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12月誕生石

december birthstone

December's birthstones are turquoise , lapis lazuli , tanzanite , and zircon .

Turquoise is a gemstone with a unique blue-green color that is famous for being used in Indian jewelry. Some have a distinctive black tracery pattern called a spider web. High-quality products without mesh patterns are called "Sleeping Beauty."

Lapis lazuli , also known as lapis lazuli in Japanese, is a gemstone that was once widely used as a paint. It is also famous for being used in Vermeer's masterpiece, ``Girl with a Pearl Earring.'' Gemstones are made from a collection of multiple minerals, and those that contain golden pyrite are often likened to the night sky, and I think they are gemstones with a unique beauty.

Tanzanite is the gemstone name given to the blue to violet zoisite. It is also famous for its strong pleochroism, which shows different colors when viewed from different angles, making it an attractive gemstone that makes you want to collect many different colors and pleochroisms. Large crystals can often be found here, so it is also recommended for those who like large gemstones.

Zircon is thought to be the first mineral formed on Earth, and is a gemstone that has been with humans since ancient times. When exposed to light, it emits strong dispersed light (fire). One of its characteristics is that it exhibits a phenomenon called doubling, in which letters and facet edges placed underneath appear double.

Karatz GemMagazine
" List of December birthstones/birthstones "

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Sold out 【11524809掲載】タンザナイト 4.48ctルース
Sold out 【11524689掲載】タンザナイト 2.81ctルース
Sold out 【11524688掲載】タンザナイト 1.90ctルース
Sold out タンザナイト 2.320ctルース
Sold out 【12524453掲載】タンザナイト 1.930ctルース
Sold out タンザナイト 1.440ctルース
Sold out 【11523474掲載】タンザナイト 2.240ctルース
Sold out K18タンザナイト1.36ct リング - カラッツSTORE
Sold out Pt900/K18タンザナイト1.48ct リング - カラッツSTORE
Sold out K18バイカラータンザナイト7.55ct ペンダント(ネックレス) - カラッツSTORE
Sold out K18タンザナイト0.85ct ペンダント(ネックレス) - カラッツSTORE
Sold out K18タンザナイト0.78ct ペンダント(ネックレス) - カラッツSTORE
Sold out K18タンザナイト0.76ct ペンダント(ネックレス) - カラッツSTORE
Sold out K18タンザナイト1.25ct ペンダント(ネックレス) - カラッツSTORE
Sold out K18タンザナイト1.32ct・ダイヤモンドリング - カラッツSTORE
Sold out Pt900タンザナイト1.327ct リング - カラッツSTORE
Sold out 【21601386掲載】K18タンザナイト1.80ct リング
Sold out K18タンザナイト1.11ct リング - カラッツSTORE
Sold out K18タンザナイト0.60ct リング - カラッツSTORE
Sold out K18WGブルートパーズ・タンザナイトリング - カラッツSTORE
Sold out Pt900タンザナイト2.63ct ペンダント(ネックレス) - KARATZ STORE|カラッツSTORE
Sold out K18タンザナイト1.83ct リング - KARATZ STORE|カラッツSTORE
Sold out K18タンザナイト0.96ctリング - KARATZ STORE|カラッツSTORE
Sold out K18タンザナイト0.55ct リング - KARATZ STORE|カラッツSTORE
Sold out K18タンザナイトペンダント - KARATZ STORE|カラッツSTORE
Sold out K18タンザナイト1.2ct ペンダント(ネックレス) - KARATZ STORE|カラッツSTORE
Sold out K18タンザナイト4.21ct ペンダント(ネックレス) - KARATZ STORE|カラッツSTORE
Sold out K18タンザナイト5.42ct ペンダント(ネックレス) - KARATZ STORE|カラッツSTORE
Sold out Pt900タンザナイト0.71ct リング - KARATZ STORE|カラッツSTORE
Sold out Pt900バイカラータンザナイト1.009ct リング - KARATZ STORE|カラッツSTORE
Sold out Pt950バイカラータンザナイト0.661ct リング - KARATZ STORE|カラッツSTORE
Sold out Pt900タンザナイト2.44ct ペンダントトップ(ネックレストップ) - KARATZ STORE|カラッツSTORE
Sold out K18WGタンザナイトリング - KARATZ STORE|カラッツSTORE
Sold out K18WGタンザナイトリング - KARATZ STORE|カラッツSTORE
Sold out Pt900バイカラータンザナイト0.892ct リング - KARATZ STORE|カラッツSTORE
Sold out K18タンザナイト・ピンクトルマリンペンダント(ネックレス) - KARATZ STORE|カラッツSTORE
Sold out K18WGタンザナイトリング - カラッツSTORE
Sold out K18タンザナイト0.62ct ペンダント(ネックレス) - KARATZ STORE|カラッツSTORE
Sold out Pt900タンザナイト1.16ct リング - KARATZ STORE|カラッツSTORE
Sold out Pt950バイカラータンザナイト0.806ct ペンダントトップ(ネックレストップ) - KARATZ STORE|カラッツSTORE
Sold out K18バイカラータンザナイト0.84ct ダイヤモンドリング - KARATZ STORE|カラッツSTORE
Sold out K18タンザナイト0.64ct ダイヤモンドリング - KARATZ STORE|カラッツSTORE
Sold out K18バイカラータンザナイト0.72ct リング - KARATZ STORE|カラッツSTORE
Sold out Pt900タンザナイト0.88ct リング - KARATZ STORE|カラッツSTORE
Sold out Pt900タンザナイトリング(ピンキーリング) - KARATZ STORE|カラッツSTORE
Sold out K18タンザナイト・アイオライト・ブルームーンストーンリング - KARATZ STORE|カラッツSTORE
Sold out Pt900スピネル・タンザナイト・アクアマリンリング - KARATZ STORE|カラッツSTORE
Sold out Pt900タンザナイト0.32ct ピンキーリング - KARATZ STORE|カラッツSTORE

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 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.