification Sale price¥22,800

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.