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blue sapphire

Blue sapphire can be said to be the representative of blue gemstones.
Sapphires come in a wide variety of colors and come in many shades, but when they are simply referred to as "sapphires", they refer to blue sapphires.
It is a jewel that has been loved by the British royal family, including the engagement ring of the late Princess Diana.
The most valuable colors are cornflower blue and royal blue.
Sapphire is the birthstone for September.

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非加熱ブルーサファイア 0.862ctルース

[12549429] Blue sapphire 0.862ct loose stone Sale price¥25,800
ブルーサファイア 0.591ctルース

[Sold at 10pm on September 15th] Blue sapphire 0.591ct loose stone Sale price¥9,800
ブルーサファイア 0.314ctルース

[Sold at 10 PM on September 19th] Blue Sapphire 4.0mm/0.314ct Loose Sale price¥112,800
《再入荷》【宝石商の道具】ゲルタックケース3個セット《透明・黒背景の2種類有》（ブルーサファイア3石付） - カラッツSTORE

[Jeweler's Tools] Set of 3 gel tack cases (2 types: transparent and black background) (includes 3 blue sapphires) (discount available for multiple purchases) Sale price¥3,980
On sale from 10 PM on Saturday, August 16th! "PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device-Inspired Ring - Enforcer Design [Yayoi Rokuitsuka Model] "Ice Blue Sapphire"

On sale from 10 PM on Saturday, August 16th! "PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device-Inspired Ring - Enforcer Design [Yayoi Rokuitsuka Model] "Ice Blue Sapphire" Sale priceFrom ¥25,800
Limited to 19 stones: Blue sapphire from Madagascar (medium blue, oval cut) Discounts available for multiple purchases

Limited to 19 stones: Blue sapphire from Madagascar (medium blue, oval cut) Discounts available for multiple purchases Sale price¥2,980
ブルーサファイア 0.417ctルース

[On sale at 10pm on September 17th] 0.417ct loose blue sapphire from Madagascar Sale price¥9,800
マダガスカル産ブルーサファイア 0.374ctルース

[On sale at 10 PM on September 1st] 0.374ct loose blue sapphire from Madagascar Sale price¥9,800
マダガスカル産ブルーサファイア 4.7mm/0.522ctルース

[On Sale at 10 PM on September 3rd] Madagascar Blue Sapphire 4.7mm/0.522ct Loose Sale price¥8,800
ブルーサファイア 0.266ctルース

[On Sale at 10 PM on September 6th] 0.266ct Loose Blue Sapphire from Madagascar Sale price¥8,800
ブルーサファイア 0.170ctルース

[On Sale at 10 PM on September 6th] 0.170ct Loose Blue Sapphire from Madagascar Sale price¥8,800
ブルーサファイア 0.162ctルース

[On Sale at 10 PM on September 6th] 0.162ct Loose Blue Sapphire from Madagascar Sale price¥9,800
ブルーサファイア 1.483ctルース 鑑別書

1.483ct blue sapphire loose stone Sale price¥98,000
コーンフラワーブルーサファイア 0.530ctルース AIGS

[Available at 10 PM on August 24th] Cornflower Blue Sapphire 0.530ct Loose Stone AIGS Sale price¥128,000
K18 bicolor sapphire 0.129ct/blue sapphire ring

K18 bicolor sapphire 0.129ct/blue sapphire ring Sale price¥69,800
Unheated blue sapphire from Madagascar 1.310ct loose GIA

Unheated blue sapphire from Madagascar 1.310ct loose GIA Sale price¥89,800
ブルーサファイア（アイスブルー） 0.271ctルース

Sri Lankan Blue Sapphire (Ice Blue) 0.271ct Loose (Princess Cut) Sale price¥12,800
ブルーサファイア 0.466ctルース

Blue sapphire 0.466ct loose stone Sale price¥12,800
ブルーサファイア 0.282ctルース

Blue sapphire 0.282ct loose stone (teal color) Sale price¥15,800
マダガスカル産ブルーサファイア 0.890ctルース

Madagascar Blue Sapphire 0.890ct Loose Sale price¥39,800
ブルーサファイア 0.371ctルース

Sri Lankan Blue Sapphire 4.3mm/0.371ct Loose Stone Sale price¥12,800
マダガスカル産ブルーサファイア（アイスブルー） 0.694ctルース

