The Ultimate Guide to Birthstones for Jewellery

Gemmology

Written by Bérengère Treussard - Wednesday, February 14, 2024

The tradition of assigning a gemstone to each month of the year dates back to antiquity. These stones, known as birthstones, are often used in jewellery to craft unique and meaningful pieces.

Whether you're looking for a ring, a bracelet, earrings, or any other piece of jewellery as a gift, this comprehensive guide will help you discover the birthstone associated with your birth month, providing insights into its significance and properties.

Indeed, birthstones, beyond their symbolic and spiritual meanings, possess unique physical properties that make them valuable from a gemmological perspective. Each birthstone has its own chemical composition, crystalline structure, and optical characteristics that set them apart from one another.

January – Garnet

Garnet is a gemstone that comes in a variety of colours, ranging from deep red to green, as well as shades of orange and pink. Composed of aluminium silicate and iron, garnet is often linked to energy, passion, and creativity. It is also considered a protective stone, used to balance emotions and boost self-confidence. In jewellery, garnet is often used to craft timeless and elegant pieces such as rings, bracelets, and earrings.

Rhodolite garnet rings by Isabelle Langlois © Bérengère Treussard

February – Amethyst

Amethyst, a purple gemstone belonging to the quartz family, is cherished for both its aesthetic appeal and spiritual meaning. Linked to wisdom, mental clarity, and spirituality, amethyst is also revered as a protective stone against negative energies. In jewellery, amethyst is often used to create delicate and feminine pieces, including rings adorned with this soothing gemstone.

Isabelle Langlois amethyst ring © Bérengère Treussard

March – Aquamarine

Aquamarine is a translucent gemstone that comes in shades ranging from light blue to blue-green. Belonging to the beryl family, alongside emerald and morganite, aquamarine is linked to clarity, communication, and inner peace. It is also regarded as a protective stone for travellers, believed to bring luck and success. Jewellery adorned with aquamarine, such as rings and bracelets, is often worn to instil a sense of calm and harmony in the wearer.

Alessio Boschi ring © Bérengère Treussard

April – Diamond

Diamond is an exceptionally hard and brilliant gemstone prized for its rarity and beauty. Composed of crystallized carbon, it is commonly used in engagement and wedding jewellery. Diamond is associated with eternal love, purity, and strength, also recognised as a healing and protective stone.

Diamonds come in a variety of colours, ranging from yellow to pink, and even blue and green, but coloured diamonds are exceptionally expensive. White diamonds remain the most popular. Diamond rings are a classic and elegant choice for special occasions.

“Mange doigt” ring, Capture-moi collection by Akillis © Bérengère Treussard 2017

May – Emerald

Emerald is a green gemstone highly valued for its vibrant colour and beauty. Composed of aluminium silicate and beryllium, emerald is often linked to growth, fertility, and vitality. It is also considered a healing and protective stone, used to enhance intuition and promote mental clarity.

This gemstone is admired for its vivid green hue and its significance of renewal, love, and luck. In jewellery, emerald is often used to create luxurious and rare pieces, as beautiful emeralds become increasingly rare and expensive. Emerald earrings are also highly popular, adding a touch of glamour to any attire.

Colombian emerald ring by Fabio Salini © Bérengère Treussard 2018

June – Pearl or Alexandrite

In contrast to other birthstones, pearls are of organic origin, produced by molluscs. Often associated with innocence, purity, and love, they are used in a variety of jewellery pieces, including earrings, bracelets, and necklaces. Pearl jewellery is timeless and suitable for all occasions, whether formal or casual.

Three pearl and gold rings by Anaïs Rheiner © Bérengère Treussard

Alexandrite is a rare and precious stone known for its unique colour-changing phenomenon. It shifts in colour depending on the light source, transitioning from emerald green in daylight to ruby red under artificial light. A variety of chrysoberyl, alexandrite is highly coveted by collectors and gem enthusiasts for its rarity and beauty.

