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Vivid red spinel with violet undertones. In the past much confused with ruby but actually much more beautiful due to the high transparency. Beautiful stone with character that will not look out of place in a white gold ring with some fine diamond.

Color: red

Weight: 1.83 ct

Format (mm): 6.88 x 6.5 x 4.79

Cut: Mixed pillow

Origin: Sri Lanka

Treatment: Not observed

Certificate: House certificate

This stone is completely natural and untreated.

This stone is suitable for use in all types of jewelry.

Product number: 100512

Spinel

Spinel is a gemstone that has long stood in the shadow of the ruby and sapphire. Spinel is very similar in color palette to corundum but exhibits a much higher brightness and brilliance. In the past, ruby and red spinel were mistaken for the same mineral. Hence, spinel is common in antique jewelry.

The name spinel comes from the Latin word "spina" which means thorn. The name refers to the pointed crystals in this type of gemstone. Spinel occurs in the same geological environment as ruby and sapphire where it is found in river deposits and mines.

The spinel color palette mainly includes reds and blues. Intense red stones comparable to the best rubies are rare and loved. More often the spinel shows a subtle secondary hue. Pink spinels in particular are very attractive gemstones. Recent finds in Vietnam consisted of spinel in a neon pink and light blue color, something that was not yet known in the world of gemstones. Large finds of high-quality spinel in Tanzania have also made this mineral popular again.

The price for beautiful spinel has risen sharply in recent years. Hardly any new deposits are being discovered and the already known ones are becoming exhausted. Actually, this is the case with most gemstones. As a result, high-quality spinel will become increasingly rare and therefore also more expensive.

Special sapphire with an unusual color from Madagascar. The stone tends to ruby or pink sapphire but has a distinctly different shade. The completely natural stone therefore has a unique character.

Color: orange-red

Weight: 1.71 ct

Format (mm): 7.3 x 6 x 4.83

Cut: Oval mixed

Origin: Madagascar

Treatment: No

Certificate: House certificate

This stone is free of visible inclusions to the naked eye. This stone is completely natural and untreated.

This stone is suitable for use in all jewelry.

Product number: 100799

Sapphire

Ruby and sapphire are both color variants of the mineral corundum. While red corundum is known by the name ruby, all other colors of corundum are called sapphire. Traces of elements such as vanadium, iron, chrome and titanium are responsible for the wide color palette that characterizes sapphire.

Sapphire is derived from the Greek word "sappheiros" which means "blue stone" and comes in the colors blue and pink. The most expensive and sought after colors are royal blue, padparadscha (light pink / orange) and cornflower blue. Sapphire should not be too light on the one hand, but also not too dark on the other. Blue sapphires look best in daylight, but almost always show the pure blue in different types of artificial light.

In certain cases, small inclusions can give some blue sapphires a velvety appearance, further enhancing the beauty and value of these stones. For example, the deposits discovered in Kashmir around 1880 produced beautiful rare blue sapphires. These mines were largely exhausted around 1930. The padparadscha sapphire is just as popular and rare as the Kashmir sapphire. This sapphire color should combine 40 to 60 percent pink and 40 to 60 percent orange hues at the same time. Such untreated natural sapphires are reaching record collectors.

Unfortunately, they are often confused with inferior padparadscha sapphires that have acquired this color through heating and chemical additives.

There are also green, yellow, orange and bright neon pink or purple colored sapphires, which are also more in the expensive segment. Current mining areas are in Sri Lanka, Australia, Cambodia, Kenya, Laos, Madagascar, Nigeria, Tanzania and Vietnam.

In summary, it can be said that sapphires are among the best known, most sought after and most expensive colored gemstones in the world. A timeless gem with a high potential for value increase.

Intense red ruby with a high transparency of 1.58 carat. This high quality ruby comes from the Capo Delgado province in northern Mozambique. The best rubies are mined here today. This stone is perfect for use as a ring stone or as a stable investment.

Color: red

Weight: 1.58 ct

Format (mm): 8.08 x 6.21 x 3.02

Cut: mixed pillow

Origin: Mozambique

Treatment: not observed

Certificate: home certificate

This stone has some inclusions. This stone is completely natural and unheated *.

