Aquamarine

Aquamarine from Pakistan

Aquamarine is one of the most popular blue gemstones in the world, prized for its serene sky-blue to deep ocean-blue colour, exceptional transparency, and large crystal sizes. Pakistan’s Gilgit-Baltistan region sits within the Karakoram and Himalayan pegmatite belt, one of the most geologically prolific gemstone-producing zones on Earth. The high-altitude pegmatite veins (3,000-5,000 metres elevation) yield aquamarine crystals of outstanding clarity and colour, with Pakistan regularly producing some of the world’s largest gem-quality aquamarine crystals. The deposits in Skardu, Shigar Valley, Chumar Bakhoor, Nagar, and surrounding areas have been commercially productive since the 1970s.

Specifications

• Mineral: Beryl (Be₃Al₂Si₆O₁₈), aquamarine variety

• Colour Agent: Iron (Fe²⁺/Fe³⁺)

• Colour Range: Pale sky blue, medium blue, deep Santa Maria blue, greenish-blue

• Hardness (Mohs): 7.5-8

• Specific Gravity: 2.68-2.74

• Refractive Index: 1.567-1.590

• Crystal System: Hexagonal

• Lustre: Vitreous

• Transparency: Transparent to translucent

• Pleochroism: Weak to moderate (near-colourless to blue)

• Inclusions: Typically eye-clean in fine grades, rain-like tubes, two-phase inclusions

• Treatment: Available as untreated (natural colour) or heated (standard industry treatment to remove greenish tint)

• Origin Certification: Gemmological laboratory certificates available (GIA, Gubelin, SSEF, GRS)

Colour Grades

Pale Sky Blue
Light, delicate blue with excellent transparency. The most common colour grade and most affordable. Popular in fashion jewelry and silver settings where a fresh, icy blue is desired. Available in large, clean stones at accessible pricing.

Medium Blue
Balanced, saturated blue with strong colour presence. The sweet spot for fine jewelry use. Good balance of colour intensity, availability, and value. The most commercially demanded grade for gold and platinum jewelry.

Deep Blue (Santa Maria)
Intensely saturated, deep blue without greenish overtones. Named after the famous Santa Maria de Itabira deposit in Brazil. The most valuable aquamarine colour grade. Pakistani deep blues are comparable to top Brazilian Santa Maria material and command premium prices. Rare in sizes above 10 carats.

Greenish-Blue
Natural aquamarine with visible green secondary colour. Can be heated to remove the green tint and produce a purer blue. The most affordable rough grade for cutters who will heat-treat to improve colour. Also valued in its natural state by collectors who prefer untreated material.

Four Product Forms

Rough Aquamarine
As-mined crystals, broken pieces, and water-worn alluvial fragments. Pakistani aquamarine rough is known for producing exceptionally clean cutting material with high gem yields. Rough is sold by gram, carat, or per lot. Available in gem-quality (clean, well-coloured), commercial-quality (lighter colour or included), and specimen-quality (terminated crystals).

• Sizes: 1 gram to 5+ kg per piece

• Grades: Gem, commercial, specimen, mine-run lots

• Sorting: Colour-graded, clarity-sorted, or unsorted mine-run

• Large clean rough (100+ carats) is a Pakistani specialty

Faceted Aquamarine
Precision-cut gemstones with polished facets maximizing brilliance, colour saturation, and light return. Aquamarine takes an exceptional polish and produces brilliantly lively gemstones. The hexagonal crystal habit often yields elongated shapes (emerald cut, oval) with excellent proportions.

• Sizes: 0.5-100+ carats (large, clean faceted stones are a Pakistani specialty)

• Shapes: Emerald cut, oval, cushion, round, pear, trillion, briolette, fantasy cut

• Quality grades: AAA (top gem, Santa Maria blue), AA (fine medium blue), A (good sky blue), B (commercial pale blue)

• Calibrated sizes available for jewelry production

• Matched pairs and suites for earring and necklace production

Crystal Specimens
Complete, well-terminated hexagonal aquamarine crystals preserved in their natural crystal form for mineral collectors, museums, and display. Pakistani aquamarine crystals are famous for their size, clarity, and perfect hexagonal terminations. The crystals range from thumbnail specimens to massive museum pieces weighing several kilograms.

• Sizes: 10 g to 10+ kg per crystal

• Quality: Museum-grade (large, perfect termination, vivid colour), display-grade (good form and colour), cabinet-grade, miniature

• Transparency: Gem-transparent to translucent

• Best for: Mineral collectors, museum displays, luxury decor, corporate display

On Matrix
Aquamarine crystals still attached to their host rock, typically white feldspar, muscovite mica, quartz, or granite pegmatite matrix. Matrix specimens show the aquamarine in its natural geological context and are highly valued by mineral collectors. The blue-on-white contrast of aquamarine on feldspar/albite matrix is one of the most visually striking mineral specimen types.

• Sizes: 100 g to 20+ kg per specimen

• Crystal quality: Museum-grade (large crystal, contrasting matrix), display-grade, cabinet-grade

• Matrix types: Feldspar/albite (most common and desirable), muscovite mica, quartz, schorl tourmaline associations

• Multi-crystal specimens: Multiple aquamarine crystals on one matrix

• Best for: Mineral collectors, museum displays, luxury interior design, auction lots

Industrial Uses

• Fine jewelry: Faceted aquamarine is set in gold, platinum, and sterling silver jewelry. It is one of the most popular blue gemstones in the world and the March birthstone. Large, clean, vivid blue Pakistani aquamarines are a specialty product in the international gem market, with stones above 20 carats being a particular strength of this origin

• Designer and fashion jewelry: Aquamarine’s versatile blue colour, excellent durability (Mohs 7.5-8), and availability in large sizes make it ideal for statement rings, cocktail rings, pendants, and designer necklaces

• Gem cutting and lapidary: Pakistani aquamarine rough is purchased by gem cutters worldwide for its exceptional clarity and large cutting sizes. Fantasy cuts, designer cuts, and calibrated production runs are all well-suited to Pakistani material

• Bridal jewelry: Aquamarine is increasingly popular as a centre stone in engagement rings and bridal jewelry as an alternative to diamonds and sapphires, offering a large, vivid blue stone at a fraction of the cost

• Mineral collecting: Pakistani aquamarine crystals and matrix specimens are among the most sought-after mineral specimens in the world. Top-quality pieces from Skardu, Shigar, and Chumar Bakhoor regularly appear at major mineral shows (Tucson, Munich, Denver) and auction houses (Heritage Auctions, Bonhams, Christie’s)

• Investment: Large, fine-quality aquamarine gemstones (10+ carats, Santa Maria blue, untreated, certified) appreciate in value over time as top-quality material becomes scarcer

• Healing and metaphysical: Aquamarine is associated with the throat chakra, communication, and calming energy in crystal healing traditions

Quality Assurance

Each lot or individual stone can be accompanied by a gemmological laboratory report from internationally recognized laboratories (GIA, Gubelin, SSEF, GRS). Reports confirm natural beryl (aquamarine), Pakistan origin, colour grade, clarity, treatment status (untreated or heated), measurements, and carat weight. For premium stones, untreated status certification adds significant value. Pre-shipment photos, videos, and detailed descriptions are provided for buyer evaluation before purchase.