Eternal Pear alexandrite ring by Rubeus Milano © Rubeus Milano

July – Ruby

Ruby is an extremely precious gemstone highly valued for its intense red colour. A variety of corundum (like sapphire), it is a hard and durable mineral. Rubies are often faceted to enhance their colour and brilliance, making them highly sought after in high-quality jewellery. They are considered a symbol of passion, strength, and power.

David Morris ruby ring © Bérengère Treussard 2019

August – Peridot

Peridot is a gemstone with a vibrant and fresh green hue, primarily composed of iron and magnesium silicate. Valued for its lively green colour, peridot symbolizes growth, prosperity, and happiness. In jewellery, peridot is often used to craft light and vibrant pieces, including earrings and bracelets. Its natural brilliance makes it a popular choice for summer jewellery.

Chanel “Les Blés” peridot ring © Bérengère Treussard 2016

September – Sapphire

Sapphire is a popular gemstone cherished for its deep and intense blue colour. It belongs to the corundum family, akin to ruby. However, unlike rubies, sapphires can be found in a variety of colours, including pink, yellow, green, and purple. Sapphires are considered protective stones and are often worn as talismans.

Pink and orange sapphire ring by Hélène Courtaigne Delalande © Bérengère Treussard 2019

October – Opal

Opal is a unique gemstone appreciated for its shimmering and iridescent colours. Composed of hydrated silica, it is often found in shades of white, pink, blue, and green. Regarded as a healing and protective stone, opal is associated with creativity and passion. This gem is admired for its unique beauty and colourful reflections. Opals are frequently used to create distinctive and artistic pieces, such as rings and earrings. Opal is a versatile stone that can add a touch of mystery and magic to your jewellery collection.

Australian opal ring by David Morris © Bérengère Treussard

November – Topaz or Citrine

Topaz comes in a variety of colours, ranging from pale yellow to deep blue. Composed of aluminium fluoride and fluorosilicate, it is often associated with wisdom, mental clarity, and inner strength. It is also considered a healing stone, bringing calmness and balance. In jewellery, topaz is frequently used to create bright and elegant pieces, such as rings and bracelets. Topaz earrings add a touch of sophistication and charm to any attire.

Imperial topaz by Hélène Courtaigne Delalande © Bérengère Treussard

Citrine is known for its golden yellow colour and belongs to the quartz family, like amethyst. Its vibrant hue being associated with solar energy, it is believed to bring joy, vitality, and optimism, repelling negative energies and purifying the environment. It has been widely used in jewellery, and some designers still use it to radiate life.

Isabelle Langlois ring © Bérengère Treussard

December – Tanzanite or Turquoise

Tanzanite is a variety of zoisite, with aluminium and calcium silicate as its main components. Renowned for its deep blue-purple colour, unique to this gemstone, tanzanite exhibits perfect cleavage gemmologically, allowing it to split easily along crystalline planes. With a hardness of 6.5 to 7 on the Mohs scale, it is relatively resistant to scratches. This gemstone is commonly associated with transformation, spirituality, and healing. In jewellery, tanzanite is often used to craft refined and elegant pieces, such as rings and necklaces. Tanzanite earrings add a touch of mystery and sophistication to your look.

Akillis tanzanite ring © Bérengère Treussard

Turquoise is a precious stone valued for its distinctive blue-green colour, formed by the presence of copper and aluminium in rock formations. Often used in jewellery creation, turquoise is considered a stone of protection and luck, associated with serenity and peace.

Isabelle Langlois “Pétale” pendant with turquoise and semiprecious stones © BérengèreTreussard 2017

Every birthstone carries its unique meaning and properties. When selecting a piece of jewellery with your birthstone, you can express your individuality and personal connection with your birth month. Whether you opt for a ring, bracelet, earring, or any other accessory, birthstones remain a timeless and meaningful choice to enhance your collection.