July birthstone

July's birthstone is Ruby Sphene .

Ruby can be said to be the representative of red gemstones. It is a gem that has been loved all over the world since ancient times. In fact, it belongs to the same mineral corundum as the striking blue sapphire. Corundum is said to be the second hardest material after diamond, and due to its durable properties, it can be enjoyed as everyday jewelry. The stronger the red and the more vivid the color, the more valuable it is, and the highest quality is called "pigeon blood."

Sphene is a gemstone that is also known for emitting dispersed light (fire) that is stronger than diamond. One of its characteristics is that it is highly pleochroic, showing different hues depending on the viewing angle. Depending on the angle of light, fire and pleochroism can appear at the same time, giving it an enchanting beauty that captivates the viewer.

Karatz GemMagazine
" List of July birthstones and birthstones "

Sold out

Ruby from Greenland 0.365ct loose with certificate

Sold out

Ruby from Greenland 0.337ct Ruth certificate included

Sold out

Ruby from Greenland 0.348ct Ruth certificate included

Sold out

Ruby from Greenland 0.311ct with certificate

Sold out

Ruby and ice ruby from Greenland 2 stone set 0.84ct loose with certificate

Sold out

Greenland Ruby/Ice Ruby 2 stone set 0.85ct loose with certificate

Sold out

Ruby from Greenland 0.310ct loose with certificate

Sold out

Ruby from Greenland 0.704ct loose with certificate

Sold out

Ruby from Greenland 0.655ct loose with certificate

Sold out

Ruby from Greenland 0.272ct loose with certificate

Sold out

Greenland Ruby 0.665ct Certificate

Sold out

【様専用】【12537186掲載】□グリーンランド産ルビー 0.381ctルース

Ruby from Greenland 0.381ct loose with certificate

Sold out

Burmese unheated star ruby 0.487ct loose

Sold out

Burmese star ruby 0.492ct loose

Sold out

Crimson Red Ruby from Thailand 1.160ct Ruth GIA

Sold out

Unheated ruby from Mozambique 0.30ct loose GIA

Sold out

Pigeon blood ruby 0.40ct loose AIGS

Sold out

Sphene 0.920ct loose

Sold out

Sphene 0.610ct loose

Sold out

Sphene 0.340ct loose

Sold out

Ruby from Mozambique 5mm/0.762ct loose

Sold out

Burmese ruby 3.5mm/0.224ct loose

Sold out

Ruby 0.193ct loose (princess cut)

Sold out

Ruby 0.192ct loose (princess cut)

Sold out

Ruby 0.596ct loose (buff top)

Sold out

Ruby 0.102ct loose (bucket cut)

Sold out

Ruby 0.104ct loose (bucket cut)

Sold out

Ruby in Granite (Granite) 22.990ct loose with patch

Sold out

Sphene 0.510ct loose

Sold out

Burmese unheated star ruby 1.289ct loose

Sold out

Unheated Pigeon Blood Ruby 0.430ct Loose AIGS

Sold out

Ruby 0.700ct loose (pear shape cut)

Sold out

Color change sphene 0.510ct loose

Sold out

Color change sphene from Pakistan 0.310ct loose

Sold out

Color change sphene 0.210ct loose

Sold out

Color change sphene 0.60ct loose

Sold out

Color change sphene 0.220ct loose

Sold out

Color change sphene from Pakistan 0.190ct loose

Sold out

【KEN氏】スフェーン 4.6mm/0.483ctルース - カラッツSTORE

[KEN] Sphene 4.6mm/0.483ct loose

Sold out

Sphene from Pakistan 4.5mm/0.406ct loose

Sold out

Sphene 0.70ct loose

Sold out

Sapphire ruby 2 stone set 0.33ct loose

Sold out

Burmese pigeon blood ruby 0.420ct loose AIGS

Sold out

[KEN] Sphene 0.262ct loose

Sold out

Sphene 1.680ct loose

Sold out

【カラフリ】K18WGルビー0.25ct・ダイヤモンド0.45ct ピンクサファイア0.25ctペンダント（ネックレス） - カラッツSTORE

[Colorful] K18WG ruby 0.25ct, diamond 0.45ct, pink sapphire 0.25ct pendant (necklace)

Sold out

Ruby Infelspur 2.283ct Ruth Japanese-German Appraisal

Sold out

Sphene 0.360ct 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.

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.

KARATZ・Five Commitments

NEWS一覧