Lisbon Gem Exchange

04/02/2026

From the storied gemstone landscapes of Afghanistan comes this impressive 20 carats natural bicolour tourmaline — a gemstone where scale meets balance, and contrast becomes composure. Its elongated cushion cut and generous proportions allow two tones to coexist with clarity and authority, revealing a presence that is both powerful and refined.

✨ Key Features:
🌈 Colour: Bicolour – a natural dialogue of hues, vivid yet controlled
⚖️ Weight: 20 carats – bold presence with elegant restraint
📏 Dimensions: 22 × 13 × 8 mm – striking proportions for statement high jewellery
🪚 Cut: Cushion – crafted to enhance depth, structure, and colour expression
🔍 Clarity: Loupe clean – flawless transparency
🧪 Treatment: No heat, no treatment – 100% natural purity
🌍 Origin: Afghanistan – home to some of the world’s most distinctive bicolour tourmalines

A gemstone of commanding scale and timeless refinement — where duality becomes design and colour finds its balance. Destined to anchor a bespoke high-jewellery creation defined by precision, individuality, and enduring elegance.

DM us to enquire about availability or follow: https://tinyurl.com/5ets7z7e

28/01/2026

From the storied mountains of Afghanistan comes this refined 6.76 carat natural bluish-green tourmaline, a gemstone where calm depth meets quiet luminosity. Its balanced proportions and loupe-clean clarity allow colour and light to unfold with precision, revealing a presence that is composed, modern, and enduring.

✨ Key Features:
🌊 Colour: Bluish-Green – layered, fluid, and naturally elegant
⚖️ Weight: 6.76 carats – refined presence with measured strength
📏 Dimensions: 11 × 10 × 9 mm – harmonious proportions for bespoke high jewellery
🪚 Cut: Precision-cut – enhancing depth and colour balance
🔍 Clarity: Loupe clean – flawless transparency
🧪 Treatment: No heat, no treatment – 100% natural purity
🌍 Origin: Afghanistan – renowned for producing exceptional green-blue tourmalines

A gemstone of quiet authority and timeless sophistication — where colour rests, light settles, and elegance speaks without excess. Destined for a bespoke high-jewellery creation defined by balance, restraint, and enduring beauty.

DM us to enquire about availability or follow: https://tinyurl.com/46p7znct

21/01/2026

Rare Luxury.

A collector-grade 13.70 ct natural Afghan tourmaline, precision cut to reveal depth, balance, and controlled brilliance.
Untreated, exceptionally clean, and curated with rigorous standards of provenance.

Available for private placement.
Professional enquiries only.

👉 View detailed specifications: https://tinyurl.com/4dhn9y2s

19/01/2026

From the storied mountains of Afghanistan comes this 7.15 carat natural bluish-green tourmaline, a gemstone where depth meets luminosity, and colour moves like water in slow motion. With its perfect cushion cut, loupe-clean clarity, and harmonious proportions, it radiates sophistication, balance, and refined brilliance.

✨ Key Features:
🌊 Colour: Bluish-Green – rich, layered, and elegantly vibrant
⚖️ Weight: 7.15 carats – refined presence with commanding light
📏 Dimensions: 11.60 × 9.18 × 7.70 mm – ideal proportions for bespoke high jewellery
🪚 Cut: Cushion – crafted to enhance depth, fire, and colour saturation
🔍 Clarity: Loupe clean – flawless transparency
🧪 Treatment: No heat, no treatment – 100% natural purity
🌍 Origin: Afghanistan – celebrated for producing some of the world’s most captivating green-blue tourmalines

A gemstone of fluid elegance and timeless resonance — where colour becomes a quiet force and light finds a deeper, steadier voice. Destined to crown a high jewellery creation that speaks of sophistication, individuality, and enduring beauty.

Buy now! DM us or follow: https://tinyurl.com/53v52jfa

15/01/2026

In 2026, coloured gemstones are no longer a trend. They are the backbone of high jewellery.

From record emerald and ruby auction results to the rise of mint, seafoam, and teal tones, the gemstone market is undergoing a structural shift. Scarcity, provenance, and transparent sourcing are now shaping what designers, collectors, and professional buyers truly value.

We’ve published an in-depth analysis on the coloured gemstone trends that will define 2026 - grounded in market data, auction performance, and real industry signals.

🔗 Read the full article here: https://tinyurl.com/28tn5cn5

In 2026, coloured gemstones are no longer a seasonal alternative to diamonds. They have become a strategic pillar of the luxury jewellery market, driven by scarcity, cultural shifts, and a growing demand for assets that combine aesthetic power with defensible value. What is emerging is not a single....

12/01/2026

From the renowned Kunar mine, in Afghanistan, comes this exceptional 12.57 carat natural bicolour tourmaline - a gemstone shaped by contrast and balance at its very source. Its harmonious proportions and refined clarity allow two tones to coexist with precision, revealing a stone of character, depth, and quiet authority.

✨ Key Features:
🌈 Colour: Bicolour – a natural interplay of hues, vivid yet composed
⚖️ Weight: 12.57 carats – commanding presence with refined equilibrium
📏 Dimensions: 13.55 × 11.50 × 9.91 mm – ideal scale for bespoke high jewellery
🪚 Cut: Precision-cut – enhancing depth, structure, and colour dialogue
🔍 Clarity: Clean – clear transparency and natural brilliance
🧪 Treatment: No heat, no treatment – 100% natural purity
🌍 Origin: Kunar mine, Afghanistan – one of the most respected sources of fine tourmalines

A gemstone of authentic contrast and geological integrity — where origin matters, colour speaks, and balance becomes design. Destined to anchor a high-jewellery creation defined by individuality, restraint, and enduring sophistication.

