United States Turquoise | 2.85ct, Oval, Blue

• Turquoise is loved for its distinctive blue to blue-green colour and its long history in jewellery, ornament and cultural adornment.
• Arizona turquoise can have a beautiful clean blue colour, making it especially appealing for jewellery with a relaxed, earthy or bold coloured-gemstone character.
• Turquoise has a softer, more organic feel than faceted gemstones, which makes it ideal for designs where colour, texture and provenance matter.
• With a Mohs hardness of around 5–6, turquoise needs protective design and careful wear, especially in rings or pieces exposed to knocks.
• We assess turquoise individually for colour, stability, treatment information, cut and setting suitability so the design respects the nature of the stone.

Is turquoise suitable for an engagement ring?

Turquoise is generally not our first recommendation for a hard-wearing engagement ring. It is softer and more porous than many gemstones, and it can be affected by knocks, chemicals, oils and moisture. It can be used in rings when the design is protective and the wearer understands the care required.

What colour is turquoise?

Turquoise ranges from blue to blue-green, sometimes with natural matrix patterns. Clean blue stones can feel bright and graphic, while matrix-bearing stones often have a more earthy and organic character.

Is turquoise treated?

Turquoise is commonly stabilised or treated in the wider gem trade to improve durability, colour or polish. Treatment disclosure matters, and we describe treatment information where it is available.

How should turquoise jewellery be cared for?

Turquoise should be kept away from harsh chemicals, perfumes, lotions, ultrasonic cleaners, steam cleaners and prolonged moisture. Clean gently with a soft dry or slightly damp cloth, and avoid soaking the stone.

Turquoise sourcing is about colour, stability, treatment disclosure and provenance. Because turquoise is softer and more porous than many gemstones, individual assessment is especially important.

Our turquoise selection includes Arizona turquoise with appealing blue colour. Arizona turquoise has a long-standing reputation in jewellery and is valued for both colour and place.

Where treatment or stabilisation information is available, we disclose it. This is important because treatment can affect durability, care requirements and value.

For custom jewellery, we favour turquoise designs that protect the stone and suit the way the piece will be worn. The best result is a piece that celebrates turquoise’s colour while respecting its softer, more organic nature.