For jewelry retailers, the profit margin isn't just in the loose stone—it's in the finished piece. Sourcing complete Lab Grown Diamond Engagement Rings, Tennis Bracelets, and Stud Earrings directly from the manufacturer can double your margins compared to buying from domestic wholesalers. Here is your category-by-category guide.
1. Lab Grown Diamond Engagement Rings
The centerpiece of any jewelry business. In 2026, the trend is moving toward custom designs and larger center stones.
Kunlun Growth Quality Promise
Certificates don't tell the whole story. We reject ~35% of diamonds that pass standard IGI inspections but fail our internal checks.
- No Brown/Green Tint: Every stone is compared against our Master Set.
- No BGM (Milkiness): We filter out hazy crystal structures.
- Eye-Clean Guarantee: Real-world visual inspection, not just 10x loupe.
- Popular Styles: Hidden Halo, Solitaire with Pavé Band, Oval Cuts.
- Sourcing Tip: Look for a manufacturer that offers CAD design services. At Kunlun Growth, we provide free 3D rendering before casting to ensure the ring matches your client's vision perfectly.
2. Lab Grown Diamond Stud Earrings
The perfect entry-point product. High volume, low complexity.
- Best Sellers: 1.0ctw to 2.0ctw (total weight) Round Brilliant studs in 14K White Gold.
- Wholesale Advantage: By matching stones at the factory level, we ensure perfect color/clarity pairing, which is often difficult when buying loose parcels.
3. Lab Grown Diamond Tennis Bracelets
A high-ticket item that demands precision manufacturing.
- The Challenge: A tennis bracelet requires 40-60 matched stones.
- Our Solution: We use calibrated CVD smalls (0.05ct - 0.15ct) that are cut to identical dimensions. This ensures the bracelet flows smoothly on the wrist without stiff links or uneven sparkle.
4. Lab Grown Diamond Necklaces
From simple solitaire pendants to elaborate Riviera necklaces.
The "floating diamond" look is dominating 2026 fashion trends. We specialize in drilling and setting stones to maximize light performance for these delicate pieces.
We offer OEM manufacturing with NO Minimum Order Quantity (MOQ). Whether you need 1 custom ring or 50 bracelets, we can produce it in 15 days. Learn more about Custom Manufacturing.