Gold & Platinum Guide for Diamond Jewellery - Variation
Metal Guide

The right metal for your diamond.Colour, purity, and fit.

The metal you choose shapes how your diamond looks, how the piece wears over a lifetime, and what it costs. This guide explains gold colours, gold purity, and platinum — and how each is hallmarked — so you can choose with complete confidence.

4 Metals Explained14K & 18K OptionsBIS Hallmarked
Yellow Gold
Warm, classic, and timeless — the traditional choice for fine jewellery.
White Gold
Cool and contemporary, with a bright silvery-white finish.
Rose Gold
Soft, romantic, and distinctive — a warm pink hue from copper.
Platinum
Naturally white, dense, and enduring — the premium choice.
Two Decisions

Choosing a metal is really two choices.

When people say "which metal?" they are usually deciding two things at once. The first is colour — yellow, white, rose, or the natural white of platinum — which sets the entire character of the piece and frames your diamond. The second is purity, measured in karats for gold, which affects durability, colour richness, and price.

Getting both right matters. A diamond looks subtly different against warm yellow gold than against cool platinum, and a higher gold purity feels more luxurious but wears more softly. This guide takes the two decisions in turn, then explains how to verify what you are buying.

"The metal is not just a setting for the diamond — it is half of how the finished piece looks and feels on the hand."

Every Variation piece is crafted in BIS hallmarked 14K or 18K gold, or in platinum — so whichever you choose, its purity is independently certified.

What the Metal Affects

Four things your choice decides.

How Your Diamond Looks

White metals make a colourless diamond appear whiter still; yellow gold can make a slightly warm diamond look brighter by contrast. The metal frames the stone.

How It Wears

Durability varies by metal and purity. The right choice holds your diamond securely and stands up to daily life for decades.

What It Costs

Platinum costs more than gold; 18K costs more than 14K. With diamond prices lower in lab grown, metal choice is now a meaningful part of the total.

How It Suits You

Skin tone, style, and how much upkeep you want all point toward different metals. There is no best metal — only the best one for you.

Decision One — Colour

Four metals. Four characters.

Each metal gives your diamond a different personality. Here is how they compare in look, character, and practical wear.

Yellow Gold
Warm & Classic

The timeless original. Yellow gold brings warmth and tradition, and flatters warmer and deeper skin tones beautifully. Its colour comes from pure gold, so the higher the karat, the richer the hue.

Best ForClassic, vintage, and heritage styles
UpkeepLow — never needs replating
White Gold
Cool & Modern

Gold alloyed with white metals and finished with a rhodium plating for a bright, cool white. It makes colourless diamonds look even whiter, and suits cooler skin tones and contemporary designs.

Best ForModern looks; a platinum-like white for less
UpkeepRe-plating every 1–3 years
Rose Gold
Soft & Romantic

Gold blended with copper for a warm pink blush. Distinctive and romantic, it flatters nearly every skin tone and the copper content makes it pleasingly durable for daily wear.

Best ForDistinctive, romantic, on-trend pieces
UpkeepLow — never needs replating
Platinum
Premium & Enduring

Naturally white and exceptionally dense, platinum never needs plating and holds diamonds with remarkable security. Hypoallergenic and substantial in the hand, it is the premium choice for a reason.

Best ForHeirloom pieces; sensitive skin; secure settings
UpkeepDevelops a soft patina; polish to restore shine
Decision Two — Purity

What the karat number really means.

Pure gold — 24K — is too soft to hold a diamond securely or survive daily wear, so jewellery gold is always alloyed with other metals for strength. The karat tells you how much of the metal is pure gold: 18K is 75% gold, 14K is 58.5%.

A higher karat means a richer colour and a more luxurious feel; a lower karat means greater hardness, better durability, and a lower price. For diamond jewellery worn every day, 18K and 14K hit the sweet spot — rich enough to feel precious, hard enough to protect the stone.

