Updated 15 October 2026
A round brilliant is the classic engagement diamond: 57 facets cut to return light with a bright, even sparkle from every angle. A 1 carat round measures about 6.5 mm across. At Nivara a 1 carat diamond is ₹50,000, with the gold and setting added, and the rings below show how the same stone looks in eight settings.
Why a round brilliant
- It is built for light. The 57 facets are arranged to return light through the top of the stone, which gives the round its bright, lively sparkle.
- It is easy to live with. A circle has no corners to catch on a sleeve, so it suits a ring you wear every day.
- It suits every setting. Solitaire, halo, pave band, side stones: the round sits well in all of them.
- It is the reference shape. Carat charts, size guides and price lists are written for rounds first, so it is the easiest stone to compare.
Choosing between shapes? Our guide to diamond shapes sets them out, and the solitaire rings for women guide covers the single stone design in depth.
Round diamond sizes in mm
| Carat | Diameter, about | Diamond price at Nivara |
|---|---|---|
| 0.25 ct | 4.1 mm | ₹12,500 |
| 0.50 ct | 5.2 mm | ₹25,000 |
| 0.75 ct | 5.8 mm | ₹37,500 |
| 1.00 ct | 6.5 mm | ₹50,000 |
| 1.50 ct | 7.4 mm | ₹75,000 |
| 2.00 ct | 8.2 mm | ₹1,00,000 |
| 2.50 ct | 8.8 mm | ₹1,25,000 |
| 3.00 ct | 9.4 mm | ₹1,50,000 |
Sizes are for a standard round brilliant, and the IGI report gives each stone's own measurements. Prices are for the diamond alone, VVS clarity and E colour; the gold and setting are added depending on the design. The carat size chart shows each size to scale.
Round cut engagement ring designs
Eight designs from our round solitaire rings. Prices are for 14k gold and move with the gold rate. Every ring is made to order in 14k or 18k gold, and each product page lists the gold colours that design comes in. Weights marked "in all" are the total for every diamond in the ring, so the centre stone alone weighs less.
Four prong solitaire
Four slim prongs hold the stone high, so light enters from every side. Nothing competes with the diamond.
Amora round solitaire, from around ₹49,000. A 0.50 carat round in four prongs on a slim yellow gold band.
Amara classic solitaire, from around ₹50,000. A 0.54 carat round on a slim white gold band that curves up to the prongs.
Six prong solitaire
Six prongs hold the round at more points and give it a fuller circle from above.
Amara ribbon band solitaire, from around ₹92,000. A 0.80 carat round in six prongs, with the white gold band opening into three twisting strands.
Amora beaded band solitaire, from around ₹1,38,000. A round in prongs on a yellow gold band edged with fine gold beads, 1.60 carat in all.
The halo
A circle of small diamonds follows the round's outline and makes the centre read larger and brighter. More designs in our guide to halo engagement rings.
Sol round halo, from around ₹1,01,000. A round in a halo of small diamonds on a plain yellow gold band, 1.29 carat in all.
Mira halo with split band, from around ₹1,19,000. A round in a halo of small diamonds, with the band splitting into two rows of diamonds, 1.40 carat in all.
Pave band and side stones
Small diamonds along the band carry the sparkle down the finger and make a plain round look finished.
Amara round on a pave band, from around ₹1,24,000. A round in prongs above a thin yellow gold band set with small diamonds.
Amara round with side stones, from around ₹1,16,500. A round in prongs with a row of small diamonds set into each shoulder of the band.
Settings and metal
With a round, the setting decides the mood. Four prongs read light and modern; six prongs read classic; a halo reads bold; a pave band adds sparkle without changing the stone. Every Nivara piece comes with lifetime prong tightening, so the setting stays firm.
For metal, yellow and rose gold give a round a warm glow, and white gold gives a cooler, brighter look. Look at the gold colours against your own skin before you choose. Every Nivara diamond is VVS clarity, E colour and ideal cut, and IGI certified, with the report number laser inscribed on solitaires. If you are comparing jewellers, our guide to the top lab grown diamond brands in India sets out what to ask each one.
Round, oval, cushion or princess
Next to an oval, a round is compact and even where an oval is long and slimming. Next to a cushion, it gives a finer scatter of light where a cushion gives a softer glow. Next to a princess, it trades sharp corners for a circle that suits everyday wear. The right answer is the outline that looks best on your own hand.
See all round solitaire rings, browse our full range of lab grown diamond engagement rings, read our guide to lab grown engagement rings in India, and find the right fit with the engagement ring size guide.
What comes with every piece
- One diamond standard, whatever the budget: VVS clarity, E colour, ideal cut.
- IGI certification, and on solitaires the report number laser inscribed on the stone, so the paper and the diamond are one.
- 14k or 18k BIS hallmarked gold.
- A lifetime exchange at 100% of the current gold and diamond value, and a lifetime buyback at 100% gold and 85% diamond value.
- Lifetime polishing, cleaning and prong tightening, for as long as the piece is worn.
See a round on the hand
A round changes with its setting, its size and the hand that wears it. Book a private viewing and compare settings at our showrooms in Hyderabad, Bangalore, Indore or Ahmedabad. Anywhere else in India or abroad, book a video consultation; we ship to 28 countries. Pieces listed on our website usually take 18 to 20 days to deliver, depending on the design, so ask for the ready date of the exact ring before you plan around a date.
Frequently asked questions
What is a round brilliant cut diamond?
A round brilliant is a circular diamond with 57 facets (58 if you count the tiny flat at the tip), cut to send light back up through the top of the stone. It is the most traditional engagement ring shape, and the one every other shape is compared with.
What size is a 1 carat round diamond?
About 6.5 mm across. A 0.50 carat round is about 5.2 mm, a 1.50 carat about 7.4 mm, a 2 carat about 8.2 mm and a 3 carat about 9.4 mm. At Nivara a 1 carat diamond is ₹50,000 before the gold and setting.
Should I choose four prongs or six prongs for a round diamond?
Four prongs show more of the stone and let in more light, and give a slightly squarer look from above. Six prongs hold the diamond at more points and give a rounder outline. Both are available, so try each on your own hand.
Does a round diamond look bigger than other shapes?
A round of a given weight is compact and even, so it looks neat rather than long. Shapes such as the oval or marquise stretch along the finger for the same weight. Our guide to round brilliant vs oval compares the two side by side.
How much does a round cut engagement ring cost at Nivara?
Every Nivara diamond is priced at ₹50,000 per carat for VVS clarity and E colour, with the gold and setting added. Our Amora four prong round solitaire, 0.50 carat, starts from around ₹49,000 in 14k gold, and prices move with the gold rate.
