Sphere Diamond
Celeste Marquise Bypass Lab Grown Diamond Engagement Ring | IGI Certified
Celeste Marquise Bypass Lab Grown Diamond 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
We've Got You Covered
Loved by customers for its elegant design, brilliant diamond sparkle, and fine craftsmanship.
Customer Review
Google Reviews
Celeste Marquise Bypass Lab Grown Diamond Engagement Ring
The Celeste Marquise Bypass Lab Grown Diamond Engagement Ring by Sphere Diamond is a contemporary expression of elegance. Featuring a graceful bypass band embracing a brilliant marquise-cut Lab Grown Diamond, this minimalist design symbolizes two lives coming together in perfect harmony.
The flowing infinity-inspired silhouette naturally enhances the marquise diamond, creating a ring that feels light, sophisticated, and timeless. Its elegant open-band design beautifully elongates the finger while showcasing exceptional brilliance from every angle.
Premium Lab Grown Diamond
Each Lab Grown Diamond is carefully selected for superior brilliance, fire, and clarity. Chemically, physically, and optically identical to mined diamonds, Lab Grown Diamonds offer a more ethical and sustainable choice without compromising beauty. Eligible center diamonds include an IGI Certificate for complete confidence.
Product Features
- Premium Marquise Lab Grown Diamond
- Elegant Bypass Infinity Design
- Minimalist Open Curve Band
- Available in 18K White Gold, Yellow Gold, Rose Gold and Platinum 950
- IGI Certified Diamond
- Custom Made Engagement Ring
- Lifetime After-Sales Service
- Handcrafted by Sphere Diamond Bangkok
Perfect For
- Lab Grown Diamond Ring
- Marquise Engagement Ring
- Bypass Engagement Ring
- Infinity Ring
- Minimal Engagement Ring
- Proposal Ring
- Custom Made Ring
- Engagement Ring Bangkok
- Lab Grown Diamond Bangkok Thailand
Whether you're searching for a Lab Grown Diamond Ring, Marquise Engagement Ring, Bypass Engagement Ring, Infinity Ring, or a Custom Made Engagement Ring in Bangkok, the Celeste Collection by Sphere Diamond is designed to exceed every expectation. Handcrafted with premium Lab Grown Diamonds and available in 18K Gold or Platinum, each ring combines exceptional brilliance, contemporary elegance, and timeless craftsmanship. More than just an engagement ring, Celeste is a meaningful symbol of everlasting love, thoughtfully created to be cherished for a lifetime.
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.







