Ta line

[Option] Laser engraving of characters and symbols Sale price¥5,000

イエローダイヤモンド 0.188ctルース(FANCY INTENSE YELLOW, VS1)

Yellow diamond 0.188ct loose (FANCY INTENSE YELLOW, VS1) Sale price¥47,800

Gem Gacha💎1 cushion cut tourmaline stone💎 4mm《Multiple purchase discount available》 Sale price¥2,980

Limited to 9 stones: Tanzanite loose stone from Tanzania (5x7mm, oval cut) Multiple purchase discounts available Sale price¥12,800

Limited to 6 stones: 1 loose Madagascar needle-in topaz (average 2.1 carats) Multiple purchase discounts available Sale price¥4,980

Limited to 8 stones: Swiss blue topaz (4mm, rose cut) 1 loose stone. Discounts available for multiple purchases. Sale price¥3,980

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

[On Sale August 6, 10 PM] [Colori] K18 Blue Sapphire 1.13ct / Diamond 0.75ct Ring with Appraisal Report Sale price¥188,000

[On sale at 10 PM on August 6] [Karafuri] Pt850 Ruby 0.85ct, Diamond 0.09ct Ring with Appraisal Certificate Sale price¥79,800

[On sale August 1, 10 PM] Colombian Cosquez Trapiche Emerald 0.252ct Loose Stone with Certificate Sale price¥35,800

[On sale August 1, 10 PM JST] Colombian Cosquez Trapiche Emerald, 0.231 ct, Loose Stone with Certificate Sale price¥33,800

[On sale August 14th at 10 PM] Colombian Cosquez Trapiche Emerald, 0.199ct Loose Stone with Appraisal Sale price¥29,800

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

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

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

【Karahuri】Pt900 Imperial Topaz 3.88ct / Diamond 0.26ct Ring with Certificate 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)

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)

Diamond 3.0mm/0.105ct Loose (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)

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)

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）

[COLORFUL] Pt900/Pt850 Diamond 4.0mm/0.29ct Solitaire Pendant (Necklace) Sale price¥35,800

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

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

[Karafuru] Pt900 Ruby 0.69ct, Diamond 0.16ct Ring with Appraisal Report Sale price¥188,000

0.184ct Trapiche Emerald Loose from Cosquez, Colombia, with Appraisal Report Sale price¥25,800

Colombia Cosquez Mine Trapiche Emerald 0.177ct Loose Gemstone with Certification Sale price¥29,800

Colombian Trapiche Emerald (from Cosquez) 0.157ct Loose Stone with Certificate Sale price¥22,800

Columbia Cosquez Mine Trapiche Emerald 0.144ct Loose with Identification Report Sale price¥22,800

Colombia Cosquez Mine Trapiche Emerald 0.138ct Loose with Certificate Sale price¥19,800

[Listed as 12563731] Brazilian Indicolite Tourmaline 0.404 ct Loose Stone Sale price¥39,800

[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

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

K18 グロッシュラーガーネット 0.26ctct ペンダントトップ（ネックレストップ）

[22602626 listed] [Kalafr] K18 Grossular Garnet 0.26ct Charm Sale price¥39,800

Pt900 ブラックダイヤモンド 1.00ct・ダイヤモンド0.50ctリング鑑別書

[Lottery Sale 12][For Winners Only][Posted on 22602618] Pt900 Black Diamond 1.00ct / Diamond 0.50ct Ring Sale price¥158,000

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

Brazilian Dendritic Quartz 4.571ct Loose Sale price¥12,800

Brazilian Dendritic Quartz 5.085ct Loose Stone Sale price¥12,800

Pt950/K18 パライバトルマリン 0.11ct（CuO:2.7%,MnO:3.4%）・ダイヤモンド1.12ctリング　宝貴協

[On sale August 2 at 10 PM] [ColorFuli] Pt950/K18 Paraiba Tourmaline 0.11ct (CuO:2.7%, MnO:3.4%) and Diamond 1.12ct Ring - Houki-kyo Sale price¥188,000

【KARAFURU】K18 Diamond 0.15ct Pendant Top (Necklace Top) Sale price¥29,800

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

1.361ct loose Amphibole in Danburite from Brazil Sale price¥14,800

2.251ct Loose Brazilian Amphibole in Danburite with Japan-Germany Gemological Report Sale price¥29,800

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, SI1) Sale price¥79,800

ブラウンダイヤモンド 0.728ctルース(FANCY DARK BROWN, SI2)

Brown Diamond 0.728ct Loose (FANCY DARK BROWN, SI2) Sale price¥49,800

Brown Diamond 0.778 ct Loose (FANCY BROWN, SI1) Sale price¥59,800

ブラウンダイヤモンド 5.0mm/0.556ctルース(FANCY LIGHT BROWN, VS-1)

Loose Brown Diamond 5.0mm/0.556ct (FANCY LIGHT BROWN, VS-1) Sale price¥39,800

ダイヤモンド 3.7mm/0.185ctルース(D, VVS-2, 3Excellent H&C)

Diamond 3.7mm/0.185ct Loose (D, VVS-2, 3Excellent H&C) Sale price¥39,800

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.