Madagascar Blue Sapphire (Ice Blue) 0.694ct Loose Sale price¥18,800
マダガスカル産ブルーサファイア（アイスブルー） 0.263ctルース

Madagascar Blue Sapphire (Ice Blue) 0.263ct Loose Sale price¥12,800
マダガスカル産ブルーサファイア（アイスブルー） 0.584ctルース

Madagascar Blue Sapphire (Ice Blue) 0.584ct Loose Sale price¥19,800
ブルーサファイア 0.251ctルース

Sri Lankan Blue Sapphire 0.251ct Loose Sale price¥12,800
Pt950 パープルサファイア 0.318ct ピアス

Pt950 Sri Lankan purple sapphire 0.318ct and blue sapphire earrings Sale price¥39,800
タイ産ブルーサファイア 0.388ctルース

Thai Blue Sapphire 0.388ct Loose Sale price¥9,800
タイ産ブルーサファイア 0.740ctルース

Thai Blue Sapphire 0.740ct Loose Sale price¥15,800
スリランカ産ブルーサファイア 0.414ctルース

Sri Lankan Blue Sapphire 4.0mm/0.414ct Loose Stone Sale price¥15,800
スリランカ産非加熱サファイア 0.344ctルース

Sri Lankan Blue Sapphire 0.344ct Loose Sale price¥12,800
[On sale from 10pm on 12/29] Sri Lankan blue sapphire and 10 Vietnamese silky pink sapphires in a half eternity ring set (approx. 2.6mm)

[On sale from 10pm on 12/29] Sri Lankan blue sapphire and 10 Vietnamese silky pink sapphires in a half eternity ring set (approx. 2.6mm) Sale price¥98,000
ブルーサファイア 3.9mm/0.279ctルース

Blue sapphire 3.9mm/0.279ct loose stone Sale price¥9,800
Blue sapphire 0.217ct loose stone

Blue sapphire 0.217ct loose stone Sale price¥15,800
ブルーサファイア 0.226ctルース

Sri Lankan Blue Sapphire 0.226ct Loose Sale price¥14,800
ブルーサファイア 0.279ctルース

Sri Lankan Blue Sapphire 3.8mm/0.279ct Loose Sale price¥8,800
ブルーサファイア 0.401ctルース

Sri Lankan Blue Sapphire 4.5mm/0.401ct Loose Sale price¥12,800
ブルーサファイア 0.231ctルース

Blue sapphire 0.231ct loose Sale price¥9,800
ブルーサファイア 0.287ctルース

Blue sapphire 0.287ct loose Sale price¥12,800
Madagascar Blue Sapphire 0.302ct Loose

Madagascar Blue Sapphire 0.302ct Loose Sale price¥16,800
Sri Lankan Blue Sapphire 0.519ct Loose

Sri Lankan Blue Sapphire 0.519ct Loose Sale price¥15,800
Sri Lankan Blue Sapphire (Ice Blue) 0.584ct Loose

Sri Lankan Blue Sapphire (Ice Blue) 0.584ct Loose Sale price¥9,800
ロイヤルブルーサファイア 0.730ctルース

Royal Blue Sapphire 0.730ct Loose AIGS Sale price¥158,000
マダガスカル産アイスブルーサファイア 0.181ctルース

Ice blue sapphire from Madagascar 0.181ct loose Sale price¥7,980
Sold out [On sale September 14th at 10 PM] {Only one left} Blue Sapphire Gacha includes two unheated royal blue sapphires (with AIGS certificate) (plus one Teppanawa Mine sapphire) {Multiple purchase discounts available}

[On sale September 14th at 10 PM] {Only one left} Blue Sapphire Gacha includes two unheated royal blue sapphires (with AIGS certificate) (plus one Teppanawa Mine sapphire) {Multiple purchase discounts available}
Sold out 【12539647掲載】非加熱ブルーサファイア 1.685ctルース

[Published in 12539647] Unheated blue sapphire 1.685ct loose

Sold out ブルーサファイア 0.244ctルース

[On Sale at 10 PM on September 17th] 0.244ct Loose Blue Sapphire from Madagascar

Sold out ブルーサファイア 0.843ctルース

[On Sale at 10 PM on September 12th] 0.843ct Loose Blue Sapphire from Madagascar
Sold out ブルーサファイア 1.141ctルース

[On sale at 10pm on September 17th] 1.141ct loose blue sapphire from Madagascar

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.