Buy now! DM us or follow: https://tinyurl.com/5b46kjhn

07/01/2026

From the legendary mines of Afghanistan comes this extraordinary 20.40 carat natural watermelon tourmaline — a gemstone that celebrates nature’s artistry in vibrant harmony. Its perfect cushion cut reveals a mesmerising fusion of pink and green, a delicate balance between warmth and freshness, vitality and grace.

✨ Key Features:
🍉 Colour: Watermelon – a natural gradient of pink and green in perfect balance
⚖️ Weight: 20.40 carats – bold presence, refined brilliance
📏 Dimensions: 18.00 x 13.42 x 10.22 mm – impressive scale for statement high jewellery
🪚 Cut: Cushion – crafted to enhance colour depth and radiance
🔍 Clarity: Best eye clean – exceptional transparency with vivid colour zoning
🧪 Treatment: No heat, no treatment – 100% natural purity
🌍 Origin: Afghanistan – world-renowned for its magnificent tourmalines

A gemstone of breathtaking vibrancy and poetic contrast — where the meeting of colours becomes an ode to balance and beauty. Destined to crown a high jewellery creation that embodies rarity, emotion, and timeless allure.

Buy now! DM us or follow: https://tinyurl.com/2pwsxsmz

05/01/2026

From the serene mountains of Afghanistan comes this refined 8.23 carat natural mint-green tourmaline - a gemstone defined by balance, clarity, and understated elegance. Its perfect cushion cut and near-square proportions allow light to unfold evenly, revealing a freshness that feels calm, modern, and enduring.

✨ Key Features:
🌿 Colour: Mint Green – crisp, luminous, and naturally sophisticated
⚖️ Weight: 8.23 carats – poised presence with refined strength
📏 Dimensions: 11.2 × 11.2 × 10.0 mm – bold, symmetrical proportions
🪚 Cut: Cushion – crafted to enhance depth, symmetry, and light flow
🔍 Clarity: Loupe clean – flawless transparency
🧪 Treatment: No heat, no treatment – 100% natural purity
🌍 Origin: Afghanistan – renowned for producing exceptional green tourmalines

A gemstone of serene vitality and quiet precision — where freshness becomes form and light settles into balance. Destined to anchor a bespoke high-jewellery creation defined by purity, restraint, and timeless sophistication.

Buy now! DM us or follow: https://tinyurl.com/4zs53hp8

30/12/2025

What a year for Lisbon Gem Exchange.

Two journeys to Afghanistan.
27 gemstones placed with clients around the world.
Stronger partnerships, better standards, and a deeper commitment to ethical, transparent sourcing.

Every stone we sold carried a story — and this year taught us that growing with integrity matters more than growing fast.

We’ve put our reflections, lessons, and achievements into a full year-in-review article on our blog.

👉 Read the full story here: https://tinyurl.com/yw5acdm7

29/12/2025

From the serene mountains of Afghanistan comes this remarkable 12.75 carat natural seafoam tourmaline, a gemstone where balance, light, and colour converge with quiet authority. Its perfect cushion cut, generous depth, and eye-clean clarity allow a soft yet powerful luminosity to emerge, evoking freshness, harmony, and refined sophistication.

✨ Key Features:
🌊 Colour: Seafoam – luminous, airy, and exquisitely balanced
⚖️ Weight: 12.75 carats – commanding presence with serene elegance
📏 Dimensions: 13 × 13 × 11 mm – bold, symmetrical proportions for high jewellery
🪚 Cut: Cushion – crafted to enhance depth, structure, and light flow
🔍 Clarity: Eye clean – radiant transparency with natural vitality
🧪 Treatment: No heat, no treatment – 100% natural purity
🌍 Origin: Afghanistan – renowned for producing the world’s most captivating seafoam tourmalines

A gemstone of poised stillness and timeless refinement — where colour breathes softly and light finds perfect balance. Destined to anchor a bespoke high-jewellery creation defined by harmony, purity, and enduring elegance.

Buy now! DM us or follow: https://tinyurl.com/ya27suap

22/12/2025

From the legendary mines of Afghanistan comes this exceptional 12.71 carat top-quality natural bluish-green tourmaline — a gemstone where intensity meets balance, and colour unfolds with quiet authority. Its generous proportions and eye-clean clarity allow light to circulate freely, revealing depth, saturation, and refined brilliance.

✨ Key Features:
🌊 Colour: Bluish-Green – rich, layered, and profoundly elegant
⚖️ Weight: 12.71 carats – commanding presence with refined harmony
📏 Dimensions: 14.55 × 11.78 × 9.52 mm – ideal scale for bespoke high jewellery
🪚 Cut: Precision-cut – enhancing depth, structure, and light performance
🔍 Clarity: Eye clean – luminous transparency with natural vitality
🧪 Treatment: No heat, no treatment – 100% natural purity
🌍 Origin: Afghanistan – home to some of the world’s finest bluish-green tourmalines

A gemstone of rare gravitas and timeless sophistication — where colour gains depth and elegance becomes instinctive. Destined to anchor a high-jewellery creation that speaks of strength, balance, and enduring beauty.

Buy now! DM us or follow: https://tinyurl.com/53p5bf5y

16/12/2025

Afghanistan is once again at the centre of global attention, and this matters far beyond politics. Border tensions, regional power shifts and tightening sanctions are quietly reshaping how Afghan gemstones move, who can access them and why they are becoming rarer.

In our latest blog post, we explore how geopolitics is redefining the value and future of Afghan stones.

Read it all here:

Afghanistan has re-entered a phase of intensified geopolitical visibility. Border tensions, shifting regional alliances, recalibrated sanctions frameworks and heightened security concerns are converging into a complex landscape whose effects reach well beyond diplomacy and security. For the coloured...