Sphere Diamond
Valentina Elongated Cushion Lab Grown Diamond Cathedral Solitaire Ring | IGI Certified
Valentina Elongated Cushion Lab Grown Diamond Cathedral Solitaire 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
We've Got You Covered
Loved by customers for its elegant design, brilliant diamond sparkle, and fine craftsmanship.
Customer Review
Google Reviews
Valentina Elongated Cushion Lab Grown Diamond Cathedral Solitaire Ring
The Valentina is designed for those who appreciate timeless elegance with refined architectural details. A stunning IGI Certified Elongated Cushion Lab Grown Diamond is elevated in a graceful cathedral setting, allowing maximum light to enter the diamond while creating an impressive presence on the finger.
Delicate milgrain detailing around the basket adds a subtle vintage character, while the clean solitaire band keeps the overall design sophisticated and versatile for everyday wear. Every ring is handcrafted by Sphere Diamond using premium materials and can be fully customized to suit your preferred diamond size, metal color, and finger size.
Ideal for engagements, anniversaries, or celebrating life's most meaningful moments.
Features
- IGI Certified Lab Grown Diamond
- Elongated Cushion Cut
- Cathedral Solitaire Setting
- Fine Milgrain Detailing
- Available in 18K White Gold, Yellow Gold, Rose Gold and Platinum
- Custom Made in Bangkok
- Lifetime Cleaning Service
- Complimentary Ring Resizing
- Free Luxury Gift Box
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.







