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colorless diamond

Colorless diamonds are a classic engagement ring.
It shines strongly in the light and has an exceptional beauty.
Diamonds are usually said to have a pale yellow or brown tinge, but the closer they are to colorless, the more valuable they are.
Evaluations are mainly based on global value standards called the 4Cs.
Diamond is the birthstone for April.

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H&C（ハート&キューピッド）専用スコープ（ダイヤモンド 専用スコープ) - カラッツSTORE

[Jeweler's Tools] H&C (Heart & Cupid) Special Scope (Diamond Special Scope) Sale price¥1,580
H&C (Heart & Cupid) Diamond 2.0mm Loose (VS Class, DG Class, 2mm Melee Diamonds) {Multiple Purchase Discounts Available}

H&C (Heart & Cupid) Diamond 2.0mm Loose (VS Class, DG Class, 2mm Melee Diamonds) {Multiple Purchase Discounts Available} Sale price¥7,980
Rose cut diamond 1.2mm x 1 stone (VS-SI class, DH color, melee diamonds) {Multiple purchase discounts available}

Rose cut diamond 1.2mm x 1 stone (VS-SI class, DH color, melee diamonds) {Multiple purchase discounts available} Sale price¥2,980
Diamond 1.2mm (VS class, DG color, round cut, melee diamond) 1 loose stone {Multiple purchase discounts available}

Diamond 1.2mm (VS class, DG color, round cut, melee diamond) 1 loose stone {Multiple purchase discounts available} Sale price¥1,980
H&C (Hearts & Cupids) Diamond 1.2mm Loose (VS Class, DG Class, Melee Diamonds) {Multiple Purchase Discounts Available}

H&C (Hearts & Cupids) Diamond 1.2mm Loose (VS Class, DG Class, Melee Diamonds) {Multiple Purchase Discounts Available} Sale price¥3,980
Sold out プリンセスカットダイヤモンド 2.0mm ルース（VSクラス相当）

Princess cut diamond 2.0mm loose (equivalent to VS class)《Multiple purchase discount available》

Diamond (Old Mine Cut) 1 Loose Stone {Multiple Purchase Discounts Available}

Diamond (Old Mine Cut) 1 Loose Stone {Multiple Purchase Discounts Available} Sale price¥4,980
H&C(ハート&キューピッド)ダイヤモンド1.2mmルース - カラッツSTORE

H&C (Hearts & Cupids) Diamond 1.5mm Loose (VS Class, DG Class, Melee Diamonds) {Multiple Purchase Discounts Available} Sale price¥4,980
Diamond loose sorting transition fee

Diamond loose sorting transition fee Sale price¥3,000
フローレスダイヤモンド（H&C） 0.266ctルース(D, FL, 3Excellent H&C)

[On Sale at 10 PM on September 6th] Flawless Diamond (H&C) 4.0mm/0.266ct Loose (D, FL, 3 Excellent H&C) GIA & Chuhokan Sale price¥188,000
ダイヤモンド 0.618ctルース(I, I1,ツリーカット)

Diamond 0.618ct loose (I, I1, tree cut) Sale price¥128,000
ダイヤモンド 0.054ctルース（VSクラス相当,エメラルドカット）

Diamond 0.054ct loose (VS class equivalent, emerald cut) Sale price¥8,800
スライストラピッチェダイヤモンド 0.228ctルース

[On sale at 10pm on August 19th] Sliced ​​Trapiche Diamond 0.228ct Loose Sale price¥18,800
ダイヤモンド（カボションカット） 0.196ctルース

Diamond (cabochon cut) 0.196ct loose Sale price¥29,800
ダイヤモンド 0.245ctルース(E, VS-1)

Diamond 0.245ct loose stone (E, VS-1, octagon brilliant cut) Sale price¥39,800
ダイヤモンド（カボションカット） 0.401ctルース

Diamond (cabochon cut) 0.401ct loose (star depending on angle) Sale price¥49,800
ブラウンダイヤモンド 0.389ctルース

Round Diamond 0.389ct Loose (Cabochon Cut) Sale price¥39,800
Diamond 0.169ct loose (F, VS2)

Diamond 0.169ct loose (F, VS2) Sale price¥18,800
ダイヤモンド（カボションカット） 0.247ctルース（VS-SIクラス相当）

Diamond (cabochon cut) 0.247ct loose (VS-SI class equivalent) Sale price¥39,800
ダイヤモンド 4.1mm/0.263ルース(I, VVS2, 3Excellent H&C)

Diamond 4.1mm/0.263 Loose (I, VVS2, 3Excellent H&C) Sale price¥55,800
ダイヤモンド 3.8mm/0.200ルース(E, VVS1, VeryGood)

Diamond 3.8mm/0.200 loose (E, VVS1, VeryGood) Sale price¥39,800
ダイヤモンド 3.8mm/0.220ルース(H, VS1, 3Excellent H&C)

