Choose a


Choose a



Type :
Shape :
Carat :
Treatment :
Untreated Treated
Intensity :
Dark Deep Vivid Intense Medium Intense Light
Clarity :
EC1 EC2 VI1 VI2 I1 I2
Origin :

Certified Gemstone Jewellery - Design your dream jewellery

Browse our range of certified loose gemstones; choose your ideal colour, shape and grade from Asia’s biggest virtual gemstone inventory. Free customisation into gemstone rings, necklaces, bracelets, earrings or your own unique gemstone jewellery.

Shop for loose ruby gemstones, green tourmaline, pink sapphire, pink tourmaline, emerald gemstones, green sapphires gemstones, alexandrite stones, spinel stones, tsavorite and other precious gemstones. Popular gemstone jewellery include blue sapphire rings, emerald rings, sapphire rings, yellow sapphire rings, pink sapphire rings, sapphire necklace, emerald pendant, and birthstone necklaces.

The price of gemstones can vary greatly depending on several factors, including their size, color, clarity, cut, and origin. Some gemstones can be less expensive than diamonds, while others can be more expensive.

Most gemstones are treated to improve their color or clarity. Naturally perfect gemstones are rare and expensive so heat treatment is very common and well accepted. It simply speeds up the process gemstones go through naturally and does not harm the stone.

Untreated gemstones are natural gemstones which have not been altered or enhanced in any way. They are in the same form as when extracted from the earth and are only polished before they are cut into the wanted shape.

Precious gems available at ZCOVA include rubies, emeralds, sapphires, fancy sapphires, alexandrite, spinel, tourmaline and tsavorite. They are available in numerous shapes, carat, colour intensities and clarity.

Yes, you can set these precious stones into gemstone engagement rings and wedding rings, gemstone bracelets, gemstone necklaces, gemstone earrings and gemstone pendants. Customise your own gemstone jewellery at ZCOVA’s online gemstone shop.

Gemstone shapes at ZCOVA include round, triangular, oval, heart-shaped, square, marquise, pear-shaped, cushion, baguette, and emerald.

Here’s a gemstone list according to your birth month:

  • January - Garnet
  • February - Amethyst
  • March - Aquamarine
  • April - Diamond
  • May - Emerald
  • June - Moonstone
  • July - Ruby
  • August - Spinel
  • September - Sapphire
  • October - Tourmaline
  • November - Citrine
  • December - Tanzanite