Wholesale Round Brilliant Cut Lab Grown Diamonds

Source wholesale round brilliant cut lab grown diamonds directly from the manufacturer. Ideal cut, D-F color, VVS-VS clarity. Request a bulk pricing quote today.

Wholesale Round Brilliant Cut Lab Grown Diamonds

Why Source Round Lab Diamonds from Us?

ID/EX Grading

Every single stone is strictly graded to meet Ideal or Excellent Cut, Excellent Polish, and Excellent Symmetry standards.

No Blue No Milk

Our technological control guarantees no blue nuance or milky appearance in our D-F colorless ranges.

Zero light leakage

Our round diamonds feature a standard 57-facet structure engineered for maximum light performance, exceptional fire, and zero light leakage.

Certified

All our round loose stones come with reputable IGI or GIA certifications, ensuring transparency and trust for your business.

Round Diamond Size & Weight Comparison Table

Carat WeightAverage Diameter (mm)Cut GradePolish/SymmetryFluorescence
0.30 – 0.49 ct4.3mm – 5.0mmIdeal / ExcellentExcellent / ExcellentNone
0.50 – 0.99 ct5.1mm – 6.5mmIdeal / ExcellentExcellent / ExcellentNone
1.00 – 1.49 ct6.5mm – 7.3mmIdeal / ExcellentExcellent / ExcellentNone
1.50 – 1.99 ct7.4mm – 8.0mmIdeal / ExcellentExcellent / ExcellentNone
2.00 – 2.99 ct8.1mm – 9.3mmIdeal / ExcellentExcellent / ExcellentNone
3.00 – 4.99 ct9.4mm – 11.0mmIdeal / ExcellentExcellent / ExcellentNone
5.00 – 100.00+ ct11.1mm – 14.0mm+Ideal / ExcellentExcellent / ExcellentNone
FAQ

FAQ About Wholesale Round Brilliant Cut Lab Grown Diamonds

Do you offer Ideal and 3EX cut grades for wholesale round lab diamonds?

Yes, over 95% of our bulk round lab-grown diamonds feature a Triple Excellent (3EX) rating for cut, polish, and symmetry, with many meeting Hearts & Arrows (H&A) or Ideal cut standards for maximum optical fire.

What is the minimum order quantity (MOQ) for certified wholesale round stones?

For stones 0.30ct and above, you can purchase single certified loose pieces based on your production needs.

Can you supply perfectly matched round pairs for diamond stud earrings?

Absolutely. Our advanced inventory sorting allows us to match pairs with identical millimeter dimensions, color shades, and clarity levels to guarantee uniform brilliance for wholesale buyers.

Are your round diamonds grown via HPHT or CVD technology?

We utilize both methods to optimize our stock. Typically, our smaller round melee stones (under 0.50ct) are grown via HPHT to achieve high color grades naturally, while our larger rounds leverage advanced CVD technology.

Do you supply uncertified round loose diamonds in commercial parcels?

Yes, to help jewelry manufacturers lower their sourcing costs, we offer uncertified commercial parcels that have been strictly graded in-house by our gemologists.

Can I request specific millimeter tolerances for automated jewelry casting?

Yes, we accept custom orders with strict tolerances down to +/- 0.05mm for high-volume automated setting lines. Please submit your technical requirements via our inquiry form.

Are your round lab diamonds laser-inscribed on the girdle?

Yes, all our IGI and GIA certified round lab diamonds feature a discrete laser inscription on the girdle reading "LABGROWN" or "LG" alongside their unique report number for full verification.

What is your standard lead time for shipping a bulk parcel of loose rounds?

In-stock loose parcels are securely dispatched within 48 to 72 hours via global couriers.

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