Gemstones

agate

Find out about the differently colored patterned agate.

alexandrite

The Alexandrite changes its color in certain light.

amethyst

Learn more about purple amethyst from the group of quartz.

Ametrine

The rare ametrine is a two-colored quartz variety.

Aquamarin

Discover the Aquamarine and its seawater colors.

rock crystal

The rock crystal is quartz in its purest and most transparent form.

amber

Learn more about amber and its quality characteristics.

chalcedony

chalcedony refers to both a variety and a quartz group.

chrysoberyl cat's eye

The Chrysoberyl Cat's Eye has a special optical effect.

citrine

Find out about the quartz mineral citrine.

Conch Pearl

The Conch Pearl is particularly popular not only because of its rarity.

cordierite (iolite)

Discover cordierite (iolite ) and its characteristics.

diopside

Learn more about Diopside from the mineral class of silicates.

Gemstones by RENÉSIM

At RENÉSIM you will find a large selection of valuable gemstones.

fire opal

Find out about the characteristic fire opal.

garnet

The Garnet exists in many more colors than just its deep red.

hematite

A striking feature of hematite is its mirror shine.

jade

jade is particularly valuable in some Asian cultures.

kunzite

The Kunzite is particularly popular in a deep pink.

Labradorite

The Labradorite is characterized by the phenomenon of labradorescence.

lapis lazuli

A characteristic of lapis lazuli are its golden pyrite spots.

Larimar

The Larimar is the national gemstone of the Dominican Republic.

malachite

Discover Malachite and its multi-color and patterning.

moonstone

Find out about the shimmering moonstone.

Morganite

The Morganite exists in various shades of pink.

onyx

The deep black color of onyx makes the gemstone particularly valuable.

opal

Discover the different variations of the rare opal.

opals

Characteristic of opals are the colorful patterns.

Padparadscha

The Padparadscha is a sapphire that resembles a lotus flower in color.

Peridot (Olivine)

Find out about the olive green peridot (olivine).

pearl

pearls are particularly suitable for timeless, classic pieces of jewelry.

Prasiolite

Discover the golden-green prasiolite from the group of quartz.

Rhodolite

The color of the rhodolite varies from red to violet.

rose quartz

The rose quartz is considered a symbol of love and friendship.

Rubellite

Find out about Rubellite from the tourmaline group.

ruby

ruby is one of the most valuable gemstones of all.

sapphire

The Sapphire is also called the gemstone of heaven.

emerald

Discover the intense green emerald and its properties.

Sonnenstein

Learn more about the Sunstone and its characteristics.

spinel

The spinel is most popular in a deep, ruby-like red.

star sapphire

As a star sapphire A sapphire with an asterism is called a sapphire.

South Sea pearl

The South Sea Pearl is probably the best known and most popular type of pearl.

Tahitian pearl

Find out about the particularly rare, dark Tahitian pearl.

Tanzanite

The Tanzanite is named after its only place of origin, Tanzania.

tiger eye

A tiger's eye is a honey-colored gemstone with a cat's eye effect.

topaz

Discover the Topaz and its special characteristics.

tsavorite

The emerald-like, green tsavorite belongs to the garnet family.

turquoise gemstone

The turquoise is one of the oldest gemstones in the world.