Turquoise (Firoza)

Turquoise Quality & Price

Turquoise quality depends on several interconnected factors — with origin and colour being the most critical. Here is a comprehensive guide:

Turquoise Quality — The Key Quality Factors

Origin & Mine — The Primary Price Driver

In Turquoise, origin is the single most important factor determining price — even more so than in most other gemstones. This is because Turquoise from different origins and even from different mines within the same country can be entirely different in colour, density, matrix, and quality. Many serious buyers seek stones from specific mines only — and are willing to pay a significant premium for confirmed mine-of-origin provenance. Nishapuri (Iranian) Turquoise commands the highest prices in the Indian market; Arizona Sleeping Beauty is highly sought after; Tibetan Turquoise is valued for its distinctive character and spiritual heritage.

Body Colour

The purest, most vibrant, even sky blue or robin's egg blue — with no greenish, grey, or dull secondary tones — is the most prized colour. The colour should be intense and saturated, not pale or washed-out. The finest Iranian Nishapuri stones display this ideal robin's egg blue most consistently. Any significant greenish tint (caused by iron content) reduces value — except in Tibetan Turquoise where a characteristic green-blue is expected and appreciated.

Matrix

As discussed above, matrix-free stones — with pure, uninterrupted colour across the entire surface — command the highest prices. Fine spider web matrix can add distinctive character and value in certain traditions. Heavy or irregular block matrix reduces value significantly. The finest Nishapuri Iranian Turquoise is typically matrix-free or has the most delicate, minimal veining.

Density & Hardness

Turquoise exists on a spectrum from very soft and porous (chalky) to very hard and dense (compact). The hardest, densest Turquoise — which takes the finest polish and maintains its colour and lustre over time — is the most valuable. Chalky, porous Turquoise is often stabilised (see Treatments section) to improve its appearance. Natural, untreated hard Turquoise that takes a high, waxy polish without any treatment is the most desirable for quality jewellery.

Surface Finish & Polish

A high-quality Turquoise should have a smooth, even, well-polished surface with a warm waxy lustre. The surface should be free from pits, roughness, or uneven areas. The finest Iranian Turquoise — particularly from Nishapur — is celebrated for its exceptional surface quality and smooth, lustrous finish that sets it apart from lower quality material.

Shape & Carat Weight

Turquoise is typically fashioned as cabochons — smooth, domed shapes without facets — in oval, round, pear, and freeform shapes. Well-proportioned, symmetrical cabochons with an even dome height command higher prices. Larger, clean, well-coloured Turquoise cabochons are significantly rarer and more valuable than smaller stones — and price increases with size. Carvings and beads are also popular forms, particularly for Tibetan Turquoise.

Turquoise Price in India — Origin & Quality Guide

Turquoise Treatments & Imitations — What Every Buyer Must Know

Turquoise is one of the most heavily treated and most commonly imitated gemstones in the world market. The widespread prevalence of treated, dyed, and synthetic Turquoise makes buyer education absolutely essential. Here is what every buyer must know:

Common Turquoise Treatments

• Very Widely Used: Stabilisation — Most Common Treatment
  Stabilisation is the most common treatment applied to Turquoise. Porous, chalky, or soft Turquoise — which is too fragile for jewellery use in its natural state — is impregnated with colourless resin or plastic under pressure to improve its hardness, durability, and colour. Stabilised Turquoise is technically natural Turquoise — but its colour, lustre, and hardness have been artificially enhanced. Stabilised Turquoise is significantly less valuable than natural, untreated hard Turquoise and is not suitable for buyers seeking genuine natural quality. Shubh Gems does not deal in stabilised Turquoise.
• Very Common — Strictly Avoid: Dyeing / Colour Enhancement
  Many lower quality, pale, or greenish Turquoise stones are dyed to deepen or alter their colour — often to simulate the vivid blue of Nishapuri Iranian Turquoise. Dyed Turquoise can look visually attractive initially but the colour is not stable — it fades or leaches over time, particularly with exposure to sweat, water, and sunlight. A simple test: rubbing with acetone or acetone-based nail polish remover on a cotton swab — if colour transfers, the stone is likely dyed.
• Common — Lower Quality: Wax Impregnation
  Wax or oil impregnation is applied to improve colour and lustre temporarily. This treatment is less stable than resin stabilisation and wears off over time. Wax-treated Turquoise is of lower quality and value than natural, untreated stone.
• Avoid Completely: Colour Coating / Film Coating
  Some very low quality material is coated with a coloured film or lacquer to simulate the appearance of Turquoise. This is purely cosmetic and wears off rapidly. Always purchase from a certified, reputed source with independent laboratory documentation.

Common Turquoise Imitations

• Most Common Imitation: Howlite & Magnesite — Dyed to Simulate Turquoise
  White Howlite and Magnesite — naturally white minerals with similar surface patterns — are dyed blue-green and widely sold as Turquoise, often at very low prices. These are the most common Turquoise imitations in the market, particularly in fashion jewellery and online sales. A simple test: natural Turquoise feels cool and slightly heavy; Howlite imitations may feel lighter and less dense.
• Avoid for Quality Buyers: Synthetic Turquoise
  Laboratory-created synthetic Turquoise — with identical chemical composition to natural Turquoise — is produced commercially and sold at very low prices. While chemically genuine, synthetic Turquoise has no natural origin and no collectible or healing value. Always insist on a certificate confirming natural origin.
• Easiest to Identify: Glass & Plastic Imitations
  Glass and plastic beads dyed turquoise blue are the most basic imitations. These can typically be identified by their perfectly uniform colour (no natural variation), excessive smoothness, and warmth to the touch (glass and plastic do not feel cool like genuine Turquoise).