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sapphire

Sapphire is the birthstone of September. Isn't this a gemstone that can be said to be the representative blue gemstone? However, there are actually many colors, including ``bicolor sapphire'' that exhibits two colors in one stone, ``color change sapphire'' that has a color change effect, and ``star sapphire'' that shows six lines when exposed to light. There are many types such as ``. It belongs to the same mineral corundum as ruby, and has high Mohs hardness and toughness, making it a gemstone that can be enjoyed as everyday jewelry.

Karatz GemMagazine
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Sold out Gemstone Gacha💎 1 of the Three Great Gemstones Gacha + 2 Loose Pink Sapphires (Multiple Purchase Discounts Available)

Gemstone Gacha💎 1 of the Three Great Gemstones Gacha + 2 Loose Pink Sapphires (Multiple Purchase Discounts Available)
Sold out [Available at 10 PM on January 30th] Limited to 6 Silky Pink Sapphires from Vietnam (Sanjay Cut, Round, 3.0-3.3mm) Gacha [Multiple Purchase Discounts Available]

[Available at 10 PM on January 30th] Limited to 6 Silky Pink Sapphires from Vietnam (Sanjay Cut, Round, 3.0-3.3mm) Gacha [Multiple Purchase Discounts Available]

Sold out Limited to 10 stones! Zimbabwean Bicolor Euclase, Bicolor Sapphire, and More! Bicolor Loose Stones! 💎 Single Loose Stones Available. Discounts Available for Multiple Purchases.

Limited to 10 stones! Zimbabwean Bicolor Euclase, Bicolor Sapphire, and More! Bicolor Loose Stones! 💎 Single Loose Stones Available. Discounts Available for Multiple Purchases.
Sold out Color Change Gacha💎 Burmese Color Change Zircon, Color Shift Sapphire, Color Shift Cobalt Spinel, and More (Multiple Purchase Discounts Available)

Color Change Gacha💎 Burmese Color Change Zircon, Color Shift Sapphire, Color Shift Cobalt Spinel, and More (Multiple Purchase Discounts Available)
Sold out Limited to 8 stones: 1 Sri Lankan star sapphire loose stone (5mm, round cabochon cut) Multiple purchase discounts available

Limited to 8 stones: 1 Sri Lankan star sapphire loose stone (5mm, round cabochon cut) Multiple purchase discounts available
Sold out Rose-cut beryllium-treated sapphire, 1 loose stone (4mm, September birthstone) {Multiple purchase discounts available}

Rose-cut beryllium-treated sapphire, 1 loose stone (4mm, September birthstone) {Multiple purchase discounts available}
Sold out Limited to 7 stones: Sri Lankan star sapphire (1 loose stone) Multiple purchase discounts available

Limited to 7 stones: Sri Lankan star sapphire (1 loose stone) Multiple purchase discounts available
Sold out Limited to 14 stones: One loose Mozambique hot pink sapphire (pear-shaped, approximately 4 x 3 mm) [Multiple purchase discounts available]

Limited to 14 stones: One loose Mozambique hot pink sapphire (pear-shaped, approximately 4 x 3 mm) [Multiple purchase discounts available]

Sold out Limited to 4 sets: Sri Lankan sapphire (2.5mm, round cut) and Sri Lankan glass body set of 2 stones. Discounts available for multiple purchases.

Limited to 4 sets: Sri Lankan sapphire (2.5mm, round cut) and Sri Lankan glass body set of 2 stones. Discounts available for multiple purchases.
Sold out [Available at 10 PM on February 28th] Limited to 2 stones: Greenland pink sapphire loose stone (5.0mm, heart shape, certificate included) [Multiple purchase discounts available]

[Available at 10 PM on February 28th] Limited to 2 stones: Greenland pink sapphire loose stone (5.0mm, heart shape, certificate included) [Multiple purchase discounts available]

Sold out Limited Edition of 7 Montana Sapphires (Rock Creek Mine) Gacha (Pear Shape, Approx. 5 x 3mm) [Multiple Purchase Discounts Available]

Limited Edition of 7 Montana Sapphires (Rock Creek Mine) Gacha (Pear Shape, Approx. 5 x 3mm) [Multiple Purchase Discounts Available]
Sold out Black Star Sapphire 1.665ct Loose Necklace

Black Star Sapphire 1.665ct Loose Necklace

Sold out 0.430ct Unheated Sapphire Loose Stone from Kashmir

0.430ct Unheated Sapphire Loose Stone from Kashmir

Sold out 【Sale begins April 11th, 10 PM JST】Untreated Sri Lankan Star Sapphire 0.403ct Loose Stone

【Sale begins April 11th, 10 PM JST】Untreated Sri Lankan Star Sapphire 0.403ct Loose Stone

Sold out スリランカ産ブルーサファイア 0.826ctルース

[Sale starts 4/12 10 PM JST] Sri Lankan Blue Sapphire 5.5mm/0.826ct Loose Stone
Sold out 【12562517掲載】スリランカ産非加熱スターサファイア 0.450ctルース

[Sale on April 14th at 10 PM] Unheated Sri Lankan Star Sapphire 0.450ct Loose Stone
Sold out ベトナム産非加熱シルキーピンクサファイア 0.178ctルース

