Trillion Cut Lab Grown Diamond Engagement Rings

Trillion Cut Lab Grown Diamond Engagement Rings

Reia's trillion-cut lab-grown diamond engagement rings use triangle-shaped laboratory-grown diamonds, either as a bold centre stone or as a matched pair beside a round, oval or emerald centre. These are unique trillion-cut lab-grown diamond engagement ring designs for anyone who wants a sharp, modern shape that still sparkles like a brilliant. Every ring is made in BIS-hallmarked 14KT gold, with IGI or SDI-certified diamonds.

Reia’s Promise: BIS-hallmarked gold · IGI or SDI certified · EF colour, VVS clarity · Free CAD design · Lifetime exchange and buyback · Try them on in Bengaluru, Coimbatore & Guwahati

What Is a Trillion-Cut Diamond?

A trillion-cut diamond is a triangular diamond with three equal sides. It is usually cut as a brilliant, with many facets, so it sparkles strongly despite its geometric outline. Trillions are also called trilliants.

There are two main styles. Straight-sided trillions have crisp, flat edges, often used as side stones. Curved trillions have gently rounded sides, which give a fuller look and suit a centre stone.

Trillions are shallow, so they look large for their carat weight. A trillion often shows more surface area face-up than a round diamond of the same weight.

Trillion Cut Lab Grown Diamond Ring Designs

Three-stone rings with trillion side stones

The classic use. A matched pair of trillions sits on either side of a round, oval cushion or emerald centre, pointing outwards. They add width and sparkle and frame the centre stone cleanly.

They suit engagements and anniversaries.

What to check: that both trillions match in size, colour and cut, and that their points are protected by the setting.

Modern trillion-cut diamond engagement rings with a trillion centre

A trillion as the main stone makes a confident, architectural engagement ring. Twist bands and bezel settings suit the shape especially well.

They suit anyone who wants a ring that looks nothing like a classic solitaire.

What to check: point protection. A bezel or V-prongs at each corner keep the tips from chipping.

Bezel and asymmetric designs

Bezel-set trillions beside a line of round diamonds, or paired with another shape in a toi et moi style, give a minimal, modern look.

What to check: balance on the finger, so an asymmetric design still sits straight.

How to Choose a Trillion Cut Engagement Ring

Trillion diamond rings for women: centre or side stones?

Choose trillion side stones if you love a classic centre stone and want extra width and sparkle. Choose a trillion centre if you want the shape itself to be the statement. Side-stone designs are more versatile; a trillion centre is more distinctive.

Which centre stone with trillion sides?

• Round: the most classic pairing, all brilliance

• Oval: a softer, elongated look

• Emerald or Asscher: a sharp contrast of step cut and brilliant cut

• Cushion: a romantic, vintage feel

Trillion-cut diamond engagement rings in gold

All gold is BIS-hallmarked 14KT, which is harder and more scratch-resistant for a ring worn every day.

• Yellow gold gives warmth and makes the trillion's outline stand out.

• White gold keeps the look cool and crisp.

• Rose gold softens the sharp geometry.

Protecting the points

The three corners are a trillion's most delicate part. Choose a bezel or V-prongs that cover each tip, especially if the ring will be worn daily.

Why Choose Lab-Grown Diamond Engagement Rings

A laboratory-grown diamond is a diamond grown in a controlled environment rather than mined. It is the same material: carbon in the same crystal structure, 10 on the Mohs hardness scale, with the same optical and physical properties, graded by the same independent laboratories. It is not a simulant.

• Matched pairs are easier. Trillion side stones must match exactly. Consistent laboratory-grown supply makes that easier.

• More diamonds for the budget. Laboratory-grown diamonds generally cost considerably less than mined stones of comparable size and grade. It's a market observation, not a guarantee.

• Built for everyday wear. Diamond hardness keeps an engagement ring bright for decades.

Laboratory-grown diamonds need no mining, but growing them is energy-intensive; the real footprint depends on how the facility is powered. Reia doesn't claim zero impact.

Premium Trillion Cut Lab Grown Diamond Engagement Rings in India: Reading the Quality

Certification: Every ring ships with its jewellery certificate, and the gold is BIS-hallmarked for purity. Diamonds are IGI or SDI certified. IGI still issues full 4Cs reports for laboratory-grown diamonds.

Pricing: diamonds are priced at a flat ₹35,000 per carat across all stones. A ring with a 1.0-carat centre and two 0.20-carat trillions carries 1.4 carats, or ₹49,000 of diamond value. The final price adds gold weight and making charges.

Designer Trillion Cut Engagement Rings, Made for You

Trillion side stones are cut to fit their centre, so many trillion engagement rings are made to order. These are designer trillion-cut lab-grown diamond rings for women who want the exact shape, size and setting they have in mind.

What you can specify:

• Trillion as centre or side stones

• Centre stone shape and carat weight

• Straight or curved trillions

• Setting: prong, V-prong or bezel

• Gold colour: yellow, white or rose, 14KT or 18KT

• Band style, from plain to twist or pavé

How it runs: share a reference, a Pinterest screenshot or a sketch. For approved designs, the team discusses direction and pricing and creates a free CAD visual for your review, with a wax model where applicable. Nothing is made until you've approved the design and confirmed the size, and you get an expected delivery date before you order. Custom orders are subject to Reia's approval before production. [Book a design consultation].

Try Them On, or Buy Online With Confidence

Visit all stores or book an appointment. Not near one? An advisor will show you rings live on a video call.

Buying online: Cash on Delivery is available, and in-stock items can be returned within 15 days in unused condition, with a 5% deduction. Personalised pieces sit outside the return window. Eligible rings are resized free. Reia's lifetime policy gives 100% of the diamond value on exchange and 70% on buyback, with gold valued at prevailing rates.

Frequently Asked Questions

Q.1 What is a trillion-cut lab-grown diamond engagement ring? 

An engagement ring with triangular laboratory-grown diamonds, either as the centre stone or as a matched pair of side stones. Every Reia ring is made in BIS-hallmarked gold with IGI or SDI-certified diamonds.

Q.2 How do I buy trillion-cut lab-grown diamond engagement rings online in India? 

Browse the designs above, or book a design consultation to have one made. You approve a free CAD visual before anything is made, and Cash on Delivery is available.

Q.3 Is a trillion the same as a trilliant? 

Yes. Trillion, trilliant and trillian are names for the same triangular diamond cut.

Q.4 Do trillion-cut diamonds sparkle? 

Yes. Most trillions are brilliant cuts, so they sparkle strongly. Because they're shallow, they also look large for their carat weight.

Q.5 Are trillion diamonds durable enough for an engagement ring? 

Yes, with the right setting. Diamonds are 10 on the Mohs scale, but sharp corners can chip if knocked. A bezel or V-prongs that protect each point make a trillion ring practical for daily wear.

Q.6 What centre stone goes with trillion side stones? 

Round and oval are the most popular. Emerald and cushion cuts also work well for a contrasting look.

Q.7 How is a trillion-dollar engagement ring priced? 

Diamonds are priced at a flat ₹35,000 per carat across all stones. The final price adds gold weight and making charges.

Q.8 Can I exchange my ring later? 

Yes. Reia gives 100% of the diamond value on exchange and 70% on buyback for life.