Round Cut

【5/6 22時販売】フローレスダイヤモンド（H&C） 4.0mm/0.224ctルース(D, FL, 3Excellent H&C) GIA&中宝 Sale price¥158,000

インターナリーフローレスダイヤモンド（H&C） 4.45mm/0.305ctルース(F, IF, 3Excellent H&C) GIA&中宝

[On sale from 10pm on 5/3] Internally Flawless Diamond (H&C) 4.45mm/0.305ct Loose (F, IF, 3Excellent H&C) GIA & Chuho Sale price¥98,000

[On sale from 22:00 on 5/2] Brazilian Green Spodumene 7.9mm/1.721ct Loose Stone Sale price¥8,800

[On sale from 22:00 on 5/2] Brazilian Spodumene 7.4mm/1.935ct loose stone Sale price¥9,800

Brazilian Spodumene 2.013ct loose stone Sale price¥15,800

[On sale from 10pm on 5/1] Mexican Hyalite Opal 5.2mm/0.439ct Loose Sale price¥12,800

[On sale from 10pm on 5/1] Mexican Hyalite Opal 5.0mm/0.378ct Loose Sale price¥11,000

[On sale at 10pm on 4/26] Sri Lankan green zircon 4.6mm/0.543ct loose stone Sale price¥8,800

[On sale at 10pm on 4/26] Sri Lankan green zircon 4.0mm/0.344ct loose stone Sale price¥6,980

【ダンデライオンカット】マダガスカル産アンデシン・ラブラドライトムーンストーン（通称名ブルームーンストーン） 7.0m/1.147ct《コラボ》ルース鑑別書のネット通販。宝石ルース・天然石・レアストーンを販売。カラッツSTOREは国内最大級の宝石専門情報メディアKARATZ（カラッツ）の宝石専門通販サイトです。宝石鑑定士が運営しています。

[On sale from 10pm on 4/20] [Dandelion Cut] Madagascar Andesine Labradorite Moonstone (also known as Blue Moonstone) 7.0m/1.147ct {Collaboration} Loose Stone with Certificate of Authenticity Sale price¥59,800

[On sale at 10pm on 4/28] Afghanistan Green Tourmaline 4.1mm/0.259ct Loose Sale price¥12,800

[12558007] Brazilian green tourmaline 0.270ct loose stone Sale price¥9,800

[12557983] 1.363ct seafoam tourmaline loose stone from Afghanistan Sale price¥59,800

[On sale from 10pm on 4/23] Afghanistan Seafoam Tourmaline 5.1mm/0.487ct Loose Stone Sale price¥18,800

[On sale from 10pm on 4/29] Pakistani Lazurite (Azurite) 4.1mm/0.318ct loose stone Sale price¥59,800

[On sale 4/23 at 10pm] Russian Demantoid Garnet (Horsetail certified) 2.6mm/0.092ct loose stone Sale price¥16,800

ロシア産デマントイドガーネット（ホーステール認む） 2.8mm/0.105ctルース

Russian demantoid garnet (horsetail recognized) 0.105ct loose Sale price¥14,800

[On sale from 10pm on 4/16] [Dandelion cut] Madagascar sphene 7.0mm/1.412ct [Collaboration] Loose stone Sale price¥59,800

[On sale from 10pm on 4/11] Afghanistan Seafoam Tourmaline 4.0mm/0.264ct Loose Stone Sale price¥12,800

[On sale at 10pm on 4/12] Madagascar Violet Sapphire 4.6mm/0.462ct Loose Sale price¥9,800

[On sale at 10pm on 4/15] Violet sapphire 3.9mm/0.265ct loose stone Sale price¥8,800

[On sale at 22:00 on 4/15] Madagascar Violet Sapphire 4.0mm/0.300ct Loose Sale price¥8,800

[On sale at 22:00 on 4/17] Purple Apatite 5.3mm/0.822ct loose stone with certificate Sale price¥12,800

[On sale at 22:00 on 4/17] Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.783ct loose stone Sale price¥15,800

[On sale at 22:00 on 4/11] Brazilian Paraiba Tourmaline in Quartz 0.712ct loose stone Sale price¥15,800

[On sale at 22:00 on 4/17] Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.728ct loose stone Sale price¥12,800

[On sale at 22:00 on 4/13] Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.735ct loose stone Sale price¥15,800

[On sale from 10pm on 4/17] Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.723ct loose stone Sale price¥15,800

[On sale at 10pm on 4/29] Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.751ct loose stone Sale price¥15,800

[On sale at 22:00 on 4/13] Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.704ct loose stone Sale price¥15,800

[On sale from 10pm on 4/17] Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.656ct loose stone Sale price¥15,800

[On sale 4/13 at 10pm] Brazilian Golden Beryl 7.3mm/1.391ct Loose Sale price¥8,800

[On sale at 22:00 on 4/16] Tanzanite from Tanzania 4.9mm/0.531ct loose stone Sale price¥12,800

[On sale at 22:00 on 4/17] Tanzanite from Tanzania 4.7mm/0.503ct loose stone Sale price¥14,800

Tanzanite from Tanzania 6.5mm/1.026ct loose stone Sale price¥35,800

Russian Demantoid Garnet (Horsetail certified) 3.6mm/0.293ct loose stone Sale price¥49,800

Tanzania Bicolor Zoisite 7.0mm/1.538ct Loose Stone Sale price¥29,800

Tanzania Bicolor Zoisite 6.9mm/1.365ct Loose Stone Sale price¥24,800

Cassiterite 4.0mm/0.566ct loose stone Sale price¥16,800

Cassiterite 3.6mm/0.461ct loose stone Sale price¥12,800

[On sale at 22:00 on 4/18] Cassiterite 3.5mm/0.391ct loose stone with certificate of authenticity Sale price¥15,800

Pakistan Triplite 5.5mm/0.715ct Loose Stone with Certificate of Authenticity Sale price¥39,800

Hana Shinju (South Sea Pearl) 16.380ct loose pearl Hana Shinju guarantee card Sale price¥69,800

[Clover in cut] Cambodian blue zircon (Ratanakiri blue) 6.0mm/1.120ct {Collaboration} Loose Sale price¥39,800

イエローダイヤモンド 0.390ctルース(UNDER S(LIGHT YELLOW), VVS1, 3Excellent H&C)

Yellow Diamond 4.7mm/0.390ct Loose (LIGHT YELLOW, VVS1, 3Excellent H&C) Sale price¥49,800

Blue sapphire 3.9mm/0.280ct loose stone Sale price¥9,800

Vietnam Cobalt Spinel (Color Change) 2.7mm/0.082ct Loose Stone, Japan-Germany Exchange Sale price¥59,800

Brazilian Dumortierite in Quartz 1.256ct loose stone Sale price¥15,800

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.

The fifth reprint has been decided and is now on sale at bookstores nationwide and online.

Written by KARATZ, book “Jewelry Illustrated Book”

The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.

KARATZ・Five Commitments