Nano white grades: G3, G5, G7
Many sellers, especially in India, label nano white as G3, G5 or G7. A higher number is sold as a better grade and usually costs more. These grades are sellers' labels. We have not found a published standard that defines them.
What to check instead of a label
Whiteness
Compare samples from the same batch in daylight.
Surface
Look for pinholes, spots and waves under a low-angle light.
Thickness
Measure the slab at several points.
Cut edge
Test report
Ask for a report with a number, a lab and a date.
Standard
Ask which standard the slabs meet. Ours follow JC/T 872.
How we grade our slabs
Our export slabs are premium grade. We do not use G-number labels. Breakage or quality issues are our responsibility. Ask for samples to see the quality before you order.
Nano white priceGrade questions
Is G7 better than G5?
Sellers use G7 for a higher grade, but there is no common standard. Compare real samples.
What grade do you sell?
Our export slabs are premium grade. We do not use G-number labels.
Can I get samples?
Yes. Request samples and tell us the finish you need.