Technical Specifications – Natural Emerald

• Gem Type / Mineral Species: Natural Emerald (variety of Beryl – Be3Al2Si6O18), colored primarily by chromium (Cr) and/or vanadium (V), consistent with Swat Valley material.

• Carat Weight: 3.19 ct

• Cut / Shape: Cushion cut – rectangular with rounded corners, faceted to optimize light return.

• Dimensions: 10.08 mm (length) × 7.74 mm (width) × 5.66 mm (depth) Length-to-width ratio: ≈1.30:1 (balanced proportions for cushion cut). Depth percentage: ≈73% (provides adequate pavilion depth for brilliance).

• Color: Vibrant spring green (medium to medium-dark tone, high saturation), typical of Swat Valley emeralds with strong, even green hue.

• Clarity: Transparent; very good luster (high surface reflection and internal brightness). Features slight natural inclusions (typical jardin: fractures, needles, fluid inclusions), which are characteristic of natural emeralds and contribute to uniqueness. Inclusions are minimal and do not significantly impact overall transparency.

• Origin: Pakistan – Swat Valley (likely Mingora or nearby areas). Swat emeralds commonly exhibit bright, saturated green color, good transparency in faceted form, and distinctive inclusions such as partially healed fissures and multi-phase fluids.

• Treatment / Enhancement: Minor oil treatment (clarity enhancement) – colorless oil introduced into surface-reaching fractures to improve apparent clarity and enhance color vibrancy/brilliance. This is a standard, temporary, and reversible process for emeralds.

• Certification: GSI (Gemological Science International) report no. 73054350108 – verifies natural origin, weight, measurements, color, minor oil treatment, and quality parameters.

• Optical Properties: Very good luster and brilliance; cushion cut enhances light performance from multiple angles. Refractive index and specific gravity align with standard emerald ranges (RI ≈1.57–1.59, SG ≈2.72).

• Additional Notes:

  • Ethically sourced (as stated in documentation).

  • Natural inclusions confirm authenticity and differentiate from synthetics or heavily treated material.

  • Suitable for jewelry use (e.g., center stone in rings, pendants, or earrings); 3+ ct size is in the upper-mid range for Swat emeralds.

Summary Assessment
This 3.19 ct Swat-origin cushion emerald displays transparent clarity with very good luster, vibrant spring green color, balanced proportions, and minor oil enhancement. It is fully certified and representative of high-quality Pakistani material, with natural character from slight inclusions.

For care: Avoid ultrasonic or steam cleaning due to the oil treatment; use warm soapy water and a soft brush for gentle cleaning. Re-oiling by a professional may be needed over time to maintain optimal appearance.

Emerald info:
The single greatest factor for an emerald's value is it's color. The emerald is examined and graded based on its hue, tone and saturation of color. These three elements will ultimately determine whether the emerald is AAA quality (highest) or C quality (lowest). While evaluating color is subjective and no standardization exists across the industry, color is graded AAA, AA, A, B, and C. Emeralds are green, but many may have undertones of yellow, blue and brown. The purer the green, the higher or better the color. Emerald color is evaluated by viewing the Gemstone face up, without magnification. It can be rocked and tilted to see the color from many angles. Ideally the hue will be green, without additional color undertones. The tone will be vivid and deep, not too dark or light. The saturation will be even and fluid throughout.

Emeralds are some of the most heavily included gemstones available. All emeralds will have tiny imperfections, known as inclusions, that may be visible without magnification. Emerald inclusions include clouds, needles, crystals, feathers, pinpoints and cavities. The inclusions occur naturally during the emerald growth process. There is no standardized grading scale for clarity in emeralds. They simply blend with color in the AAA rating scale.

Because inclusions are found in all emeralds, it is recommended not to worry too much about their visibility in higher qualities. The color is the dominant factor in determining the emerald quality. However, very large, heavily included emeralds will have color reduction as the color will be washed out by the inclusions. If this is the case, the quality grade of the emerald will be reduced.

Emerald clarity, like its color, is evaluated face up without magnification. The key is to see the clarity as a whole rather than concentrating on an individual inclusion. The most common inclusions are fissures or tiny fractures that look like wavy or random whitish lines inside the emerald.

Payments:
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Shipment:


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Return:
Any item may be returned for refund within 7 days of receipt (the date you receive the item through the shipper).
Item(s) must be returned in original condition. If an item is damaged it can not be refunded. Shipping or insurance cost will not be refunded.