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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 タンザナイト 1.440ctルース
Sold out 【12524039更新】タンザナイト 0.717ctルース
Sold out 【12524027掲載】タンザナイト 0.948ctルース
Sold out 【12524007掲載】ジルコン 8.400ctルース
Sold out 【12524006掲載】ジルコン 7.200ctルース
Sold out Zircon 0.360ct loose
Sold out 【12523866掲載】タンザナイト 0.670ctルース
Sold out 【12523578掲載】タンザナイト 0.640ctルース
Sold out タンザナイト 0.590ctルース
Sold out Tanzanite 0.480ct loose
Sold out 【11523484掲載】タンザナイト 0.898ctルース
Sold out 【11523482掲載】タンザナイト 0.960ctルース
Sold out 【11523478掲載】バイカラーゾイサイト 1.038ctルース
Sold out 【11523477掲載】タンザナイト 0.890ctルース
Sold out 【11523474掲載】タンザナイト 2.240ctルース
Sold out 【11523473掲載】タンザナイト 1.380ctルース
Sold out 【12523256掲載】タンザナイト 5.550ctルース
Sold out 【12523144掲載】バイカラータンザナイト 7.640ctルース
Sold out 【11522805掲載】タンザナイト 4.010ctルース
Sold out 【11522803掲載】タンザナイト 5.940ctルース
Sold out 【11522802掲載】タンザナイト 4.400ctルース
Sold out 【11522767掲載】タンザナイト 2.850ctルース
Sold out 【11522766掲載】タンザナイト 1.550ctルース
Sold out Tanzanite 1.006ct loose
Sold out 【12522680掲載】ジルコン 0.720ctルース
Sold out 【12522679掲載】ジルコン 0.680ctルース
Sold out 【12522678掲載】ジルコン 0.640ctルース
Sold out 【12522677掲載】ジルコン 0.550ctルース
Sold out 【12522675掲載】ジルコン 0.750ctルース
Sold out 【12522534掲載】ジルコン 7.190ct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血赤珊瑚0.54ct・トルコ石(ターコイズ)ペンダント - カラッツSTORE
Sold out K18バイカラータンザナイト0.73ct リング - 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 【12522429掲載】ジルコン 0.750ctルース
Sold out 【12522427掲載】ジルコン 0.680ctルース
Sold out Pt900タンザナイト・ペリドット・シトリン・ピンクトルマリンペンダント(ネックレス) - 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 - カラッツSTORE
Sold out K18タンザナイト0.60ct リング - 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.

The fifth reprint has been decided and is now on sale at bookstores nationwide and online.

Written by KARATZ, book “Jewelry Illustrated Book”

The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.