Width: 3.1 - 4.0mm

[#202607 Akihabara Pop-up Store Takeout in Progress] [12559784 Posted] Hackmanite 0.110ct Loose Stone Sale price¥22,800

カメレオンダイヤモンド 0.255ctルース(FANCY LIGHT GRAYISH GREENISH YELLOW（カメレオン）, SI-2)

[On Sale 8/13 at 10 PM] Chameleon Diamond 0.255ct Loose (FANCY LIGHT GRAYISH GREENISH YELLOW (Chameleon), SI-2) Sale price¥79,800

イエローダイヤモンド 0.144ctルース(FANCY VIVID YELLOW, SI-2)

[Sale on August 13th at 10 PM] Yellow Diamond 3.2mm/0.144ct Loose (FANCY VIVID YELLOW, SI-2) Sale price¥55,800

[On sale August 9, 10 PM] Nigerian Indicolite Tourmaline 0.241ct Loose Stone with Certification Sale price¥25,800

[On sale August 13 at 10 PM] 0.356ct Zimbabwe Sphene Loose Stone with Certificate Sale price¥12,800

[On sale August 9 at 10 PM JST] German Hauyne 3.5mm/0.134ct Loose Stone with Certificate Sale price¥29,800

[On Sale August 16, 10 PM] Burmese Red Spinel 0.236ct Loose Stone with Certificate Sale price¥45,800

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

Opal 0.123ct loose stone Sale price¥5,980

[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

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

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

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

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） 0.240ctルース

Nara Prefecture, Tenkawa Village Rainbow Garnet (Andradite Garnet) 3.5mm/0.240ct Loose Sale price¥8,800

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） 0.336ctルース

Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture, 3.8mm/0.336ct Loose Stone Sale price¥9,800

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） 3.9mm/0.378ctルース（ローズカット）

Andradite Garnet (Rainbow Garnet) from Tenkawa Village, Nara Prefecture, 3.9mm/0.378ct loose stone (rose cut) Sale price¥9,800

0.319 ct Tanzanian bicolor grossular garnet loose stone Sale price¥19,800

Madagascar Padparadscha Sapphire 3.4mm/0.208ct Loose Gem with Central Gem Laboratory Appraisal Sale price¥45,800

Madagascar Paparadscha Sapphire 3.5mm/0.234ct Loose Stone, Central Gem Lab certified Sale price¥49,800

[Posted on 12563480] Madagascar Teal Green Sapphire 0.470ct Loose Stone Sale price¥29,800

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） 0.650ctルース

Rainbow Garnet (Andradite Garnet) 0.650ct Loose Stone from Tenkawa Village, Nara Prefecture Sale price¥16,800

Australian rainbow lattice sunstone, 0.352 ct, loose Sale price¥8,800

[On sale August 2 at 10 PM JST] Tanzanian Ayana spinel (hot pink spinel) 0.182 ct loose stone with gemological report Sale price¥25,800

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

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

0.229 ct Loose Red Spinel from Myanmar with Certificate Sale price¥45,800

0.191ct Colombian emerald loose stone, Hōki-kyō Sale price¥45,800

[Listing No. 12563397] Brazilian Alexandrite 0.217 ct Loose Stone Sale price¥39,800

[Listed 12563403] Petzottaite from Madagascar 0.200ct Loose Sale price¥29,800

[Posted on 12563395] Tanzanian Pink Spinel 0.148ct Loose Gemstone Sale price¥22,800

Diamond 3.0mm/0.100ct Loose (E, VVS-2, VeryGood) Sale price¥22,800

Diamond 3.8mm/ 0.198ct Loose (D, VVS-2, VeryGood) Sale price¥29,800

Diamond 0.229ct Loose (D, VS2, Flanders Cut) Sale price¥39,800

Bicolor Grossular Garnet from Tanzania 0.839ct Loose Sale price¥19,800

Bicolor Grossular Garnet from Tanzania 0.779ct Loose Stone Sale price¥19,800

Bicolor Grossular Garnet from Tanzania 0.602ct Loose Stone Sale price¥16,800

Tanzanian Bicolor Grossular Garnet 0.544ct Loose Gemstone Sale price¥14,800

Bicolor Grossular Garnet from Tanzania 0.855ct Loose Stone Sale price¥18,800

Tanzanian Bicolor Grossular Garnet 0.586ct Loose Stone Sale price¥14,800

Jeremejevite 0.218ct Loose Stone, Namibian, with Certificate of Authenticity Sale price¥49,800

0.416ct Loose Mozambique Ruby with Gemstone Identification Report Sale price¥29,800

0.393ct Loose Tanzanian Windsor Sapphire (Purple Sapphire) with Gemstone Identification Report Sale price¥18,800

0.333ct Loose Mahenge (Pink) Spinel from Tanzania with Certificate Sale price¥29,800

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.