Independently Certified Gemstones
Every stone in our certified collection is accompanied by a report from a leading gemological laboratory — GRS, SSEF, Gübelin, GIA, or AGL — verifying its authenticity, origin, and treatment status.
Why Certification Matters When Buying Gemstones
A gemological certificate is your assurance that a gemstone is exactly what it is claimed to be. For colored gemstones — rubies, sapphires, emeralds, and other precious stones — an independent laboratory report confirms the species, variety, geographic origin, and any treatments the stone has undergone. Without this documentation, buyers have no way to verify the claims made by a seller.
At Reve Diamonds, we only offer certified stones from the world's most respected gemological laboratories, and our team can guide you through interpreting any certificate to ensure you make a fully informed purchase.
Leading Gemstone Laboratories
- GRS (GemResearch Swisslab): the gold standard for ruby, sapphire, and emerald origin determination.
- SSEF (Swiss Gemmological Institute): renowned for "pigeon blood" and "royal blue" quality designations.
- Gübelin Gem Lab: one of the oldest and most respected colored stone laboratories.
- GIA (Gemological Institute of America): widely recognized; strong for sapphires and alexandrite.
- AGL (American Gemological Laboratories): specialist in colored stones and enhancements disclosure.
FAQs — Certified Gemstones
Do all gemstones need a certificate?
For high-value rubies, sapphires, and emeralds we strongly recommend a certificate. For more modestly priced stones, certification adds cost and may not always be warranted — our team can advise case by case.
Can I get a certificate for a stone I already own?
Yes. We can arrange independent certification through our laboratory partners for stones you already own, whether purchased from us or elsewhere.
Independently Certified Gemstones
Every stone in our certified collection is accompanied by a report from a leading gemological laboratory — GRS, SSEF, Gübelin, GIA, or AGL — verifying its authenticity, origin, and treatment status.
Why Certification Matters When Buying Gemstones
A gemological certificate is your assurance that a gemstone is exactly what it is claimed to be. For colored gemstones — rubies, sapphires, emeralds, and other precious stones — an independent laboratory report confirms the species, variety, geographic origin, and any treatments the stone has undergone. Without this documentation, buyers have no way to verify the claims made by a seller.
At Reve Diamonds, we only offer certified stones from the world's most respected gemological laboratories, and our team can guide you through interpreting any certificate to ensure you make a fully informed purchase.
Leading Gemstone Laboratories
- GRS (GemResearch Swisslab): the gold standard for ruby, sapphire, and emerald origin determination.
- SSEF (Swiss Gemmological Institute): renowned for "pigeon blood" and "royal blue" quality designations.
- Gübelin Gem Lab: one of the oldest and most respected colored stone laboratories.
- GIA (Gemological Institute of America): widely recognized; strong for sapphires and alexandrite.
- AGL (American Gemological Laboratories): specialist in colored stones and enhancements disclosure.
FAQs — Certified Gemstones
Do all gemstones need a certificate?
For high-value rubies, sapphires, and emeralds we strongly recommend a certificate. For more modestly priced stones, certification adds cost and may not always be warranted — our team can advise case by case.
Can I get a certificate for a stone I already own?
Yes. We can arrange independent certification through our laboratory partners for stones you already own, whether purchased from us or elsewhere.
