alexandrite

Alexandrite is known as one of the birthstones for June. Its main feature is its color-change effect, which means that its color changes depending on the light source. It was once mined in large quantities in Russia, but today its main production area is said to be Brazil. Since it is difficult to find large stones, the larger they are and the more obvious their color-change effect is, the more valuable they are.

Carats Gem Magazine
" alexandrite "

[12554117] Brazilian Alexandrite 0.058ct loose stone Sale price¥14,800

[September 20th, 10 PM Sale] Synthetic Alexandrite 5.7mm/0.827ct Loose Stone Sale price¥19,800

[Sold at 10 PM on September 18th] Synthetic Alexandrite 1.538ct Loose Stone Sale price¥29,800

ブラジル産アレキサンドライト・ムーンストーン2石セット（6月誕生石セット）《複数購入割引有》

《Limited to 32 stones》 Brazilian Alexandrite Moonstone 2 stone set (June birthstone set)《Multiple purchase discount available》 Sale price¥3,980

Top Quality: Brazilian Alexandrite 1 Stone Loose (2.0mm, Hematita Mine) Multiple Purchase Discounts Available Sale price¥9,800

Brazilian alexandrite (average 0.12ct) loose (multiple purchase discount available) Sale price¥19,800

Top Quality: Brazilian Alexandrite 1 Stone Loose (2.2mm, Hematita Mine) Multiple Purchase Discounts Available Sale price¥11,000

Limited to 4 stones: 1 Brazilian Alexandrite loose stone (rose cut, 3.3mm/average 0.13ct) Multiple purchase discounts available Sale price¥12,800

Limited to 12 stones: 1 Brazilian Alexandrite loose stone (round cut, 1.0mm) Multiple purchase discounts available Sale price¥4,980

Limited to 9 stones: 1 Brazilian Alexandrite loose stone (rose cut, 3mm/average 0.105ct) Multiple purchase discounts available Sale price¥9,800

[On sale at 10pm on September 6th] Brazilian Alexandrite 0.326ct Loose Stone Sale price¥79,800

Brazilian alexandrite 0.102ct loose Sale price¥15,800

Brazilian alexandrite 0.091ct loose Sale price¥15,800

[Posted 12532932] Alexandrite 0.138ct loose Sale price¥18,800

[On sale at 10pm on August 14th] Alexandrite 0.272ct loose stone Sale price¥59,800

[25.06CP] Synthetic Alexandrite 1.552ct Loose Stone Sale price¥18,800

Brazilian alexandrite 0.151ct loose Sale price¥25,800

Synthetic Alexandrite 0.460ct loose stone Sale price¥14,800

Synthetic Alexandrite 0.560ct loose stone Sale price¥14,800

Russian Alexandrite 0.065ct loose stone Sale price¥59,800

Brazilian Alexandrite 0.097ct loose stone Sale price¥18,800

Synthetic Alexandrite 0.570ct loose stone Sale price¥18,800

Brazilian alexandrite 0.082ct loose Sale price¥12,800

Russian alexandrite 0.093ct loose Sale price¥39,800

Brazilian Alexandrite 0.091ct loose stone (princess cut) Sale price¥22,800

Pt950 Brazilian Alexandrite 0.144ct Ring Sale price¥79,800

Brazilian Alexandrite 0.056ct loose stone Sale price¥22,800

[Available at 10 PM on August 17th] Brazilian Alexandrite 0.054ct Loose Stone (Emerald Cut) Sale price¥18,800

0.095ct Brazilian Alexandrite Loose Stone (Emerald Cut) Sale price¥35,800

Brazilian alexandrite 0.078ct loose Sale price¥29,800

Brazilian Alexandrite 0.071ct loose stone (emerald cut) Sale price¥29,800

Indian Alexandrite Cat's Eye 0.643ct Loose Stone Sale price¥18,800

Brazilian Alexandrite 0.147ct loose stone (princess cut) Sale price¥29,800

Brazilian Alexandrite 0.052ct loose stone Sale price¥9,800

Brazilian Alexandrite 2.9mm/0.123ct loose stone Sale price¥29,800

Brazilian Alexandrite 0.072ct Loose Stone JTL Catalog Sale price¥12,800

Synthetic Alexandrite 0.472ct loose stone Sale price¥8,800

Synthetic Alexandrite 0.411ct loose stone Sale price¥8,800

Alexandrite 0.201ct loose stone Sale price¥39,800

Brazilian Alexandrite 0.073ct loose stone (princess cut) Sale price¥16,800

Brazilian Alexandrite 0.089ct loose stone (princess cut) Sale price¥19,800

Synthetic Alexandrite 0.330ct loose stone Sale price¥9,800

Synthetic Alexandrite 0.502ct loose stone Sale price¥15,800

Synthetic Alexandrite 0.282ct loose stone Sale price¥9,800

Brazilian Alexandrite 0.128ct loose stone Sale price¥25,800

Brazilian Alexandrite Cat's Eye 3.3mm/0.219ct Loose Stone (Hemachita Mine) Sale price¥32,800

Brazilian Alexandrite Cat's Eye 3.3mm/0.260ct Loose Stone (Hemachita Mine) Sale price¥39,800

Indian Alexandrite Cat's Eye 0.787ct Loose Stone Sale price¥25,800

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.

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.