Author: varadmkamat@gmail.com

A diamond certificate is the single most important piece of paper in your purchase. It converts “trust me” into verifiable fact. Every diamond at Avatar Diamonds ships with an IGI or SGL report — here’s how to read one, and why it matters more than any discount.

What is a diamond certificate?

An independent laboratory report. A gemologist who has no stake in the sale examines your stone with calibrated instruments and records its identity and quality. The jeweller doesn’t grade the diamond; the lab does. That independence is the whole point.

Who are IGI and SGL?

IGI (International Gemological Institute) is one of the world’s largest diamond grading labs and the most widely used authority for lab-grown diamonds globally.

SGL (Solitaire Gemmological Laboratories) is a respected international lab with a strong presence in India, grading both mined and lab-grown stones.

Both grade lab-grown diamonds on exactly the same scales used for mined diamonds.

How to read the report

Report number. Unique to your stone — and laser-inscribed on the diamond’s girdle, visible under magnification. Match them and you know the certificate belongs to your diamond.

Shape and measurements. Round brilliant, oval, pear, and the stone’s exact dimensions in millimetres.

Carat weight. Measured to two decimal places.

Colour grade. From D (colourless) downward. D–F is colourless; G–J near-colourless. Most of our customers choose E–F.

Clarity grade. From FL (flawless) to I (included). VS1–VS2 stones look flawless to the naked eye at a fraction of FL prices.

Cut grade. Excellent, Very Good, Good — this drives sparkle. We recommend never going below Very Good.

Growth method (lab-grown reports). HPHT or CVD — the process used to grow the stone. Both produce real diamonds; neither is “better” for the wearer.

Verify it yourself in two minutes

Both labs let you check any report number free on their websites — igi.org and sglworld.com. Type in the number from your certificate and the full grading appears. Do this with any diamond you buy, from anyone, including us.

Certificate + hallmark = a safe purchase

The diamond’s certificate covers the stone; the BIS hallmark stamped inside the gold covers the metal. Together with an itemised bill showing the diamond, gold weight, and making charges separately, you have a purchase you can verify, insure, exchange, or sell — anywhere, anytime.

Have a certificate you’d like help reading? Bring it to our Mangaluru showroom (open daily, 11 AM – 7 PM) or WhatsApp us a photo — we’ll walk you through it, whether you bought the piece from us or not.

“Is it a real diamond?” It’s the first question we hear in our Mangaluru showroom, and it deserves a straight answer: yes. A lab-grown diamond is a real diamond — not a substitute like cubic zirconia or moissanite. Here’s what’s the same, what’s different, and how to decide.

What’s exactly the same

Chemistry and structure. Both are pure carbon in the same crystal structure. A lab-grown diamond isn’t “like” a diamond; it is one.

Hardness and durability. Both measure 10 on the Mohs scale — the hardest natural material known. Your ring will outlast you either way.

Sparkle. Same refractive index, same fire, same brilliance. Even a trained gemologist cannot tell them apart by eye; it takes specialised lab equipment.

Grading. Both are graded by the same laboratories (IGI, SGL, GIA) on the same 4C scale. An E-colour VS1 lab-grown diamond meets the identical standard as an E-colour VS1 mined one.

What’s actually different

Origin. Mined diamonds formed underground over a billion or more years. Lab-grown diamonds are crystallised over several weeks in a controlled facility, using the same conditions of extreme pressure and temperature (or a carbon-vapour process). Different birthplace, same stone.

Price. Because supply isn’t constrained by mining, lab-grown diamonds cost far less — commonly 60–70% less for the same size and grade.

Footprint. No mining means no displaced earth and none of the sourcing concerns that have followed the mined-diamond trade. Every one of our stones is grown and certified, with a paper trail.

Resale mythology. You’ll hear that mined diamonds “hold value.” In practice, jewellers buy back mined diamonds well below retail too. What protects you is a written buy-back policy — ours is 80% exchange on diamond value and 60% buy-back on invoice, in writing, for lab-grown pieces.

How to tell them apart

You can’t — and neither can we, by eye. Certified lab-grown diamonds carry a microscopic laser inscription on the girdle with the certificate number, so there’s never confusion about what you own. That inscription plus the IGI/SGL certificate is your guarantee.

Which should you choose?

If the romance of a billion-year-old stone matters to you and budget is no constraint, mined diamonds are beautiful things. If you want the identical sparkle, a certificate from the same lab, and a much saner bill — lab-grown is simply the smarter buy. Come compare both side by side at our showroom in Mangaluru, open daily 11 AM – 7 PM, and decide with your own eyes.

If you’ve started shopping for diamond jewellery in Mangalore, you’ve probably noticed two very different price tags for what looks like the same ring. The difference is usually the diamond: mined or lab-grown. Here’s how lab-grown diamond pricing actually works, so you can walk into any showroom — ours included — and know exactly what you’re paying for.

What decides the price of a lab-grown diamond?

The same four things that decide the price of a mined diamond — the 4Cs.

Carat. Weight matters most. But unlike mined diamonds, lab-grown prices don’t explode as carat goes up, because larger stones aren’t rare in the same way. This is why a 1-carat lab-grown solitaire is within reach for many families for whom a mined one never was.

Cut. The only C determined by human skill, and the one that controls sparkle. Never compromise here — a well-cut smaller stone looks better than a poorly-cut bigger one.

Colour and Clarity. Graded on the same scale as mined diamonds (D–Z for colour, FL to I for clarity). Lab-grown stones make higher grades affordable — many of our customers choose E–F colour, VS clarity stones that would cost several times more if mined.

The gold is priced separately — and transparently

A finished piece has three components: the diamond, the gold, and making charges. The gold in our jewellery is BIS-hallmarked 14KT or 18KT, billed at the day’s gold rate — the same rate you’ll see displayed at the top of our website every day. Making charges cover the karigar’s work. Ask any jeweller to show you this break-up; if they won’t, walk out.

So how much cheaper is lab-grown?

For the same size and grade, a lab-grown diamond typically costs a fraction of a comparable mined stone — often 60–70% less. The stone itself is chemically and optically identical; the price difference comes from supply, not quality. That saving usually goes one of two ways: a larger or higher-grade stone, or simply money kept in your pocket.

Certification is what protects your money

Every diamond we sell comes with an IGI or SGL certificate stating its exact 4C grades — the same labs, the same grading scale used for mined diamonds. The certificate is what makes the price verifiable. It also backs our lifetime buy-back and exchange policy.

See the difference in person

Numbers on a screen only go so far. Visit us at Lotus Elite, KRR Road, Mangaluru — open every day, 11 AM to 7 PM — and compare certified stones side by side. Or try our online price estimator to get a live estimate before you visit. No pressure, no drama; bring your questions.