Types of gemstones

Gemstones have captivated cultures throughout history with their beauty, symbolism, and perceived powers. These natural minerals are mainly classified into precious and semi-precious gemstones. Precious stones—diamonds, rubies, sapphires, and emeralds—are prized for their rarity, brilliance, and historical value, making them the most sought-after. Semi-precious stones, like amethyst, garnet, and turquoise, offer beauty and variety but are generally more common and accessible. This distinction, rooted in tradition, reflects differences in rarity, luster, and color intensity, which influence their desirability and value in the gemstone market.

Color Intensity and Quality
Precious Gemstones: Precious stones like rubies, sapphires, emeralds, and diamonds are often prized for their deep, vivid, and highly saturated colors. For example, the rich “pigeon blood” red of rubies or the deep blue of sapphires is rare and highly sought after. The colors are usually uniform and intense, contributing to their high value.
Semi-Precious Gemstones: While some semi-precious stones have beautiful colors, they often lack the uniform saturation seen in precious gems. Stones like amethyst, citrine, and peridot can have striking colors, but they may be lighter, less intense, or more variable in hue.

Clarity and Texture
Precious Gemstones: These stones tend to have superior clarity, with fewer inclusions or imperfections, especially in high-quality specimens. While some, like emeralds, often have inclusions, these are sometimes valued as part of their character (e.g., “jardin” in emeralds). Precious gemstones also generally have a smoother, more lustrous texture when polished.
Semi-Precious Gemstones: Semi-precious stones often have more inclusions, internal fractures, or variations in clarity. For example, stones like garnet or tourmaline can have visible inclusions or uneven color distribution. Their texture, while still appealing, may be less lustrous or more prone to flaws compared to precious stones.

Optical Effects
Precious Gemstones: High-quality precious stones exhibit superior brilliance, fire (dispersion of light into rainbow colors), and sparkle. Diamonds, for instance, are renowned for their exceptional light performance.
Semi-Precious Gemstones: While some semi-precious stones like opal and moonstone display unique optical effects (e.g., play-of-color or adularescence), these effects are different from the brilliance and fire seen in diamonds and other precious gems.

Precious Gemstones

DIamonds

Sapphires

Emeralds

Rubies

Diamond

Color: Colorless to various shades (yellow, pink, blue, etc.)
Characteristics: Known for its exceptional hardness (10 on the Mohs scale) and brilliance. Diamonds are valued for their clarity, cut, and color

Sapphire

Color: Primarily blue, but can occur in various colors including pink, yellow, and green (excluding red, which is classified as ruby)
Characteristics: Another variety of corundum, sapphires are prized for their hardness (9 on the Mohs scale) and color. Blue sapphires are the most famous, but fancy sapphires in other colors are also highly valued.

Ruby

Color: Various shades of red, from pinkish to deep red (often termed “pigeon blood red”)
Characteristics: A variety of corundum, valued for its intense color and hardness (9 on the Mohs scale). Rubies are known for their rich, vivid hues and are often used in high-end jewelry.

Emerald

Color: Green, ranging from light to deep green
Characteristics: A variety of beryl, known for its distinct green color and moderate hardness (7.5 to 8 on the Mohs scale). Emeralds are often valued for their vibrant green hue and historical significance, despite commonly having inclusions.

Primary Semi-Precious Gemstones

Amethyst

Garnet

Citrine

Topaz

Peridot

Aquamarine

Tourmaline

Moonstone

Opal

Turquoise

Lapis Lazuli

Jasper

Onyx

Chrysoprase

Labradorite

Sardonyx

Malachite

Spinal

While there are hundreds of semi-precious gemstones in the world, we’ve curated this list to focus on the 18 types that are most popular and widely used in jewelry and decorative pieces. These selections include stones that offer the best combination of beauty, availability, and market demand. By concentrating on these key gemstones, we ensure that our customers have access to the most versatile and sought-after options, ranging from timeless classics to trendy favorites.