Trust & Transparency

Our Certifications

Every ReVera piece is independently verified. Here's exactly what that means and how to verify your own certificate.

📜 IGI Certified

Every diamond

🏅 BIS Hallmarked

All gold jewellery

🔍 Verifiable Online

Check any time

📦 Included in Box

Physical certificate

IGI — International Gemological Institute

The World's Largest Independent Gem Certification Lab

The International Gemological Institute (IGI) is one of the world's most trusted and recognised diamond certification labs, with over 55 years of experience and laboratories across Mumbai, Antwerp, New York, Hong Kong, Tokyo, and more.

Every diamond sold by ReVera comes with an official IGI certificate — a detailed technical report that independently verifies the diamond's authenticity and quality characteristics.

What an IGI Certificate Tells You

Diamond Shape & Cut Round, Princess, Pear, Oval, etc. Cut quality grade: Excellent/Very Good/Good
Carat Weight Exact weight of the diamond measured to the nearest 0.01 carat
Colour Grade D (colourless) to Z (light yellow) — independently assessed by gemologists
Clarity Grade FL (Flawless) to I3 — nature of inclusions mapped under 10x magnification
Polish & Symmetry Quality of the diamond's surface finish and facet alignment
Fluorescence Whether the diamond glows under UV light and how strongly
Lab-Grown Confirmation Explicitly states "Laboratory Grown" on the certificate for full transparency
Laser Inscription The IGI report number is laser-inscribed on the girdle of the diamond — invisible to the naked eye but verifiable under magnification
🔎

Verify Your IGI Certificate

Every IGI certificate has a unique report number. You can verify your diamond's certificate directly on the IGI website anytime.

  1. Find your certificate number on the physical certificate that came with your order
  2. Visit igi.org/verify in your browser
  3. Enter your certificate number and click Verify
  4. Your diamond's complete grading report will appear
Verify on IGI.org →

BIS Hallmark — Bureau of Indian Standards

India's Official Gold Purity Certification

The BIS Hallmark is India's official gold purity certification, mandated by the Government of India through the Bureau of Indian Standards. It guarantees that the gold in your jewellery is exactly the purity claimed.

Since June 2021, BIS hallmarking is compulsory for all gold jewellery sold in India. All ReVera gold jewellery carries the 6-digit HUID (Hallmark Unique ID) — your guarantee of purity.

Reading the BIS Hallmark

▲
BIS Logo

The Bureau of Indian Standards triangle mark — indicates the piece has been tested

916
Purity / Fineness

916 = 22K gold (91.6% pure). 750 = 18K gold (75% pure). 585 = 14K gold

AH
Assaying Centre Code

Unique code identifying which BIS-licensed assaying and hallmarking centre tested the piece

HUID
6-Digit HUID

Hallmark Unique ID — a unique alphanumeric code assigned to each piece, verifiable online

Gold Purity Guide

24K — 99999.9% pure gold. Too soft for jewellery.
22K — 91691.6% pure. Traditional Indian jewellery standard.
18K — 75075% pure. Ideal for diamond-set jewellery. Most durable.
14K — 58558.5% pure. Very durable. Common in western jewellery.
🏅

Verify Your BIS Hallmark

Use the official BIS Care app or website to verify the HUID on your jewellery.

  1. Find the 6-digit HUID stamped on your jewellery (you may need a magnifier)
  2. Download the BIS Care app or visit bis.gov.in
  3. Enter the HUID in the verification section
  4. Your jewellery's registered details will be displayed
Verify on BIS.gov.in →

Certification FAQs

Does every ReVera piece come with a certificate?

Yes. Every diamond piece comes with a physical IGI certificate included in the box. All gold jewellery carries a BIS hallmark stamped directly on the piece.

What if I lose my IGI certificate?

Your certificate number is also laser-inscribed on your diamond. You can obtain a replacement certificate directly from IGI using this number. Contact us and we'll help guide you through the process.

Is a lab-grown diamond certificate different from a mined diamond certificate?

The certificate format is the same. The only difference is that it explicitly states "Laboratory Grown" on the certificate. The grading criteria (4Cs) are identical.

Can I trust the IGI certification?

IGI is one of the world's most respected and independent gemological institutions with over 55 years of history. They have no relationship with the sellers — their grading is completely independent and widely trusted by the global jewellery industry.