Frequently Asked Questions
Find answers to the most common questions about lab-grown diamonds, our products, and services. Can't find what you're looking for? Contact us - we're here to help!
About Lab-Grown Diamonds
What are lab-grown diamonds?
Lab-grown diamonds are real diamonds created in controlled laboratory environments using advanced technology that replicates the natural diamond formation process. They are chemically, physically, and optically identical to mined diamonds.
Are lab-grown diamonds real diamonds?
Yes! Lab-grown diamonds are 100% real diamonds with the same chemical composition (pure carbon in a crystalline structure), hardness (10 on the Mohs scale), brilliance, and fire as mined diamonds. They are certified by the same gemological institutes (GIA, IGI, GCAL).
How are lab-grown diamonds made?
Lab-grown diamonds are created using two main methods:
CVD (Chemical Vapor Deposition): Carbon atoms are deposited layer by layer to form a diamond crystal.
HPHT (High Pressure High Temperature): Mimics the extreme conditions deep within the Earth where natural diamonds form.
Can you tell the difference between lab-grown and mined diamonds?
No, not with the naked eye or even under a jeweler's loupe. Lab-grown and mined diamonds are visually identical. Only specialized gemological equipment can detect the subtle differences in crystal growth patterns.
Are lab-grown diamonds conflict-free?
Yes, 100%. Lab-grown diamonds are guaranteed conflict-free because they're created in controlled facilities with complete transparency in the supply chain. There's no connection to conflict zones or unethical mining practices.
Why are lab-grown diamonds less expensive?
Lab-grown diamonds cost 30-40% less than mined diamonds of comparable quality because the production process is more efficient and doesn't involve expensive mining operations, long supply chains, or the rarity premium associated with natural diamonds.
Quality & Certification
Are your diamonds certified?
Yes, all our lab-grown diamonds come with certification from internationally recognized gemological laboratories including GIA (Gemological Institute of America), IGI (International Gemological Institute), and GCAL (Gem Certification & Assurance Lab).
What do the 4Cs mean?
The 4Cs are the universal standards for assessing diamond quality:
Cut: How well the diamond is cut and proportioned (affects brilliance)
Color: Graded from D (colorless) to Z (light yellow/brown)
Clarity: Presence of inclusions or blemishes
Carat: The weight/size of the diamond
What quality should I choose?
For the best value, we recommend: Excellent/Very Good cut, G-H color, and VS2-SI1 clarity. This combination offers beautiful diamonds that are eye-clean and brilliant at an excellent price point.
Shopping & Orders
How do I place an order?
Browse our collection online, add items to your cart, and proceed to checkout. You can also contact us directly for personalized assistance or custom orders.
Do you offer custom design services?
Yes! We specialize in custom jewelry design. Contact us to discuss your vision, and our expert team will guide you through the design process from consultation to final delivery. Learn more about customization.
Can I see the diamond before purchasing?
We provide detailed photos, videos, and certification for each diamond. For custom orders, we'll share 3D renderings and progress photos throughout the creation process.
What payment methods do you accept?
We accept major credit cards (Visa, Mastercard, American Express), debit cards, and secure online payment methods through our Shopify checkout.
Is my payment information secure?
Absolutely. We use Shopify's secure, encrypted payment processing system that meets the highest industry standards for online security.
Shipping & Delivery
Do you ship internationally?
Yes, we ship worldwide from Dubai, UAE. Shipping costs and delivery times vary by location.
How long does shipping take?
Standard shipping typically takes 5-10 business days depending on your location. Express shipping options are available. Custom orders require additional production time (typically 3-6 weeks).
How is my jewelry packaged?
All jewelry is securely packaged in elegant presentation boxes with full insurance and tracking for safe delivery.
Can I track my order?
Yes, you'll receive a tracking number via email once your order ships. You can track your package in real-time.
Returns & Exchanges
What is your return policy?
We offer a 30-day return policy for unworn, undamaged items in original packaging. Custom-designed pieces are final sale unless there's a manufacturing defect.
How do I return or exchange an item?
Contact us within 30 days of delivery to initiate a return or exchange. We'll provide instructions and a return authorization.
Do you offer resizing?
Yes, we offer complimentary resizing within 60 days of purchase for rings. Contact us for details.
Care & Maintenance
How do I care for my lab-grown diamond jewelry?
Clean regularly with mild soap and warm water, store separately to prevent scratching, and have it professionally inspected annually. View our complete care guide.
Do lab-grown diamonds need special care?
No, lab-grown diamonds require the same care as mined diamonds. They're equally durable and resistant to scratching.
Do you offer warranties?
Yes, all our jewelry comes with a manufacturer's warranty covering defects in materials and workmanship. Certificates and warranties are included with every purchase.
Ring Sizing
How do I know my ring size?
We provide a comprehensive ring sizing guide with multiple methods to determine your size at home. View our ring size guide.
What if I don't know the ring size for a surprise proposal?
We offer complimentary resizing within 60 days. You can also borrow a ring they currently wear or ask their friends/family for help.
About The Centre Stone
Where are you located?
We're based in Dubai, United Arab Emirates, and operate as an online-first jewelry destination serving customers worldwide.
How long have you been in business?
The Centre Stone is a daughter venture of Colors & Carats Diamonds LLC, which has over 30 years of experience in the diamond industry.
Can I visit your showroom?
We currently operate online to provide the best value and convenience. Our expert team is available via phone, email, and video consultation to provide personalized service.
Still Have Questions?
We're here to help! Contact our diamond experts:
Phone:
Trisha Patel: +971 556 919 786
Sahil Sanghvi: +971 509 685 805
