Frequently Asked Questions | FAQ
Frequently Asked Questions
Cannot find your answer? Contact us at info@impimo.com or LINE OA @impimojewels
About Our Products
What is Moissanite?
Moissanite is a lab-created gemstone that produces more brilliance and fire than a natural diamond - 2.5x more sparkle, with a hardness of 9.25 on the Mohs scale. All Impimo Jewels moissanite pieces are GRA (Gemological Research Association) certified.
How is Moissanite different from a real diamond?
Moissanite has a higher refractive index (2.65 vs diamond 2.42) - meaning more sparkle. Nearly as hard as diamond, yet costs up to 90% less than a natural diamond.
What is a Lab-Grown Diamond?
Lab-grown diamonds are 100% real diamonds created in a laboratory. Identical chemical properties to mined diamonds, certified by IGI (International Gemological Institute) for center stones 0.5 CT and above.
What materials are Impimo Jewels made from?
All pieces are crafted from 925 Sterling Silver plated with 18K Gold - available in White Gold, Yellow Gold, and Rose Gold.
Do Impimo pieces come with a certificate?
- Moissanite - GRA certificate for center stones 0.5 CT and above
- Lab-Grown Diamond - IGI certificate for center stones 0.5 CT and above
- Eternity rings, pave bands, and small-stone jewelry do not include certificates
Sizing and Ordering
How do I measure my ring size?
We use inner circumference in millimeters (mm), sizes 45-70mm. Wrap a string around your finger, mark where it meets, then measure the length in mm. Measure in the evening when fingers are slightly larger.
Is engraving available?
Yes! Free engraving on all ring products, up to 15 characters. Add your text in the Order Note at checkout. Engraved items cannot be returned.
How do I use a discount code?
- Add items to your cart and proceed to checkout
- Enter code 20OFF in the Discount code field
- Click Apply - 20% is deducted immediately
Shipping
Do you offer free shipping?
- Thailand - Free shipping on orders over 1,500 THB
- International - Free shipping on orders over 200 USD
How long does delivery take?
Thailand: 2-4 business days via Flash Express / J and T Express. International: 7-21 business days. All orders include a tracking number sent by email.
Returns
What is your return policy?
We accept returns within 14 days of delivery. Items must be unworn and in original packaging. Custom/engraved items are non-returnable. Contact info@impimo.com to initiate a return.
Why Choose Impimo Jewels?
Why buy on impimo.com instead of TikTok Shop?
- Lower prices - no platform fees passed to you
- Extra 20% off with code 20OFF
- Full catalog - all sizes, styles, and colors
- Direct customer service from our team
Is Impimo Jewels trustworthy?
Impimo Jewels is operated by Key Gems International Co., Ltd., a registered company in Bangkok, Thailand. We have 400+ verified customer reviews, GRA/IGI certified gemstones, a 14-day return policy, and clear contact channels.
Contact
Email: info@impimo.com
LINE OA: @impimojewels
Instagram / TikTok / Facebook: @impimo.official
Mon-Sat 9:00-21:00 ICT
Moissanite and Silver: Expert Answers
Concise, factual answers about our materials for informed buyers.
What exactly is Moissanite?
Moissanite is a lab-created stone made from silicon carbide (SiC). Originally discovered in a meteorite crater, now grown in controlled laboratory conditions. Mohs hardness 9.25, brilliance index 2.65 - exceeding natural diamond at 2.42. Exceptional durability and sparkle at a fraction of the cost of mined stones.
What does GRA-certified Moissanite mean?
GRA (Gemological Research Association) independently grades each stone for cut, color, clarity, and carat weight. Every Impimo Moissanite center stone ships with a GRA certificate - scannable proof of quality you can verify on arrival.
Will 925 Sterling Silver with 18K gold plating tarnish?
No. Impimo uses 925 Sterling Silver (92.5% pure silver) with a thick 18K gold layer. The plating process protects against tarnishing under normal wear and is hypoallergenic - safe for sensitive skin.
Why is Impimo Moissanite jewelry more affordable than European boutiques?
Impimo ships factory-direct from our own manufacturing workshop - 25 years of export experience to Europe and the USA. No importers, no distributors, no retail markup. You receive export-quality craftsmanship at the factory source price.
How do Impimo designs compare to other Moissanite brands?
Every Impimo design is created and manufactured exclusively in-house and is not available on any other platform. We produce zero white-label or dropshipped products - every piece is an Impimo original.