About us

Our Story

Double H White Leaf was founded with a clear vision

to bridge Sri Lanka’s centuries-old gem industry with the modern world of fine jewellery.
Coming directly from the gemstone industry, our founders bring first-hand knowledge of
sourcing, grading, and selecting exceptional-quality stones. This deep understanding allows
us to move beyond trading gems — into designing and manufacturing fine jewellery that
highlights the true brilliance of natural sapphires.
Each GLEMINI creation is thoughtfully designed to honour the stone it carries.

From Sri Lanka to the world !

To expand our global presence and serve international customers with confidence, Terrene
Group Pty Ltd
was incorporated in Australia.

Through Terrene Group Pty Ltd, we proudly offer:

Certified Ceylon sapphires

Fine jewellery crafted with precision and integrity

International sales supported by professional governance and compliance

This structure allows us to combine Sri Lankan gem expertise with Australian business
standards delivering trust, transparency, and excellence worldwide

Our Story

Our Commitment to Ethical Sourcing

We work closely with small-scale gem miners and suppliers in Sri Lanka, helping them
connect with the global jewellery market.
By doing so, we:

Every sapphire we sell is natural and comes with recognized Gemological Certification,
giving our customers complete confidence in authenticity and quality.

Our

Managing Partners

Gimhan Danushka Hettiarachchi

Geeshan Madushanka Hettiarachchi

Bring Your Dream Jewellery to Life

Share your inspiration, sketches or ideas — our master craftsmen will transform them into timeless elegance.
Select your currency
LKR Sri Lankan rupee