Are Yogo Sapphires valuable?

Yogo Sapphires are the most precious sapphires found in North America. They are considered to be among the finest sapphires in the world. These unique gems come from only limited area, named Yogo Gulch, located in the Little Belt Mountains of Montana.

How can you tell a Yogo Sapphire?

Often, they appear blue in daylight and violet to purple in incandescent light. Pale colors shift from sky blue to lavender. Yogo sapphires have a beautiful deep cornflower blue color without any treatment. However, these stones tend to be small, with few above 0.5 carats.

What is unique about Yogo Sapphire?

Yogo sapphires are unique in that they are free of cavities and inclusions, have high uniform clarity, lack color zoning, and do not need heat treating because their cornflower blue coloring is uniform and deep. Unlike Asian sapphires, they maintain their brilliance in artificial light.

Can you mine Yogo Sapphires?

Because Yogo sapphires occur within a vertically dipping resistive igneous dike, mining efforts have been sporadic and rarely profitable. It is estimated that at least 28 million carats (5.6 t or 5.5 long tons or 6.2 short tons) of Yogos are still in the ground.

What is a Montana Yogo Sapphire?

Montana is known as the Treasure State because it is rich in many mineral and gemstone sources, including two types of sapphires: the Yogo Sapphire from the central area of the state, and Fancy Montana Sapphires found mostly in the western half of the state.

What jewelry is Montana known for?

Montana is known as the Treasure State, which is no shock considering the beautiful sapphires that originate there. When the sapphires were discovered in Montana, they were called “the finest precious gemstones ever found in the United States.”

Are Montana sapphires good quality?

Unique colors, high clarity, USA-born status, and great durability make Montana Sapphires shine. Montana Sapphires are part of the larger gem family “corundum.” Corundum is a hard stone, at a 9 out of 10 on the Mohs scale, making it very durable to wear in jewelry.

Are Montana sapphires ethical?

Montana Sapphires are also a great choice for those seeking ethically-mined gemstones — especially for custom ethical engagement rings that #ReflectYOU.

Are Montana sapphires rare?

Are Montana Sapphires Rare? Montana sapphire is not found in very large rough pieces. Considering that a rough nugget will yield a cut stone only about 1/3 of the original size means that large, fine quality faceted Montana sapphires are very rare.

How can you tell a rough sapphire?

The cleanliness, absence of fractures and cavities examined by the naked eye and through magnification loop will determine the quality of the rough. Visible presence of foreign material is a sign of a bad rough. Sometimes this foreign material with a different color can go deep into the stone making it less valuable.

Is padparadscha rare?

Padparadscha sapphires are one of the rarest of sapphires. These extremely rare stones are unknown to most, but when discovered usually become an absolute favorite. They are strikingly beautiful and almost no other colored stone compares to this unique mix of pink and orange.

What is the largest cut Yogo sapphire?

The largest cut Yogo is 10.2 carats (2.04g). Because of the rarity of large rough Yogo sapphires, Yogo gem prices begin rising sharply when they are over 0.5 carats (0.10g), and skyrocket when they are over 1 carat (0.20g). Montana sapphires in general come in a variety of colors, but Yogos are almost always blue.

Are Yogo sapphires good?

The United States Geological Survey and many gem experts have stated that Yogos are “among if not the world’s finest sapphires.” The roughs tend to be small, so cut Yogo gems heavier than 2 carats (0.40g) are unusual and highly desired.

What are Montana Yogo sapphires?

Montana yogo sapphire tend to be beautiful, small, and very expensive. Sapphires are a 9 on the Mohs hardness scale, so they’re a gem that can withstand daily wear and be handed down for generations. The rough yogo sapphire crystal tends to be small and flat, so cut Yogo sapphires heavier than 2 carats are rare.

What is a Yogo Gulch Sapphire?

They are considered to be among the finest sapphires in the world. These unique gems come from only limited area, named Yogo Gulch, located in the Little Belt Mountains of Montana. First found accidentally by gold prospectors in the 1880s, the sapphires eventually became the focus of the mining in the area.