Gemmological Institute of Colombo - GIC GemLab

✨ Nature’s Magic Hidden Inside Gemstones ✨💎
Ever seen a gemstone glow like fire, reveal a floating star, or change color before your eyes? 👀
That’s the magic of gemstone phenomena — rare optical effects created by the way light dances within the gem’s natural structure.

From the celestial "Asterism" in Star Sapphires to the shifting "Play-of-Color" in Opals, these rare traits make every stone a unique masterpiece of nature.

✨ These extraordinary effects transform gemstones into living works of art.
Every shimmer tells a story. Every glow is a wonder of nature.

Check out our guide to some of the most stunning optical effects in the gem world! Which one is your favorite?
Which phenomenon fascinates you the most? Tell us below 👇

💎✨ GIC Gem Quiz Time! ✨💎
The Beryl family is home to some of the world’s most beautiful gemstones — Emerald, Aquamarine, Morganite, Heliodor, Goshenite and the rare Red Beryl. 👀
But can you guess the missing member of the Beryl family shown in the image? 🤔💎
Drop your answer in the comments below! ⬇️
Let’s see who the true gem enthusiasts are! 🔍✨

💎 Legendary Sapphire Alert 💎
✨ Blue Belle of Asia ✨
One of the most breathtaking sapphires ever discovered — and proudly from Sri Lanka 🇱🇰
🔹 Weight: 392.52 carats
🔹 Origin: Ratnapura (City of Gems)
🔹 Color: Deep Royal Blue
🔹 Type: Natural Sapphire
🔥 This gemstone is famous for its massive size + exceptional clarity — a rare combination in the gem world!
💰 Sold for $17.3 Million at Christie's auction

🌍 Known as one of the largest and finest blue sapphires in the world

💡 Did you know?
Sri Lanka produces some of the most valuable Sapphires globally — and the Blue Belle of Asia sapphire is a perfect example!
👇 Drop a 💙 if you love sapphires
📌 Follow for more gemstone knowledge

✨ 10,000 Strong – And Growing! ✨
From the bottom of our hearts, thank you for being part of the GIC journey. Reaching 10,000 followers is not just a milestone—it’s a reflection of the trust, support, and passion you share with us for gemstones. 💎
Every like, share, inquiry, and visit motivates us to continue delivering precision, innovation, and excellence in gem testing and certification.
At GIC Gem Lab, we remain committed to combining advanced technology with expert knowledge to serve you better—today and in the future.
Here’s to many more milestones together! ✨
💎 Your trust is our greatest value.

Love the colour… but know the difference 💎✨
You may find gemstones that beautifully match the rich red of a Ruby, the lush green of an Emerald, or the radiant glow of a Yellow Sapphire—there are stunning alternatives that capture the same visual charm.
But colour alone doesn’t define value.
The rarity, origin, and intrinsic qualities of precious gemstones make them truly irreplaceable.
Choose what suits your style—but understand what you’re wearing.
✨ At GIC, we help you see beyond the colour.

Discover the beauty of two worlds in one—bi-color gemstoneDiscover the beauty of two worlds in one—bi-color gemstone 🌈💎
From the golden-purple glow of Ametrine to the vibrant green-pink hues of Tourmaline, these rare gems showcase nature’s incredible artistry in a single stone. Each piece is a unique blend of colors, formed over millions of years beneath the earth—making every gemstone truly one of a kind.
Which color combination catches your eye the most? ✨

💎 One Gem, Many Faces ✨ Ever seen a gemstone change color right before your eyes?
Tanzanite is a true marvel—revealing shades of deep blue, violet, and even flashes of green depending on how the light hits it.

🔍 A rare beauty with a story to tell:
📍 Origin: Tanzania 🇹🇿
💎 Mineral: Zoisite
📊 Hardness: 6–7 on the Mohs scale
🎂 Birthstone: December
✨ Discover the magic behind this exotic gem in our latest guide—because some stones don’t just shine… they transform.

Attention Gem Buyers !

Seeing is believing …. Uncover the truth in the gemstones You intend to buy. KROMA™ photomicrography device reveals the inclusions & captures its color accurately, helping You with your buying decisions.

Minimise your risk of potentially losing thousands of dollars, by asking your seller to show You KROMA™ scans of the gemstone. It costs less that USD 3 per gemstone, and the videos are stored in the cloud for sharing.

And from Jun-2026, we will start to issue Gemstone Assessment Reports, analysed by our AI-model DeepGem™.

Visit our GemLUX® Xperience stores in Beruwela, Ratnapura & Colombo.