Sphere Diamond
Classic 4 prong cathedral style lab grown diamond solitaire engagement ring | IGI Certified
Classic 4 prong cathedral style lab grown diamond solitaire engagement ring | IGI Certified
Material
Product Details
Product Details
- Metal: White gold 18k/ Yellow gold 18k/ Rose gold 18k/ Platinum
- Diamond type: Lab Grown Diamond
- Carat: 0.3-10+ carats
- Color: D/ E/ F/ G
- Clarity: IF/ VVS1/ VVS2/ VS1/ VS2
- Certification: IGI Certificate
Shipping & Delivery
Shipping & Delivery
- Free Shipping
- Delivered in Discreet Packaging
- Professional Appraisal
- Sphere Diamond Premium Silk Box
- Lifetime Warranty
- Lifetime Cleaning Service
- Resize Service
- FAQ
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Loved by customers for its elegant design, brilliant diamond sparkle, and fine craftsmanship.
Customer Review
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Classic Round 4-Prong Cathedral Lab Grown Diamond Solitaire Engagement Ring
Timeless elegance meets modern craftsmanship in the Classic Round 4-Prong Cathedral Lab Grown Diamond Solitaire Engagement Ring by Sphere Diamond Bangkok. Featuring a brilliant Round Cut lab grown diamond secured by a refined four-prong setting, this classic solitaire design places the beauty and brilliance of the center diamond at the heart of the ring.
Graceful cathedral-style shoulders rise toward the center diamond, creating an elegant profile while maintaining a clean and sophisticated silhouette. Paired with the warmth of Yellow Gold, this timeless design is ideal for proposals, engagements, anniversaries and anyone looking for an elegant diamond ring that will never go out of style.
Round Cut Lab Grown Diamond Engagement Ring
The Round Brilliant Cut is one of the most iconic choices for an engagement ring, celebrated for its exceptional sparkle, symmetry and timeless appearance. Its classic proportions make it beautifully versatile and easy to pair with a variety of wedding bands.
Classic 4-Prong Solitaire Setting
Four delicate prongs secure the center diamond while keeping much of the stone visible, allowing light to interact beautifully with the diamond. The minimalist solitaire setting keeps attention on the Round Cut center stone and creates an elegant engagement ring that feels refined from every angle.
Cathedral Style Engagement Ring
The cathedral shoulders gently sweep upward toward the diamond setting, creating a graceful architectural profile inspired by the arches of a cathedral. This detail adds dimension and elegance without taking attention away from the center diamond.
IGI Certified Lab Grown Diamond
The center lab grown diamond is available with an IGI diamond grading report, providing independent grading information about the individual diamond and its characteristics.
Product Highlights
- Round Brilliant Cut Lab Grown Diamond
- Classic Solitaire Engagement Ring
- Elegant 4-Prong Setting
- Cathedral Style Shoulders
- Yellow Gold Ring Setting
- IGI Certified Lab Grown Diamond option
- Timeless minimalist engagement ring design
- Pairs beautifully with wedding and eternity bands
- Custom Made options available
- Sphere Diamond Bangkok, Thailand
Custom Lab Grown Diamond Engagement Ring in Bangkok
Create a ring that reflects your personal style with Sphere Diamond. This classic solitaire design can be customized with your preferred diamond size and selected ring specifications, making it an elegant choice for those searching for a Custom Made Lab Grown Diamond Engagement Ring in Bangkok.
Where to Buy a Lab Grown Diamond Engagement Ring in Bangkok?
For those searching for a Lab Grown Diamond Engagement Ring Bangkok, Round Cut Diamond Ring Bangkok, IGI Certified Lab Grown Diamond Ring, Solitaire Engagement Ring Bangkok or Custom Engagement Ring Bangkok, discover and customize your engagement ring with Sphere Diamond Bangkok, Thailand.
Contact Diamond Specialist

Signature Collection
Inspired by timeless strength and elegance of the Eiffel-Tower, a symbol of enduring love at the heart of Paris, Meticulously crafted to cradle your diamond with grace, and illuminate every moment of your love story
Product Questions
Frequently Asked Questions
Is the diamond IGI or GIA certified?
Yes.
Sphere Diamond lab-grown diamonds are IGI certified, while natural diamonds are GIA certified. Each certificate verifies the diamond’s cut, color, clarity, and carat weight for complete transparency and confidence.
Can I customize the center diamond?
Absolutely.
You can personalize the diamond shape, carat size, color, clarity, and metal type to create a ring that reflects your personal love story.
How long does production take?
Most new custom-made rings require approximately 7–14 business days, depending on the design and diamond selection. Ready-to-wear pieces may be available immediately.
Do you offer resizing?
Yes.
We offer ring resizing services to ensure the perfect fit. Our team will guide you through sizing before and after purchase if needed.
Is this ring available in Platinum?
Yes.
This design can be crafted in Platinum 950, 18K White Gold, 18K Yellow Gold, or 18K Rose Gold.
Can I view the ring in person at CentralWorld?
Yes.
You are welcome to visit our official boutique at CentralWorld Bangkok for a private consultation and to experience the ring in person.
Do you provide worldwide shipping?
Yes.
We offer secure worldwide shipping with careful packaging and full insurance coverage for selected destinations.
What is the warranty policy?
All Sphere Diamond jewelry comes with lifetime after-sales service support, including cleaning, inspection, and professional care recommendations. Warranty terms may vary depending on the product type and customization.
