All Coloured Gemstones
The A.G coloured gemstone jewellery collection celebrates individuality and artistry across a refined range of fine jewellery, including rings, earrings, necklaces, bracelets, and bespoke pieces. Designed for those drawn to expressive colour and timeless design, each piece showcases exceptional gemstones in a variety of shapes, styles, and settings, blending contemporary elegance with enduring craftsmanship.
Our coloured gemstone jewellery features champagne diamonds, Ceylon and Australian sapphires, rubies, aquamarines, tourmalines, emeralds, and more, carefully selected for their character and brilliance. For those seeking something truly personal, our gemstone specialists and designers are available to create bespoke coloured gemstone jewellery, thoughtfully crafted with intention, precision, and refined detail.
Petit Gemstone Letter Necklace
A.G petit gemstone letter pendant necklace
Petit Gemstone Letter Necklace
A.G petit gemstone letter pendant necklace
Ruby Dome Huggies
A modern essential with sculptural appeal, these dome huggie earrings are crafted in yo...
Ruby Dome Huggies
A modern essential with sculptural appeal, these dome huggie earrings are crafted in yo...
W.15
A.G signature diamond baguette and blue sapphire women's wedding band.
W.15
A.G signature diamond baguette and blue sapphire women's wedding band.
Aquamarine Cluster Ring
A.G oval cut Aquamarine diamond cluster ring
Aquamarine Cluster Ring
A.G oval cut Aquamarine diamond cluster ring
Ceylon Sapphire Engagement Ring
A.G emerald cut Ceylon sapphire engagement ring
Ceylon Sapphire Engagement Ring
A.G emerald cut Ceylon sapphire engagement ring
Blue Sapphire and Diamond Cluster Band
A.G Blue Sapphire and Diamond Cluster Band
Blue Sapphire and Diamond Cluster Band
A.G Blue Sapphire and Diamond Cluster Band
Oval Ceylon Blue Sapphire Ring
A.G oval Ceylon blue sapphire and diamond halo dress ring.
Oval Ceylon Blue Sapphire Ring
A.G oval Ceylon blue sapphire and diamond halo dress ring.
Sapphire Art Deco Band
A contemporary nod to Art Deco geometry, this 18ct white gold ring showcases six baguet...
Sapphire Art Deco Band
A contemporary nod to Art Deco geometry, this 18ct white gold ring showcases six baguet...
Mint Tourmaline Ring
A.G oval mint tourmaline and diamond halo custom design dress ring.
Mint Tourmaline Ring
A.G oval mint tourmaline and diamond halo custom design dress ring.
Tourmaline Step Ring
A.G tourmaline and diamond step style ring
Tourmaline Step Ring
A.G tourmaline and diamond step style ring