Diamond 3.8mm/0.220 Loose (H, VS1, 3Excellent H&C) Sale price¥45,800
ダイヤモンド 3.8mm/0.209ルース(G, VVS1, 3Excellent H&C)

Diamond 3.8mm/0.209 Loose (G, VVS1, 3Excellent H&C) Sale price¥59,800
ダイヤモンド（カボションカット） 0.233ctルース

Diamond (cabochon cut) 0.233ct loose Sale price¥39,800
Diamond 3.0mm/0.123ct loose stone (D, VS2, octagonal cut)

Diamond 3.0mm/0.123ct loose stone (D, VS2, octagonal cut) Sale price¥28,800
ダイヤモンド（カボションカット） 0.183ctルース

Diamond (cabochon cut) 0.183ct loose Sale price¥24,800
ダイヤモンド（カボションカット） 0.366ctルース

Diamond (cabochon cut) 0.366ct loose Sale price¥59,800
ダイヤモンド 0.171ctルース(E, VS2)

Diamond 0.171ct loose stone (E, VS2, radiant cut) Sale price¥35,800
ダイヤモンド 0.128ctルース（カボションカット,マロンカット）

Diamond 0.128ct loose stone (cabochon cut, maroon cut) Sale price¥39,800
ダイヤモンド 2.7mm/0.074ctルース(E, SI2,特殊カット)

Diamond 2.7mm/0.074ct loose (E, SI2, special cut) Sale price¥18,800
ダイヤモンド（カボションカット） 0.206ctルース

Diamond (cabochon cut) 0.206ct loose Sale price¥55,800
ダイヤモンド 0.042ctルース

Diamond 0.042ct loose (VS class equivalent, emerald cut) Sale price¥8,800
ダイヤモンド 0.144ctルース(I, VS1, Good)

Diamond 3.4mm/0.144ct loose stone (I, VS1, Good) Sale price¥16,800
Diamond 0.320ct loose (D, VS2)

Diamond 0.320ct loose (D, VS2) Sale price¥79,800
ダイヤモンド 0.096ctルース(D, SI1)

Diamond 0.096ct loose (D, SI1, octagonal cut) Sale price¥19,800
ダイヤモンド 0.126ctルース(F, VS2)

Diamond 0.126ct loose (F, VS2, octagonal cut) Sale price¥25,800
ダイヤモンド 0.051ctルース

Diamond 0.051ct loose (trapeze cut, VS class equivalent) Sale price¥9,800
Diamond 0.777ct loose (butterfly cut)

Diamond 0.777ct loose (butterfly cut) Sale price¥77,777
ダイヤモンド 0.052ctルース（トラペーズカット,VSクラス相当）

Diamond 0.052ct loose (trapeze cut, VS class equivalent) Sale price¥8,800
ダイヤモンド 0.061ctルース（トラペーズカット,VSクラス相当）

Diamond 0.061ct loose (trapeze cut, VS class equivalent) Sale price¥9,800
ダイヤモンド 0.042ctルース（トラペーズカット,VSクラス相当）

Diamond 0.042ct loose (trapeze cut, VS class equivalent) Sale price¥8,800
ダイヤモンド 0.039ctルース（トラペーズカット,VSクラス相当）

Diamond 0.039ct loose (trapeze cut, equivalent to VS class) Sale price¥7,980
ダイヤモンド 0.348ctルース(I, SI1)

Diamond 0.348ct loose (I, SI1) Sale price¥59,800
Sold out Diamond 2mm (VS class, DG color, round cut, melee diamond 2.0mm) 1 loose stone {Multiple purchase discounts available}

Diamond 2mm (VS class, DG color, round cut, melee diamond 2.0mm) 1 loose stone {Multiple purchase discounts available}
Sold out 「決定版 アンカットダイヤモンド」サイン入り初版本 ＆ダイヤモンド原石（グリーン蛍光）2点セット

"Definitive Uncut Diamond" by Kyoichi Suwa, signed first edition & 2-piece set of diamonds (hexagonal cut)

Sold out 1 rose cut diamond (VS-SI class equivalent, 3.0mm)《Multiple purchase discount available》

1 rose cut diamond (VS-SI class equivalent, 3.0mm)《Multiple purchase discount available》

Sold out Lottery Sale ⑤ [Reserved for Winners] [Published on 32501841] White Diamond 6.2mm/0.988ct Loose (Fancy White, I2)

Lottery Sale ⑤ [Reserved for Winners] [Published on 32501841] White Diamond 6.2mm/0.988ct Loose (Fancy White, I2)

Sold out インターナリーダイヤモンド 0.25ルース(E, IF, 3Excellent) GIA

[On Sale at 10 PM on October 11th] Internal Diamond 4.1mm/0.250ct Loose (F, IF, 3 Excellent) GIA

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.