spinel

Spinel is the birthstone for August. Spinel comes in a wide variety of colors, including red, blue, pink, green, purple, black, gray, and colorless. It has a high Mohs hardness of 7.5 to 8, so it can be enjoyed as everyday jewelry. They are often produced in the same octahedral crystal form as diamonds, and their rounded, soft form gives them a different charm than cut gemstones.

Karatz GemMagazine
" Spinel "

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Myanmar spinel and Brazilian amethyst 7 stone set ring (Alterno setting)

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Sri Lankan spinel and Madagascar grandidierite 7 stone set ring (Alterno setting)

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Night purple 13 stone set (hackmanite, tanzanite, black spinel, diamond, etc.) Half eternity ring set (2.0mm)

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Burmese Red Spinel 0.177ct Loose

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Myanmar spinel 0.402ct loose stone

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Tanzanian Blue Spinel 1.028ct Loose Stone

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Tanzanian Cobalt Spinel (Blue Spinel) 0.118ct Loose Stone Japan-Germany

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Cobalt spinel from Tanzania 0.284ct loose Japanese and German

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Pt950 Myanmar spinel 0.18ct 0.22ct earrings

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Myanmar Purple Spinel 0.650ct Loose

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Cobalt spinel from Sri Lanka 0.647ct loose Japanese German edition

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Unheated Burmese pink spinel 1.430ct loose AIGS

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Pink spinel 3.6mm/0.217ct loose

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Spinel 3 stone set 0.328ct loose

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K18ブルースピネル0.31ct・ローズカットダイヤモンド・アクアマリンリング - カラッツSTORE

K18 Blue Spinel 0.31ct/Rose Cut Diamond/Aquamarine Ring

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Burmese bicolor spinel 0.959ct loose

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Unheated Burmese red spinel 1.090ct loose AIGS

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【ダンデライオンカット】カラーレススピネル 9.5mm/3.650ctルース日独オリジナル鑑＆ワッペン

[Dandelion Cut] Colorless Spinel 9.5mm/3.650ct Loose Japanese-German Dictionary & Patch

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[Sakura Incut] Spinel 0.691ct loose

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【さくらインカット】グレースピネル 5.5mmルースワッペン付（プラチナスピネル） - カラッツSTORE

[Sakura Incut] Gray Spinel 5.5mm Loose with Patch (Platinum Spinel)

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Red spinel 0.251ct loose

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Red spinel 0.213ct loose

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[Colorful] K18 synthetic spinel ring

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Bicolor spinel 1.630ct loose (blue/gray)

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K18ブルーサファイア・レッドピンクスピネル2石リング - KARATZ STORE｜カラッツSTORE

K18 blue sapphire/red pink spinel 2 stone ring

coming soon

【11/10 22時販売】タンザニア産グレースピネル（プラチナスピネル） 0.227ctルース Sale price¥12,800

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Burmese bicolor spinel 0.849ct loose

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【ダンデライオンカット】スピネル 5.7mm ルース《コラボ》（パープリッシュグレイ）ワッペン付

[Dandelion Cut] Spinel 5.7mm Loose "Collaboration" (Purplish Gray) with Patch

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Sri Lankan Purple Spinel 0.542ct Loose Stone

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[Sakura In-Cut] Tanzanian Pink Spinel 6.0mm/0.842ct Loose Stone with Certificate of Authenticity

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Myanmar Red Spinel 0.165ct Loose

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Myanmar Red Spinel 3.5mm/0.183ct Loose Stone

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Sri Lankan Star Spinel 1.259ct Loose Stone

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【ダンデライオンカット】ピンクスピネル 5.7mm/0.845ct ルース《コラボ》日独鑑ワッペン付

[Dandelion cut] Myanmar pink spinel 5.7mm/0.845ct loose stone by Nikkei Kane

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Limited to 8 stones: 1 red spinel rough stone from Myanmar. Discounts available for multiple purchases.

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Myanmar Star Spinel 2.626ct Loose

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非加熱コバルトスピネル（コバルトブルースピネル） 0.740ctルース（シールドカット） GIA

Unheated Cobalt Spinel (Cobalt Blue Spinel) 0.740ct Loose (Shield Cut) GIA

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Pt950 Sri Lankan purple spinel 0.29ct diamond ring

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Hot pink spinel, rose quartz, Santa Maria aquamarine, and amethyst 13-stone half eternity ring set (2.0mm)

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Tropical Blossom (Paraiba Tourmaline, Pink Sapphire, Opal, Pink Spinel) 13-Stone Half-Eternity Ring Set (2.0mm)

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【スタッフセレクション】タンザニア産カラーチェンジコバルトスピネル 0.249ctルース（セミオーダーメイドセッ

[Staff Selection] Tanzania Color Change Cobalt Spinel 0.249ct Loose Stone (Semi-Custom Made Set)

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Myanmar orange spinel 0.267ct loose stone

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Myanmar orange spinel 0.295ct loose stone

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Myanmar orange spinel 0.377ct loose stone

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Sri Lankan Cobalt Spinel 0.676ct Loose Stone (Blue Spinel) Nikkei

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Sri Lankan Purple Spinel 1.638ct Loose Stone, Japan-Germany Exchange

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【ダンデライオンカット】グレイパープルスピネル 6mm/1.011ctルース《コラボ》日独鑑ワッペン付

[Dandelion Cut] Gray Purple Spinel 6mm/1.011ct Loose 《Collaboration》 Japanese-German Edition with Patch

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.