Sale

Mexican Cantera Opal 5.647ct Loose Sale price¥19,800

Mexican Cantera Opal 2.809ct Loose Sale price¥25,800

Mexican Cantera Opal 4.973ct Loose Sale price¥15,800

Mexican Cantera Opal 7.460ct Loose Sale price¥29,800

Brazilian Petalite 0.713ct loose stone Sale price¥5,980

Brazilian Petalite 1.654ct loose stone Sale price¥9,800

Mexican Cantera Opal 2.982ct Loose Sale price¥14,800

Mexican Cantera Opal 1.534ct Loose Sale price¥8,800

Mexican Cantera Opal 11.105ct Loose Sale price¥12,800

Bicolor tourmaline 0.840ct loose Sale price¥22,800

Additional charge for resizing: 1,500 yen Sale price¥3,000

Limited to 12 stones: 1 loose Australian iron opal (average 28ct, October birthstone opal) Multiple purchase discounts available Sale price¥7,980

Limited to 7 stones: 1 loose Australian iron opal (average 7ct, October birthstone opal) Multiple purchase discounts available Sale price¥4,980

Oregon Sunstone from the United States 4.0mm/0.206ct loose stone Sale price¥8,800

Oregon Sunstone from the United States 4.0mm/0.204ct loose stone Sale price¥6,980

Australian Shell Opal (Shell Opal) 51.801ct Rough Stone Sale price¥25,800

Limited quantity: Colombian mango quartz (medium size) Multiple purchase discounts available Sale price¥1,680

Limited Quantity: Colombian Mango Quartz (Small Size - Slim Type) Multiple Purchase Discounts Available Sale price¥1,180

Limited Quantity: Colombian Mango Quartz (Small - Thick) Multiple Purchase Discounts Available Sale price¥1,280

Oregon Sunstone from the United States 0.372ct loose stone Sale price¥12,800

Russian Yellow Diamond Rough (Sawable) 0.306ct Rough (Trigon) Sale price¥98,000

Limited to 7 stones: 1 loose Australian boulder opal (average 25 carats) Multiple purchase discounts available Sale price¥8,800

{For beginners} Gem gacha💎 1 loose gemstone (Chrome tourmaline, Mahenge spinel, etc.) cut by Sri Lankan craftsman Sanjay {Multiple purchase discounts available} Sale price¥3,980

Limited to 6 sets: Apatite 3-stone set (yellow, green, and blue) Multiple purchase discounts available Sale price¥5,980

Limited to 12 stones Tanzanian Milky Opal Cat's Eye (7.5 x 5.5 mm) Multiple purchase discounts available Sale price¥3,980

[Koshu Precious Stone Cutting Pluethree] Yellow Beryl 0.880ct Loose Sale price¥29,800

[Reception ends on 11/30]《Shipped from mid-January to late January》 “Bakuten!!” x KARATZ collaboration goods / Onaga T-shirt (black/white) Sale price¥3,980

Limited to 15 stones! Green Oregon Sunstone rough stone from the United States 💎 Average 1.5ct [Multiple purchase discounts available] Sale price¥5,980

Pt950ブラジル産パライバトルマリン0.034ctリング（フリュクーシュ枠・オーバルカット）

Pt950 Brazilian Paraiba Tourmaline Ring (Fluid Setting, Oval Cut) Sale price¥64,800

K18YG Brazilian Paraiba Tourmaline Ring (Flucche Setting, Pear Shape, Matte Finish) Sale price¥69,800

Brazilian Paraiba Tourmaline Ring and Half Eternity Ring Set (1.2mm) Sale price¥198,000

Limited to 18 stones: Myanmar spinel (3.5mm, pentagonal cut) 1 loose stone. Discounts available for multiple purchases. Sale price¥2,980

Limited to 5 stones: 1 synthetic moissanite loose stone (Sanjay cut hexagonal, 6mm) Multiple purchase discounts available Sale price¥8,800

Limited to 7 sets: Gemstone Encyclopedia Playing Cards + Gemstone Lucky Bag (worth 10,000 yen) with 4 Stones Sale price¥6,000

January birthstone rhodolite garnet rough stone and loose stone set of 2 (from Zambia) {Multiple purchase discounts available} {For beginners} Sale price¥2,980

April birthstone Morganite rough stone and loose stone set of 2 (from Nigeria) {Multiple purchase discounts available} {For beginners} Sale price¥3,980

March birthstone, aquamarine rough stone and loose stone set of 2 (from Nigeria) {Multiple purchase discounts available} {For beginners} Sale price¥3,980

November birthstone citrine rough and loose stone set of 2 (Madeira citrine, from Brazil) {Multiple purchase discounts available} {For beginners} Sale price¥3,980

Limited to 6 stones: 1 synthetic moissanite loose stone (hexagonal cut, 5mm) Multiple purchase discounts available Sale price¥6,980

Limited to 8 stones: Swiss blue topaz (4mm, rose cut) 1 loose stone. Discounts available for multiple purchases. Sale price¥3,980

Additional charge: K18WG (base metal) + 10,000 yen Sale price¥40,000

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.