diamond

Diamond is the birthstone of April. This gemstone is sometimes called the king of gemstones. It is said to be the hardest gemstone on earth, and its strong shine is exceptionally beautiful. Colorless is the most common, but it comes in a variety of shades including yellow, pink, blue, orange, and green.

Karatz GemMagazine
" diamond "

【12/7 22時販売】《限定40石》ソルトアンドペッパーダイヤモンド（2mm,メレダイヤモンド）1石ルース《複数購入割引有》 Sale price¥2,980

【12/14 22時販売】ダイヤモンド 4.1mm/0.263ルース(I, VVS2, 3Excellent H&C) Sale price¥55,800

【12/14 22時販売】ダイヤモンド 3.8mm/0.200ルース(E, VVS1, VeryGood) Sale price¥39,800

【12/14 22時販売】ダイヤモンド 3.8mm/0.220ルース(H, VS1, 3Excellent H&C) Sale price¥45,800

【12/14 22時販売】ダイヤモンド 3.8mm/0.209ルース(G, VVS1, 3Excellent H&C) Sale price¥59,800

【12/14 22時販売】ダイヤモンド 0.085ルース(E, SI1) Sale price¥15,800

【12/14 22時販売】ファンシーイエローダイヤモンド 0.227ルース(FANCY YELLOW, I-2) Sale price¥59,800

【12/14 22時販売】ファンシーディープイエローダイヤモンド 3.6mm/0.190ルース(FANCY DEEP ORANGY YELLOW, SI2) Sale price¥39,800

【12/7 22時販売】ソルトアンドペッパーダイヤモンド＆ブラックダイヤモンド１３石ハーフエタニティリングセット（2.0mm) Sale price¥89,800

【12/7 22時販売】ラボグロウンダイヤモンド（合成グリーンダイヤモンド）１３石ハーフエタニティリングセット（2.0mm) Sale price¥89,800

【12/8 22時販売】ダイヤモンド（カボションカット） 0.233ctルース Sale price¥39,800

【12/8 22時販売】ダイヤモンド（シュガーローフカット） 0.233ctルース Sale price¥39,800

【12/8 22時販売】ダイヤモンド（カボションカット） 4.0mm/0.293ctルース Sale price¥55,800

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

[Resale] [Jeweler's Tools] H&C (Heart & Cupid) Scope (Diamond Scope) Sale price¥1,580

Ice blue diamond 1.2mm or 2.0mm 1 stone (VS class equivalent, round cut) {Multiple purchase discount available} Sale priceFrom ¥4,980

Diamond 2mm (VS class, DG color, round cut, melee diamond 2.0mm) 1 loose stone {Multiple purchase discounts available} Sale price¥5,580

H&C (Hearts & Cupids) Diamond 2.0mm Loose (VS Class, DG Class, 2mm Melee Diamonds) {Multiple Purchase Discounts Available} Sale price¥7,980

Lab-grown diamond (synthetic diamond)《HPHT method》1 stone loose《Multiple purchase discount available》 Sale priceFrom ¥2,980

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

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 1.2mm Loose (VS Class, DG Class, Melee Diamonds) {Multiple Purchase Discounts Available} Sale price¥3,980

Diamond 1.2mm (VS class, DG color, round cut, melee diamond) 1 loose stone {Multiple purchase discounts available} Sale price¥1,980

1 blue fluorescent diamond (VS-SI class equivalent, 2.0mm)《Multiple purchase discount available》 Sale price¥8,980

Green Diamond (Treatment) 1 stone (approx. 1.3mm)《Multiple purchase discount available》 Sale price¥3,580

Lab-grown ice blue diamond set of two (synthetic diamond, VS class equivalent, 1mm) {Multiple purchase discount available} Sale price¥1,580

Gem Gacha "April Birthstone" 💎 Fluorescent Yellow Diamond (Tapered Cut or Baguette Cut) 1 Stone {Multiple Purchase Discounts Available} Sale price¥3,980

Princess cut diamond 2.0mm loose (equivalent to VS class)《Multiple purchase discount available》 Sale price¥8,800

Diamond (Old Mine Cut) 1 Loose Stone {Multiple Purchase Discounts Available} Sale price¥4,980

[202411CP Use] {Limited to 18 stones} 1 canary yellow diamond loose (VS-SI) {Multiple purchase discounts available} Sale price¥5,980

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 Sale price¥3,000

Limited to 6 stones: 1 loose black diamond (rose cut, 5mm) Multiple purchase discounts available Sale price¥6,980

イエローダイヤモンド 0.201ctルース（ローズカット） - KARATZ STORE｜カラッツSTORE

Yellow diamond 0.201ct loose (rose cut) Sale price¥14,800

カナリーイエローダイヤモンド（トリートメント） 0.218ctルース(FANCY INTENSE YELLOW*, SI-2) Sale price¥24,800

カナリーイエローダイヤモンド（トリートメント） 0.260ctルース(FANCY INTENSE GREENISH YELLOW*, SI-2) Sale price¥29,800

ダイヤモンド 0.133ctルース(J, SI2) Sale price¥29,800

[On sale at 10pm on 10/26] Silky Diamond 3.5mm/0.178ct Loose Sale price¥19,800

[On sale 11/1 at 22:00] Diamond (cabochon cut) 0.183ct loose Sale price¥24,800

[On sale 11/1 at 22:00] Diamond (cabochon cut) 0.366ct loose Sale price¥59,800

[On sale 11/1 22:00] Yellow Diamond (Sugarloaf Cut) 0.348ct Loose Sale price¥39,800

[On sale 11/1 at 22:00] Diamond (cabochon cut) 0.173ct loose Sale price¥19,800

Russian diamond rough (sawable) 0.509ct rough (trigon) Sale price¥168,000

《Yurakucho Marui 2024112 Takeout》【Lottery Sale ⑨】Lottery Sale 1107【32501746】Lab-grown Diamond (Synthetic Diamond) 0.380ct Loose (FANCY VIVID YELLOWISH GREEN, VS2) Sale price¥49,800

《Yurakucho Marui 2024112 takeout》【10/2 22:00 sale】Diamond 0.171ct loose (E, VS2) Sale price¥35,800

[On sale from 10/4 at 10pm] Pt950 pink diamond 0.047ct diamond ring (FANCY LIGHT PURPLE PINK/SI-1/NONE) Sale price¥98,000

カメレオンダイヤモンド 0.057ctルース(FANCY LIGHT GRAY GREEN, SI2)

Chameleon Diamond 0.057ct Loose (FANCY LIGHT GRAY GREEN, SI2) Sale price¥29,800

カメレオンダイヤモンド 0.110ctルース(FANCY BROWNISH GREENISH YELLOW, SI2)

Chameleon Diamond 3mm/0.110ct Loose (FANCY BROWNISH GREENISH YELLOW, SI2) Sale price¥29,800

《Yurakucho Marui 2024112 takeout》K18YG rose cut diamond 0.171ct ring Sale price¥89,800

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