This stone is suitable for use in all jewelry and comes with a certificate of authenticity.

Product number: 100777

* No traces of heating were found during investigation. 

Ruby 

The ruby is one of the most famous gemstones in the world and also one of the most expensive. The name is derived from the Latin word "ruber" which means red. It belongs to the group of corundum and while red corundum is called rubies, all other colors are called sapphire. The red color is due to the presence of traces of chromium. The reds have a wide color range from orange-red to purplish-red and although personal preferences should also be taken into account at the time of purchase, the most desirable and valuable color is an intense red with no secondary purple or yellow hue. 

The ruby is a type 2 gemstone. This means that fine inclusions are tolerated. In fact, these ensure that the color comes into its own even better. In addition, the chrome content ensures that the stone fluoresces with red light in daylight, which further enhances the color. The high hardness of 9 (just after diamond) makes it the ideal gemstone for jewelry. The classic location for ruby is Mogok in Burma. The terms “Mogok” or “Burma” ruby are still used for the best qualities even though the stones are not from there.

High quality rubies nowadays come mainly from East Africa, especially Mozambique and Madagascar. Low quality rubies are known from many locations worldwide. Very pure rubies with a good color are extremely rare. Especially larger stones over 2 carats. Rubies over 10 carats are extremely rare and extremely precious.

The big auction houses have been trading top rubies for years with carat prices ranging from a few hundred thousand euros to more than a million euros, which is considerably higher than the prices for top diamonds. 

Rubies are usually heated like almost all corundum, which is fine. See also our treatments section. In addition, corundum can acquire a red tinge due to the addition of beryllium during heating. Ruby has also been synthetically produced since 1883. It is therefore advisable to buy such stones only from reputable dealers or jewelers. Since the ruby is an extremely rare gem, especially when compared to diamonds, it represents a good long-term investment.

Intense rubber lite tourmaline in a somewhat unusual triangular cut. This stone comes from the famous tourmaline mines of Minas Gerais in Brazil. A beautiful stone to use in a ring or pendant.

Color: red orange

Weight: 1 ct

Format (mm): 6.85 x 3.9

Cut: triangle mixed

Origin: Brazil

Treatment: No

Certificate: House certificate

This stone is free of inclusions to the naked eye. This stone is completely natural and probably untreated.

This stone is suitable for use in all jewelry.

Product number: 100117

Tourmaline 

Tourmaline is the ultimate color stone. All colors occur and tourmaline is particularly known for its multi-colored gemstones. The material was first described after Dutch merchantmen took it from Sri Lanka in the early 18^e century. They called it Ashchentrekker because when heated it becomes statically charged and attracts and shoots dust particles, which the sailors found very fascinating. The Sinhalese term “Toramalli”, from which the name is clearly derived, refers to the color of the material.  

The mineral elbaite (named after the Italian island of Elba) is the most prominent member of the tourmaline gemstone group and most commonly used as a gemstone. 

Because the tourmaline family consists of more than 30 species, this is not practical for the jeweler. They name the tourmalines based on their color. Green tourmaline is called verdelite, red tourmaline rubellite and dark blue indigolite. The Paraiba tourmaline (elbaite with traces of copper) occupies a special position as a rare turquoise blue variety, while chromium tourmaline is recognized as a separate variety. These are special bright green stones of the tourmaline type dravite that are colored by chrome and vanadium. 

Tourmaline has a very strong pleochroism (bi-color). Grinding should be taken into account here. Tourmaline color can also react strongly to different types of light. Tourmaline usually looks best in daylight. 

Tourmaline as a mineral is very common. Bright colors are rare, however. Gemstone material used to come mainly from Brazil and California. Today there are more sites known. The richest production comes from Afghanistan and Pakistan, Madagascar, Namibia and still Brazil.  

Where 40 years ago people still looked down on tourmaline, this has changed a lot with the discovery of the spectacular Paraiba and chrome tourmalines. Today, tourmaline has also become a precious gem.

As with many other gemstones, it is getting harder and more expensive to mine tourmaline, driving up the price. In this regard, high quality large tourmalines are a safe investment with high potential for appreciation.