A verified and reliable source of natural coloured stones is the basis of the jewellery industry. It means time saving, flawless quality of products and competitive prices. Our understanding of the market comes from the experience we have gathered in Asia.

Through permanent cooperation with mines, trade and processing centres of raw materials in Asia as well as our network of brokers who monitor available offers 24/7, we process various orders for precious stones as well as rare and exotic specimens of such stones as:

  • Ruby from Myanmar (Burma), Thailand and Mozambique,
  • Sapphire from Ceylon, Thailand, Cambodia and Madagascar,
  • Emerald from Zambia, Colombia, Afghanistan, Pakistan and Ethiopia,

  • Amethyst, Citrine and Topaz from Brazil and the USA,
  • Opal from Ethiopia and Australia,
  • Burmite from Myanmar (Burma).

Our greatest asset is direct access to raw material deposits and grindery, where every stone is subjected to precise manual or computer calibration. Our tolerance is in the range of +/- 0.2 mm, which guarantees a perfect fit of stones to the produced jewellery on a mass scale.

Available sizes and cuts

HARDLEO offers natural coloured stones in the most popular cuts and calibrated sizes. Wholesale customers are offered the opportunity to have a custom cut prepared according to their own expectations.

ShapeSize (mm)
ROUND (simple and diamond cut) 1.00, 1.25, 1.50, 1.75, 2.00, 2.50, 3.00, 3.50, 4.00, 4.50, 5.00, 6.00, 7.00, 8.00, 9.00 mm, (other sizes on request);
OVAL 5.00 x 3.00, 5.00 x 4.00, 6.00 x 4.00, 6.00 x 5.00, 7.00 x 5.00, 7.00 x 6.00, 8.00 x 6.00, 9.00 x 7.00, 10.00 x 8.00, 12.00 x 10.00, 14.00 x 10.00, 14.00 x 12.00, (other sizes on request);
PEAR (drop, tear shape) 5.00 x 3.00, 5.00 x 4.00, 6.00 x 4.00, 6.00 x 5.00, 7.00 x 5.00, 7.00 x 6.00, 8.00 x 6.00, 9.00 x 7.00, 10.00 x 8.00, 12.00 x 10.00, 14.00 x 10.00, 14.00 x 12.00, (other sizes on request);
SQUARE (simple and princess cut) 1.00 x 1.00, 1.25 x 1.25, 1.50 x 1.50, 1.75 x 1.75, 2.00 x 2.00, 2.50 x 2.50, 3.00 x 3.00, 3.50 x 3.50, 4.00 x 4.00, 4.50 x 4.50, 5.00 x 5.00, 6.00 x 6.00, 7.00 x 7.00, 8.00 x 8.00, 9.00 x 9.00 mm, (other sizes on request);
RECTANGLE (baguette) 5.00 x 3.00, 5.00 x 4.00, 6.00 x 4.00, 6.00 x 5.00, 7.00 x 5.00, 7.00 x 6.00, 8.00 x 6.00, 9.00 x 7.00, 10.00 x 8.00, 12.00 x 10.00, 14.00 x 10.00, 14.00 x 12.00, (other sizes on request);
OCTAGON (rectangle base, emerald cut) 5.00 x 3.00, 5.00 x 4.00, 6.00 x 4.00, 6.00 x 5.00, 7.00 x 5.00, 7.00 x 6.00, 8.00 x 6.00, 9.00 x 7.00, 10.00 x 8.00, 12.00 x 10.00, 14.00 x 10.00, 14.00 x 12.00, (other sizes on request);
OCTAGON (square base) 3.00 x 3.00, 3.50 x 3.50, 4.00 x 4.00, 4.50 x 4.50, 5.00 x 5.00, 6.00 x 6.00, 7.00 x 7.00, 8.00 x 8.00, 9.00 x 9.00 mm, (other sizes on request);
CUSHION (square base and rounded corners) 1.00 x 1.00, 1.25 x 1.25, 1.50 x 1.50, 1.75 x 1.75, 2.00 x 2.00, 2.50 x 2.50, 3.00 x 3.00, 3.50 x 3.50, 4.00 x 4.00, 4.50 x 4.50, 5.00 x 5.00, 6.00 x 6.00, 7.00 x 7.00, 8.00 x 8.00, 9.00 x 9.00 mm, (other sizes on request);
CUSHION (rectangle base and rounded corners) 5.00 x 3.00, 6.00 x 4.00, 7.00 x 5.00, 8.00 x 6.00, 9.00 x 7.00, 10.00 x 8.00, 12.00 x 10.00, 14.00 x 10.00, 14.00 x 12.00, (other sizes on request);
TRIANGLE (trillion) 3.00 x 3.00, 3.50 x 3.50, 4.00 x 4.00, 4.50 x 4.50, 5.00 x 5.00, 6.00 x 6.00, 7.00 x 7.00, 8.00 x 8.00, 9.00 x 9.00 mm, (other sizes on request);
MARQUISE 5.00 x 3.00, 6.00 x 4.00, 7.00 x 5.00, 8.00 x 6.00, 9.00 x 7.00, 10.00 x 8.00, 12.00 x 10.00, 14.00 x 10.00, 14.00 x 12.00, (other sizes on request);
HEART 3.00 x 3.00, 3.50 x 3.50, 4.00 x 4.00, 4.50 x 4.50, 5.00 x 5.00, 6.00 x 6.00, 7.00 x 7.00, 8.00 x 8.00, 9.00 x 9.00 mm, (other sizes on request);

Certyfication

We cooperate with the majority of renowned gemmological laboratories in the world that certify both precious and decorative stones.

In Poland, we cooperate with scientific centres as well as certified gemmologists and experts holding diplomas of such centres as: HRD (Diamond High Council), IGI (International Gemmological Institute), GIA (The Gemological Institute of America) or DGemG (German Gemmological Association).