Oval Lab Diamond Solitaire Engagement Ring
Sleek minimalist oval-cut cultivated diamond ring with smooth polished band. Timeless streamlined design perfect for proposal, bridal use and classic everyday fine jewelry.


This elegant solitaire ring is crafted from high-luster polished yellow gold, fitted with a brilliant oval lab diamond held firmly by four rounded prongs. The slender, smoothly tapered band curves naturally toward the center stone for a comfortable ergonomic fit, and the open under-gallery structure maximizes light penetration to fully showcase the diamond’s elongated sparkle and fire.


The rounded prong edges reduce daily snags on clothing, making the ring suitable for long-term daily wear besides formal proposal occasions. Its clean unadorned silhouette highlights the gem’s beauty without extra decorative details. It can be matched with plain wedding bands for a classic bridal set. Premium polishing and sturdy stone mounting improve durability against routine abrasion, serving as an ideal engagement ring, anniversary gift or refined heirloom-style jewelry piece for diamond lovers who prefer understated luxury.
- CVD & HPHT Lab Diamonds
- IGI & GIA Certification
- Strict 4C Standards
- Full Grade Selections
Key Features
Oval Lab Diamond Solitaire Engagement Ring Key Features
Exceptional Diamond Brilliance
Carefully selected lab diamonds feature excellent cut for max light return & sparkle
Premium Color & Clarity
Available in D–F color and VVS clarity grades to meet fine jewelry standards.
Secure Setting
Every diamond is secured with precise craftsmanship.
Custom Service
We offer custom OEM & ODM services for private buyers and jewelry wholesalers.
OEM / ODM Customization
What We Can Customise for You
Metal Type & Finish
Available in 18K White Gold, 18K Yellow Gold, 18K Rose Gold, and Platinum 950. All alloys mixed in-house to precise karat standards. Rhodium plating included on white gold as standard. Matte, brushed, or mixed finish available on request.
- 18K White Gold
- 18K Yellow Gold
- 18K Rose Gold
- Platinum 950
Diamond Carat Weight
Total carat weight from 1.00ct to 10.00ct+. Stone size is calibrated to maintain even spacing across any chosen length. Standard production runs in 1.00ct, 1.50ct, 2.00ct, 3.00ct, and 5.00ct. Any custom carat weight is available with prior specification.
- 1.00ct
- 1.50ct
- 2.00ct
- 3.00ct
- 5.00ct
- Custom weight
Diamond Color Grade
We grow and stock diamonds across the full D–Z color range. Our standard OEM specification is D–F colorless for premium retail positioning. G–H near-colorless is available for mid-market pricing. I–J and below available for value-tier products. Fancy color diamonds (blue, pink, yellow) also available for this style on request.
- D–F Colorless
- G–H Near-Colorless
- I–J Near-Colorless
- Fancy Color (on request)
Setting Style
We support all classic jewelry setting techniques including prong, bezel, pave, channel and halo. Our professionals match each ring, earring, pendant and bracelet with its optimal craftsmanship, balancing brilliant light reflection and stable stone holding for lab-grown diamond and gemstone jewelry.
- 4-Prong Classic
- Full Bezel
- Half Bezel
- Shared Prong
Precise Size
We offer fully custom jewelry sizing to fit all standards including US, EU, UK and other regional sizes. Precise measurements guarantee a comfortable fit. If your piece does not fit properly after delivery, we provide complimentary size adjustment service with no extra fees.
- Custom Sizing
- US Size
- EU Sizes
- UK Size
- Free Resizing
Packaging & Certification
Besides our wide range of exquisite ready-made gift boxes for selection, you may customize exclusive packaging printed with your brand logo. Each order comes with one authentic certificate from IGI, GIA, GEM/GCAL or NGTC, plus matching tags and a jewelry polishing cloth.
- IGI Standard
- GIA Premium
- GEM/GCAL
- NGTC (China)
- Custom Packaging
Need a specification not listed above?
Tell us what you need — custom clasp styles, specific stone shapes within the tennis setting, matching necklace sets, or any other variation. We manufacture to brief.
About Better Star
HPHT & CVD Lab Diamond & Jewelry Manufacturer
Better Star is a vertically‑integrated diamond and jewelry manufacturer headquartered in Zhengzhou. We grow lab‑grown diamonds at our in‑house CVD and HPHT facilities, perform cutting and certification internally, and complete jewelry casting and stone setting within our own workshop. We ship orders directly to you in custom branded packaging.
Thanks to our complete industry chain, Better Star have a significant advantage in the markets for rough lab diamonds, loose diamonds, and finished jewelry. Currently, we serve jewelers and jewelry brands in over 30 countries worldwide, providing OEM and ODM services for lab diamond jewelry, as well as supporting custom lab grown diamond jewelry.
- CVD & HPHT Lab Diamond
- Cut & Polish · IGI & GIA
- Master Jewellery Artisans
- QC & Comprehensive Inspection
- Bespoke Packaging & Fast Dispatch
- Ultimate Cost Performance
Explore Our Products
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Let's Connect
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Email Gwyneth@betterstar.net
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Whatsapp 8615138918636
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Phone +86 15138918636
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Address Zensun International Plaza B-1605, ZhengZhou City, Henan Province, China