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The Custom 1ct Round Single Stone Ring with IGI Certificate by ZKZ Jewelry is a classic solitaire engagement ring designed for timeless elegance and structural perfection. Crafted with an authentic 1ct round brilliant lab grown diamond, each ring features a stone evaluated for ideal fire, symmetry, and brilliance, backed by a world-recognized IGI certification.
As a leading wholesale manufacturer, ZKZ Jewelry offers full OEM/ODM customization—allowing jewelers, brands, and wholesalers to tailor metal types, setting styles, and exact diamond grading specifications.
| Parameter | Specification Detail |
|---|---|
| Product Type | Solitaire Engagement Ring / Single Stone Ring |
| Center Diamond Weight | 1.00 Carat (1ct) |
| Diamond Shape | Round Brilliant Cut |
| Diamond Type | CVD / HPHT Lab Grown Diamond |
| Diamond Color & Clarity | Color: D-E | Clarity: VS1-VS2 |
| Certification | IGI Certified (International Gemological Institute) |
| Metal Options | 10K / 14K / 18K Gold, Platinum (PT950), 925 Sterling Silver |
| Customization & MOQ | Full OEM/ODM Support | Low MOQ Available |
Every 1ct round brilliant lab grown diamond set in our single stone rings undergoes rigorous optical cutting procedures to achieve optimal light performance:
Partnering with ZKZ Jewelry gives global B2B buyers unmatched manufacturing advantages:
Yes. Every center stone in our 1ct round single stone ring is individually inspected and certified by the International Gemological Institute (IGI) with a laser-inscribed report number on the girdle.
We offer a full spectrum of precious metals, including 10K, 14K, and 18K Solid Gold (Yellow, White, Rose), PT950 Platinum, and 925 Sterling Silver, tailored to your market positioning.
Absolutely. As an OEM/ODM manufacturer, ZKZ Jewelry supports 4-prong or 6-prong settings, cathedral mountings, and inner-band custom brand laser engravings.
Yes. Our CVD/HPHT lab grown diamonds feature identical chemical composition, crystal structure, and optical hardness (10 on Mohs scale) as natural diamonds, passing all diamond testers.
We support flexible sample orders starting at 1 piece. Sample production takes 7–10 business days, while bulk wholesale orders require 12–18 business days based on specifications.