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Turquoise

Azure sky, robin’s egg blue – vivid shades of turquoise define the colour that’s named after this gem.

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Cabochon

This turquoise is cut in a cabochon: the most common shape.

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Robin’s egg

The preferred colour for turquoise is a pure sky blue.

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Matrix

Some buyers prefer the presence of matrix in fashioned turquoise.

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Aggregate

Turquoise is an aggregate of microscopic crystals that form a solid mass.

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Copper

The intense blue colour in this rough is due to the presence of copper.

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Veins

Veins of matrix in this turquoise are remnants of its surrounding rock.

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Tools

Buyer's Guide

Excellent-quality turquoise is sought after by designers around the world. Typically, turquoise is judged on three basic qualities - its colour, its texture, and the presence or absence of matrix.

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What to look for

Sky-blue Turquoise
Colour

The most prized turquoise colour is an even, intense, medium blue. But some consumers prefer a greenish blue, and some contemporary designers actively seek avocado and lime green turquoise. Turquoise ranges from blue to green. Generally pure saturated blue shades are the most valuable.

Turquoise with Dark Matrix
Clarity

Turquoise is semi-translucent to opaque, usually light to medium blue or greenish blue. It might have veins of matrix running through it (matrix is a remnant of its surrounding rock). Spiderweb turquoise contains fine seams of matrix that form attractive web-like patterns.

Turquoise in Sterling Silver
Cut

Turquoise is often fashioned as a cabochon. The dome shape sets off turquoise’s colour, texture, and any matrix beautifully. In addition, manufacturers and artisans fashion turquoise rough into beads for strand necklaces, and into small, flat pieces that are popular in jewellery inlays.

Various turquoise sizes
Carat Weight

 

Turquoise is available in a wide range of sizes, although large pieces of turquoise without any visible matrix are rare. All sizes are used in Native American jewellery. Large sizes have been popular for carvings. For any size, the quality and evenness of the colour is the overriding value factor.

 

Turquoise Quality Factors: The Comprehensive Guide

Tips & Advice

1. Buy from a jeweller you trust.

Turquoise is commonly treated to improve its stability and colour. If you are looking for turquoise that has not been treated in any way, make sure your jeweller has the gemological expertise and knowledge.

2. Protect turquoise from chemicals and cosmetics.

Natural turquoise can absorb things like cleaning products, perfume, or metal polish, which may affect its colour. Remove turquoise jewellery when cleaning and applying products to your skin and put your turquoise on after using cosmetics and lotion.

3. Turquoise might gradually darken as it’s worn.

Because most turquoise is porous, it can absorb skin oil. Beads and rings that touch the skin can gradually darken as they absorb natural skin oils.

4. Fine quality turquoise has long-lasting beauty.

The best quality turquoise is harder and more durable. Turquoise jewellery has been found that is thousands of years old and still bright and beautiful.