The BIS fineness number: on a hallmark you will see a three-digit number, not a karat. 750 means 18K (75.0% gold), 585 means 14K (58.5%), and 916 means 22K (91.6%). They are two ways of saying the same thing.
Why Not Always Higher?

Purer isn't always better.

It is tempting to assume the highest gold content is the best choice, but for diamond jewellery that is rarely true. The very softness that makes high-karat gold feel rich also makes it more prone to scratches, bending, and — most importantly — prongs that can loosen their grip on a stone over time.

This is why fine diamond jewellery worldwide is set in 18K or 14K rather than 22K or 24K. The alloy is strong enough to keep your diamond safe for a lifetime, while still being unmistakably gold.

22K and tradition: 22K remains the favourite for traditional Indian gold jewellery, where rich colour matters more than holding a stone. For diamond pieces with prongs, 18K and 14K are the safer, more practical choice.
PurityBIS FinenessGold ContentCharacterBest Suited To
18K Gold75075.0% pure goldRich colour, premium feel, very good durabilityFine diamond jewellery
14K Gold58558.5% pure goldHarder, more scratch-resistant, more affordableEveryday & active wear
22K Gold91691.6% pure goldDeep, rich colour but noticeably softerTraditional gold jewellery
24K Gold99999.9% pure goldPurest, but too soft to hold stones or wear dailyCoins & investment, not rings
The Common Question

Platinum or white gold? They look alike.

Both give you a cool, white setting — so people often assume they are interchangeable. They are not. Here is the honest difference, so you can pick the one that fits your life and budget.

Platinum
Naturally White
  • Naturally white all the way through — never needs plating, and the colour never fades.
  • Denser and heavier, with a substantial, premium feel in the hand.
  • Holds diamonds exceptionally securely — ideal for an heirloom piece.
  • Hypoallergenic — a good choice for sensitive skin.
  • Costs more, and develops a soft matte patina over time (easily polished back to shine).
White Gold
Gold, Plated White
  • A bright, mirror-white finish — arguably whiter than platinum when freshly plated.
  • Lighter on the hand and more affordable than platinum.
  • Available in 18K and 14K, so you can balance colour and durability.
  • The rhodium plating wears over time and needs re-applying every 1–3 years.
  • Alloys may contain nickel, which can affect very sensitive skin.

In short: choose platinum for a naturally white, low-fuss, lifetime metal and don't mind paying more; choose white gold for the same cool look at a lower price, accepting an occasional re-plate. Both are excellent — the right one depends on your priorities.

Proof of Purity

What a BIS hallmark guarantees.

In India, gold jewellery must carry a BIS hallmark — the government's independent guarantee that the gold is exactly as pure as claimed. Every hallmark is made of four parts. Here is what each one tells you.

01
BIS Logo

A triangle with the letters BIS, confirming the piece was certified under the official government scheme.

02
Purity / Fineness

A three-digit number — 750 for 18K, 585 for 14K, 916 for 22K — stating the exact gold content.

03
Assaying Centre

A code identifying the BIS-recognised centre that independently tested and certified the piece.

04
HUID Number

A unique six-character code, recorded in the BIS database, that links the piece to its full certification record.

Verify It Yourself

Check your gold's purity in under a minute.

The HUID is your most powerful protection. It lets you confirm, independently of any seller, exactly what you are buying — before and after purchase. We encourage every customer to check it.

Every Variation piece is set in BIS hallmarked 14K or 18K gold, with a verifiable HUID — alongside the IGI certificate for your diamond.
1
Find the HUID — the six-character code laser-marked on the inner band of your ring.
2
Open the BIS Care app — free on Android and iOS — or visit the BIS website.
3
Enter the HUID and tap verify to pull up the official record.
4
Confirm the details — purity, weight, and jeweller should match your piece and invoice.
On platinum: platinum is certified separately from gold and carries its own purity mark, such as Pt950 (95% pure). Ask us and we will point out exactly where to find it.
How to Choose

Four questions that point you to the right metal.

No metal is objectively best. Work through these and the right choice usually becomes clear.

