Birthstone in July

⌛Time it takes to read this article: < 1 minutesFrom my collection, I will introduce ruby, the birthstone of July. Rubies belong to the same mineral corundum as sapphire, and the chemical formula is "Al2O3".

Birthstone in June

⌛Time it takes to read this article: 2 minutesJune's birthstones are pearl, moonstone, and alexandrite. Here I would like to introduce moonstone and alexandrite from my collection. 💎 Moonstone Moonstone is a mineral belonging to the feldspar family. Among the moonstones, one of the most beautiful stones is the "Royal Blue Moonstone", which shows blue scilla. 💎 Alexandrite Alexandrite was first discovered in the Ural Mountains of the Russian Empire. In Russia, April 29th, the day it was presented to Tsar Nicholas I, was the 12th birthday of Crown Prince Alexander II, so it is said to have been named after that. Its color changes to green under natural light (ultraviolet light) and red under incandescent light. 💎 Color change of natural alexandrite 💎 Color change of alexite (synthetic stone)

Birthstone in May

⌛Time it takes to read this article: 2 minutesEmerald – Ring (emeald + melee diamonds) & Pendant made in Cambodia (synthesis stone) May's birthstones are jade and emerald. 💎 Green is said to be a soothing color, and looking at it will certainly make you feel good. In fact, emeralds are one of my favorite gemstones, and I have a surprising amount of them on my "secret jewelry collection" site. The Japanese name for emerald is beryl. The mineral name is beryl, and the main component is beryllium (element symbol: Be). This gemstone is unique in that its crystals are in the shape of a hexagonal prism. Emerald has a Mohs hardness of 7.5, which is relatively hard, but it has the weakness of being easily broken, so when making it loose, it is cut into a shape that is as hard to break as possible (such as an emerald cut). There are many other beautiful green stones such as jade, amazonite, dematoid garnet, chrome diopsite, green tourmaline, tsavorite, and green agate. Among them, I think the demantoid garnet from Russia is the rarest. The main sources of emeralds are Colombia (including the Muzo mine) and Brazil. Jade is produced in Myanmar and China, but it can also be found in Itoigawa, Niigata Prefecture, Japan. Below is a gallery of emeralds and jade. Emerald – Loose stones Emerald – Loose stones (close-up) Emerald – Synthesis crystal stone & Natural Gemstone Emerald – Synthesis crystal stone & Natural Gemstone (close-up) Jade – Ring & Loose stones Jade – Gemstone Jade – Mouse pad 💎 Click here to see more gems ⇒ Secret Jewelry Collection