Secure site — 256‑bit SSL encryption Verified exporter · Lusaka, Zambia
WhatsApp: +919 11 684 9443 agarwalshashank874@gmail.com
About Dia Star Gemstones

A family trading house built on the gem belt of Zambia.

Dia Star Gemstones Ltd. was started with a simple idea: buy rough stones close to where they're found, grade them honestly, and sell them directly to the people who cut and trade them.

A colourful display of rough gemstones
Our Story

Twenty‑five years in rough stone.

Dia Star Gemstones Ltd. was registered in Zambia in 2000 to deal in precious and semi‑precious rough gemstones. What began as a small parcel‑trading desk in Lusaka has grown into a steady supply line for tourmaline, emerald, amethyst, garnet, citrine, topaz, aquamarine and crystal quartz.

We've kept the business deliberately straightforward. We don't cut, polish or manufacture — we buy rough material, sort and grade it ourselves, and sell it on to the dealers, cutters and manufacturers who do. That focus is what lets us answer questions about a parcel quickly and accurately.

Today the company continues to add new stone lines as reliable supply allows, while keeping the same direct, person‑to‑person way of doing business it started with.

Rough gemstones held in a hand
How We Work

From rough stone to ready shipment.

01

Source

Rough stone is bought directly from licensed local diggers and trading contacts across Zambia's gem‑producing regions.

02

Sort & Grade

Every parcel is hand‑sorted in our Lusaka office by colour, clarity and size, and graded into commercial, cutting or specimen lots.

03

Quote

We send buyers an honest description of the parcel along with weight, grade and price — no surprises on arrival.

04

Export

Stones are packed and shipped with the export documentation required for international gemstone trade.

Meet the Team

Run by people who know the stones.

Vinod Agarwal, Managing Director
Managing Director

Vinod Agarwal

Vinod has led Dia Star Gemstones Ltd. since its founding, overseeing sourcing, grading and every export shipment personally. Buyers dealing with the company correspond with him directly.

sales@diastargemstones.com

Director

Shashank Agarwal

Son of Managing Director Vinod Agarwal, Shashank works alongside the family business helping oversee day‑to‑day operations and buyer relationships.

Director

Tanishq Agarwal

Also a son of Vinod Agarwal, Tanishq is part of the next generation carrying the family's gemstone trading business forward.

Want to know more about how we grade our stones?

Ask us directly — we're happy to walk through any parcel before you commit.

Contact Us