FAQ | Certified IGI Lab Grown Diamonds & Jewelry

Lab-Grown Diamond Basics

Q: What is a lab-grown diamond?

A: Lab-grown diamonds (CVD & HPHT) consist of pure crystalline carbon, possessing identical chemical, physical, optical properties as mined natural diamonds. They are genuine diamonds instead of simulants like moissanite or cubic zirconia.

Q: Are lab-grown diamonds real diamonds?

A: Yes, 100% authentic diamond. The only difference from natural diamonds is formation environment: formed in controlled lab instead of underground mine. All our stones pass professional gem lab identification.

Q: What’s the difference between CVD and HPHT diamond? Which one should I pick?

A:
– CVD: Excellent for colorless D-F grade, bigger carat sizes, fewer internal flaws, ideal for engagement rings
– HPHT: Cost-effective, outstanding for fancy yellow lab diamonds
We fully mark production method on each IGI certificate for transparent selection.

Diamond Quality & Certification

Q: What certificates come with your lab diamonds?

A: All loose diamonds & finished jewelry are equipped with official IGI international certificate, optional GIA certification upon custom request. Each document records full 4C parameters, production type and no-treatment statement.

Q: How can I verify my IGI diamond certificate online?

A: Visit official IGI report check website, input certificate number or scan QR code printed on your physical cert. We attach official verify link on every product detail page.

Q: What 4C standards do your lab-grown diamonds follow?

A: Same global grading criteria as natural diamonds: Cut/Color/Clarity/Carat. Our mainstream inventory: Excellent Cut, D-F Colorless, VS1-VS2 Clarity.

Jewelry Customization Service

Q: Can I customize bespoke lab diamond ring or pendant?

A: Yes, full custom service available: customize loose stone specs, ring design, precious metal material, inner engraving and personalized size.

Q: What metal options are available for custom jewelry?

A: Solid 14K/18K White Gold, Yellow Gold, Rose Gold and Platinum, all hypoallergenic & nickel-free for sensitive skin.

Q: How long is the whole custom production period?

A: Design confirmation → 3D render preview approval → production & QC: standard 7–14 business days; rush expedited order available for urgent demand.

Pricing & Payment Terms

Q: Why lab-grown diamond is much cheaper than natural diamond?

A: Cut off high mining, mine transportation & middleman markup cost, same 4C level lab diamond costs roughly 30%–50% less than natural counterpart without sacrificing diamond quality.

Q: Final listed price includes any hidden extra cost?

A: All displayed price is final product price with no hidden processing fee. Import duty & local tax at destination country are borne by buyer separately.

Q: Do you offer wholesale discount for bulk order?

A: 10%~20% tiered discount for bulk purchase over 5 items. Contact our B2B wholesale inbox for exclusive quotation.

Global Shipping, Delivery & Customs

Q: Do you ship worldwide to all countries?

A: Global delivery covering US, Canada, all EU nations, Australia, UK etc. Free fully-insured shipping for order over $500; flat $29 shipping fee for order below $500.

Q: How many days for international delivery?

A: USA & Main Europe: 7–14 working days; Australia, Southeast Asia: 10–20 working days. Real-time tracking number issued once parcel dispatched.

Q: Is every package fully insured against loss or damage?

A: All parcels are insured with full commodity value via DHL/UPS/FedEx, signature required upon delivery to avoid lost package.

Return, Warranty & Daily Jewelry Care

Q: What is your official return policy?

A: 30-day free return for in-stock unused goods with intact original package and complete certificate, full item refund (customer bears return shipping cost). Custom bespoke products support 15-day return with reasonable restock fee.

Q: What does lifetime manufacturer warranty cover?

A: Lifetime warranty covers natural manufacturing defect of diamond & precious metal; free prong tightening, jewelry cleaning service within first year after purchase.

Q: How to clean lab diamond jewelry at home properly?

A: Soak jewelry in warm soapy water then gently brush with soft toothbrush, rinse and dry with our free gifted cleaning cloth; keep away from bleach, chlorine and violent collision.