01
Warm or cool?

Prefer warmth and tradition, or flatter a warmer skin tone? Lean yellow or rose gold. Prefer a cool, modern, bright-white look? Lean white gold or platinum. This is the biggest decision — it sets the whole character.

02
How active is the wearer?

For hands-on, everyday wear, harder 14K gold or secure platinum resist daily knocks best. For occasion pieces, 18K's richer colour shines without the same wear concerns.

03
How much upkeep?

Want to forget about maintenance? Yellow gold, rose gold, and platinum never need plating. Happy with an occasional re-dip for a brilliant white? White gold is ideal.

04
What's your budget?

Platinum sits at the top, then 18K, then 14K. With lab grown diamonds keeping the stone affordable, you can put more into the metal — or save it without anyone noticing the difference.

Frequently Asked

Questions about metals, answered.

The questions we hear most when customers are choosing a metal for their piece. If yours isn't here, just ask.

Chat with us on WhatsApp — we usually reply within a few minutes.

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Is 18K or 14K gold better for a diamond ring?
Neither is universally "better" — they suit different priorities. 18K has a richer gold colour and a more premium feel, with very good durability. 14K is harder and more scratch-resistant, making it excellent for active, everyday wear, and it costs less. Both hold a diamond securely and both are fully hallmarked. If you want the richest colour, choose 18K; if you want maximum durability and value, choose 14K.
Does white gold turn yellow over time?
Slightly, and it is normal. White gold is yellow gold alloyed white and finished with a rhodium plating that gives it a bright white shine. Over one to three years that plating gradually wears, and a faint warm tone can show through. A simple, inexpensive re-plating restores it completely. If you would rather never think about it, platinum or yellow/rose gold avoid plating entirely.
Is platinum worth the extra cost over white gold?
It depends on what you value. Platinum is naturally white so it never needs plating, is denser and more substantial, holds stones very securely, and is hypoallergenic — qualities that make it ideal for an heirloom piece or sensitive skin. White gold gives a very similar look for less, accepting occasional re-plating. If low maintenance and longevity matter most, platinum justifies its price; if budget is the priority, white gold is the smart choice.
Which metal makes a diamond look biggest and whitest?
White metals — platinum and white gold — blend with a colourless diamond and can make it appear whiter and slightly larger, since there is no colour contrast at the setting. Interestingly, yellow gold can flatter a diamond with a faint warm tint, as the surrounding gold makes the stone look whiter by comparison. So the best metal partly depends on your diamond's colour grade, which is something we are happy to advise on.
What does the number stamped inside my ring mean?
On gold, the three-digit BIS fineness number states the purity: 750 is 18K (75% gold), 585 is 14K (58.5%), and 916 is 22K (91.6%). You will also see the BIS triangle logo, the assaying centre's mark, and a six-character HUID. On platinum, you will instead see a platinum purity mark such as Pt950. Together these confirm exactly what your piece is made of.
Can I mix metals, or match an existing piece?
Yes on both counts. Mixed-metal looks — such as a two-tone band — are a deliberate and elegant style choice. And if you are matching a ring to an existing piece, tell us the metal and karat and we will craft yours to sit beautifully alongside it. Because everything we make is to order, we can match your metal exactly.
Is rose gold durable enough for everyday wear?
Yes — in fact the copper that gives rose gold its warm pink colour also makes it pleasingly hard-wearing, comparable to or better than yellow gold of the same karat. It never needs plating, and its colour is consistent throughout the metal. Rose gold is a genuinely practical choice for a ring worn every day, not just a fashionable one.
Found Your Metal?

Now find your ring.

Every Variation ring is made to order in your choice of metal and purity — IGI certified diamond, BIS hallmarked gold. Not sure which suits you? Tell us about the piece and we'll guide you.

Explore the Guide

Everything you need to choose with confidence.

Start HereThe Engagement Ring Buying GuideNine simple steps from budget to certificate — the guide that ties all of these together. →
IGI Certified Diamonds
BIS Hallmarked Gold
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