Artificial Intelligence (AI) says:

Green zircon is a rare and sought-after gemstone, and its value can vary significantly based on factors such as size, color saturation, clarity, and overall quality. For larger stones, such as a 16-carat green zircon, pricing information is limited due to their rarity. However, available data suggests that high-quality zircons in the 7 to 10-carat range can command prices between $2,000 to $5,000 per carat. Extrapolating from this, a top-quality 16-carat green zircon could potentially be valued between $32,000 and $80,000.​

It's important to note that these figures are general estimates, and the actual value can vary based on the specific characteristics of the gemstone.

Green Zircon: Detailed Description

Color

Green zircon exhibits a range of green hues, from soft minty green to vibrant forest green or even deep olive tones. The most prized examples have a pure, saturated green with high brilliance and no brown or gray undertones. The green color may be natural, but in many cases, it results from heat treatment applied to brown or yellow zircons.

Clarity & Transparency

High-quality green zircon is typically eye-clean, meaning it has no visible inclusions to the naked eye. Under magnification, minor inclusions like needle-like crystals or feather-like patterns may be seen, but they rarely affect the stone’s beauty or durability.

Zircon is transparent to translucent, and in its best form, it displays remarkable internal clarity — allowing light to pass through cleanly and contribute to its intense sparkle.

Brilliance and Fire

One of zircon's most celebrated qualities is its high refractive index (1.92–1.98), which gives it exceptional brilliance and fire — almost diamond-like in sparkle. This optical property, combined with strong dispersion, causes flashes of rainbow colors (called “fire”) when the stone is viewed under light.

Some green zircons may also display a double image of their facets when viewed from above — this is due to strong birefringence, a trait that distinguishes zircon from synthetic substitutes like cubic zirconia.

Cut

Green zircon is usually faceted in shapes that enhance its brilliance, such as:

• Oval

• Cushion

• Round brilliant

• Emerald cut

Well-cut stones exhibit deep, symmetrical faceting that maximizes sparkle and color play. Because zircon is brittle, cutters must carefully avoid thin edges that could chip.

Size and Weight

Zircon is relatively dense, with a specific gravity around 4.6, so it feels heavier than most gems of similar size. A 16-carat zircon, for example, may appear smaller than a diamond or sapphire of the same carat weight but will feel weighty in hand.

Large, well-cut green zircons over 10 carats are considered rare, and gems in the 15–20 carat range are especially collectible and valuable.

Gemological Properties

• Hardness: 6–7.5 on the Mohs scale (suitable for occasional wear but needs protection from knocks and scratches)

• Refractive Index: 1.92–1.98 (high brilliance)

• Birefringence: Strong (double refraction visible)

• Luster: Adamantine to vitreous (brilliant, diamond-like shine)

• Specific Gravity: ~4.6

• Crystal System: Tetragonal

Origin

Zircon is found in several locations worldwide, with green varieties commonly mined in:

• Sri Lanka

• Myanmar (Burma)

• Cambodia

• Tanzania

• Australia

Uses

Due to its brilliance and color, green zircon is cut into fine gemstones for use in:

• Rings

• Earrings

• Pendants

• Collector displays

Its fiery sparkle and rich green hue make it a beautiful and more affordable alternative to green diamonds, emeralds, or tsavorite garnets.

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