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Choose a

Mined Diamond
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Choose a

Setting
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Complete

Ring
Mined Diamonds
LUMOS by ZCOVA
Lab Diamonds
Shape:
Color:
D E F G H I J
Clarity:
FL IF VVS1 VVS2 VS1 VS2 SI1 SI2
Symmetry:
Excellent Very Good Good Fair
Cut:
Excellent Very Good Good Fair None
Polish:
Excellent Very Good Good Fair
Fluorescence:
None Faint Medium Strong Very Strong
Carat:
Price:

Marquise Diamond Rings for Engagement & Wedding

100% Earth-mined diamonds in your choice of shape, cut, colour, carat & clarity. All mined diamonds come with GIA certificates including loose diamonds or set in diamond rings and jewellery. Get free expert recommendations from our Curators for GIA & GemEx dual-certified diamonds!



LUMOS diamonds are a collection of mined diamonds curated for their superior quality and brilliance, graded by GIA and GemEx. ZCOVA is the only online diamond brand in Malaysia and Singapore to guarantee brilliant diamonds with dual certificates from GIA & GemEx.

Certified diamonds have been graded by an independent laboratory such as GIA to determine the quality based on the stone’s carat, colour, clarity, cut and more. It is recommended that you purchase certified diamonds with a diamond certification, also known as diamond grading report so you’ll know exactly what you’re purchasing.

GemEx is the worldwide leader in the certification of diamond brilliance, fire and sparkle, which measures a diamond’s beauty. GemEx uses advanced imaging and lighting technology to analyze the light performance of diamonds.

GIA (Gemological Institute of America) is the world’s leading independent gem and jewelry educational organization that grades diamonds based on the 4Cs which are carat, colour, clarity and cut.

LUMOS by ZCOVA certified loose diamonds are currently available in round cuts only.

Yes, you can! Speak to our GIA graduate gemologist to choose your very own LUMOS diamond.