Vietnam unheated silky pink sapphire 0.178ct loose stone
Sold out 【12561933掲載】ティールグリーンサファイア 2.058ctルース

Teal Green Sapphire 2.058 ct Loose Stone with Appraisal

Sold out モンタナサファイア 0.458ctルース

Montana Sapphire 0.458ct Loose (Bi-Color Sapphire)
Sold out モンタナサファイア 0.416ctルース

Montana Sapphire 0.416ct Loose (Bi-Color Sapphire)
Sold out Montana sapphire 0.359ct loose (blue sapphire)

Montana sapphire 0.359ct loose (blue sapphire)
Sold out ベトナム産非加熱シルキーピンクサファイア 0.175ctルース

Unheated silky pink sapphire from Vietnam 0.175ct loose
Sold out 【12561129掲載】スリランカ産イエローサファイア 0.291ctルース

[On Sale at 10 PM on March 8th] Sri Lankan Yellow Sapphire 0.291ct Loose
Sold out Pink sapphire (with hematite) 0.271ct loose stone

Pink sapphire (with hematite) 0.271ct loose stone

Sold out [Yukinko Cut] Synthetic Sapphire 2.102ct Loose Stone

[Yukinko Cut] Synthetic Sapphire 2.102ct Loose Stone

Sold out Silky sapphire from Vietnam, 1.169ct loose stone

Silky sapphire from Vietnam, 1.169ct loose stone

Sold out 0.745ct loose bicolor sapphire from Windsor, Tanzania

0.745ct loose bicolor sapphire from Windsor, Tanzania

Sold out Pt950 Bicolor Sapphire Pendant Top (Necklace Top)

Pt950 Bicolor Sapphire Pendant Top (Necklace Top)

Sold out [On Sale 2/6 at 10pm] Cornflower Blue Sapphire 0.370ct Loose Stone AIGS

[On Sale 2/6 at 10pm] Cornflower Blue Sapphire 0.370ct Loose Stone AIGS
Sold out [On Sale at 10 PM on January 28th] Sri Lankan Pink Star Sapphire 0.628ct Loose

[On Sale at 10 PM on January 28th] Sri Lankan Pink Star Sapphire 0.628ct Loose
Sold out [On Sale at 10 PM on January 23rd] Unheated Silky Pink Sapphire from Vietnam, 0.218ct Loose

[On Sale at 10 PM on January 23rd] Unheated Silky Pink Sapphire from Vietnam, 0.218ct Loose
Sold out [On Sale at 10 PM on January 23rd] Unheated Silky Pink Sapphire from Vietnam, 0.168ct Loose

[On Sale at 10 PM on January 23rd] Unheated Silky Pink Sapphire from Vietnam, 0.168ct Loose
Sold out 【12546496掲載】ベトナム産非加熱シルキーピンクサファイア 0.161ctルース

Unheated silky pink sapphire from Vietnam 0.161ct loose
Sold out Unheated Madagascar Purple Sapphire 1.170ct Loose GIT

Unheated Madagascar Purple Sapphire 1.170ct Loose GIT

Sold out Unheated Blue Sapphire from Madagascar, 1.380ct Loose, AIGS

Unheated Blue Sapphire from Madagascar, 1.380ct Loose, AIGS

Sold out [On Sale at 10 PM on January 31st] Sri Lankan Blue Sapphire 0.321ct Loose

[On Sale at 10 PM on January 31st] Sri Lankan Blue Sapphire 0.321ct Loose
Sold out [On Sale at 10 PM on January 17th] Sri Lankan Yellow Sapphire 0.526ct Loose

[On Sale at 10 PM on January 17th] Sri Lankan Yellow Sapphire 0.526ct Loose
Sold out [On Sale at 10 PM on January 17th] Cornflower Blue Sapphire 0.680ct Loose Stone AIGS

[On Sale at 10 PM on January 17th] Cornflower Blue Sapphire 0.680ct Loose Stone AIGS
Sold out [1/11 22:00 Sale] Tanzanian Violet Sapphire 0.920ct Loose

[1/11 22:00 Sale] Tanzanian Violet Sapphire 0.920ct Loose
Sold out [1/1 22:00 Sale] Royal Blue Sapphire 1.00ct Loose Stone AIGS

[1/1 22:00 Sale] Royal Blue Sapphire 1.00ct Loose Stone AIGS

Sold out ピンクサファイア 0.881ctルース

Pink sapphire 0.881ct loose

Sold out マダガスカル産バイカラーサファイア 0.259ctルース

Bicolor sapphire from Madagascar 0.259ct loose
Sold out ベトナム産非加熱シルキーピンクサファイア 0.197ctルース

Unheated silky pink sapphire from Vietnam 0.197ct loose
Sold out [12/7 22:00] Sri Lankan Yellow Sapphire 0.508ct Loose

[12/7 22:00] Sri Lankan Yellow Sapphire 0.508ct Loose
Sold out Sri Lankan blue sapphire 0.645ct loose stone

Sri Lankan blue sapphire 0.645ct loose stone
Sold out Madagascar Bicolor Sapphire 5.8mm/1.006ct Loose

Madagascar Bicolor Sapphire 5.8mm/1.006ct Loose
Sold out Madagascar Bicolor Sapphire 4.5mm/0.637ct Loose

Madagascar Bicolor Sapphire 4.5mm/0.637ct Loose

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.