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Prices checked on October 27, 2026. At Ronora, a lab grown diamond engagement ring with a 1 carat center stone starts at $1,120 in 14K gold, a 2 carat ring at $1,510 and a 3 carat ring at $1,880, all with an oval center. A round center starts at $1,200 for 1 carat and $1,980 for 3 carats. The same ring in platinum costs $150 to $350 more.
These are our regular prices in US dollars for one ring, made to order. Every diamond is graded VVS-VS clarity (VVS1 or VVS2 wherever available, VS1 only when neither is), D-E-F colorless and Excellent cut. If a seasonal offer is running, the product page will show the lower price. Below you will find the lowest price for each shape and carat with the ring behind it, prices for stud earrings and tennis bracelets, and what moves the number up or down.
For each center stone shape and size, this table shows our lowest regular price and the ring that sets it. Carat here means the center stone only. Any small diamonds in a halo or along the band are extra weight, and they are already included in the price.
| Center stone shape | Center carat | 14K gold, from | Platinum, from | Ring behind the price |
|---|---|---|---|---|
| Round | 1 ct | $1,200 | $1,440 | Round Pave Tulip Prong Ring (platinum: Round Twist Solitaire) |
| Round | 1.5 ct | $1,420 | $1,620 | Round Pave Tulip Prong Ring (platinum: Round Twist Solitaire) |
| Round | 2 ct | $1,600 | $1,800 | Round Bridal Side Stone Ring |
| Round | 3 ct | $1,980 | $2,180 | Round Twist Solitaire |
| Oval | 1 ct | $1,120 | $1,290 | Oval Hidden Halo Solitaire (platinum: Oval Side Stone Ring) |
| Oval | 1.5 ct | $1,320 | $1,470 | Oval Side Stone Ring |
| Oval | 2 ct | $1,510 | $1,660 | Oval Side Stone Ring |
| Oval | 3 ct | $1,880 | $2,030 | Oval Side Stone Ring |
| Emerald | 1 ct | $1,390 | $1,630 | Emerald Cut Three Stone Ring |
| Emerald | 1.5 ct | $1,590 | $1,830 | Emerald Cut Three Stone Ring |
| Emerald | 2 ct | $1,790 | $2,030 | Emerald Cut Three Stone Ring |
| Emerald | 3 ct | $2,180 | $2,430 | Emerald Cut Three Stone Ring |
| Pear | 1 ct | $1,390 | $1,620 | East West Pear Ring |
| Pear | 1.5 ct | $1,600 | $1,830 | East West Pear Ring |
| Pear | 2 ct | $1,810 | $2,040 | East West Pear Ring |
| Pear | 3 ct | $2,220 | $2,440 | Pear Three Stone Ring |
| Marquise | 1 ct | $1,350 | $1,620 | Marquise Bezel Ring |
| Marquise | 1.5 ct | $1,550 | $1,810 | Marquise Bezel Ring |
| Marquise | 2 ct | $1,750 | $2,010 | Marquise Bezel Ring |
| Marquise | 3 ct | $2,140 | $2,410 | Marquise Bezel Ring |
| Radiant | 1 ct | $1,550 | $1,800 | Radiant Three Stone Ring |
| Radiant | 1.5 ct | $1,750 | $2,000 | Radiant Halo Ring |
| Radiant | 2 ct | $1,930 | $2,190 | Radiant Halo Ring |
| Radiant | 3 ct | $2,300 | $2,560 | Radiant Halo Ring |
| Dutch marquise | 1 ct | $1,480 | $1,750 | Dutch Marquise Halo Ring |
| Dutch marquise | 1.5 ct | $1,660 | $1,940 | Dutch Marquise Halo Ring |
| Dutch marquise | 2 ct | $1,670 | $1,900 | Dutch Marquise Solitaire |
| Dutch marquise | 3 ct | $2,060 | $2,290 | Dutch Marquise Solitaire |
Only colorless center stones are listed. Fancy colored lab grown diamonds, such as yellow, pink and green, are priced separately. Browse by size: 1 carat, 1.5 carat, 2 carat and 3 carat engagement rings. Or browse by shape: round, oval, emerald, pear, marquise, radiant and Dutch marquise.
Not sure how big each size looks? Our guides to how big a 1 carat diamond is and how big a 2 carat diamond is show the sizes in millimeters.
Oval Hidden Halo SolitaireFrom $570 in 925 silver
Round Pave Tulip Prong RingFrom $640 in 925 silver
Emerald Cut Three Stone RingFrom $720 in 925 silver
East West Pear RingFrom $590 in 925 silver
Regular prices, checked on October 27, 2026.
Stud earrings are sold as a pair, and the carat weight is the total for both earrings. A 1 carat pair holds two half carat diamonds. Each cell shows the 14K gold price first, then platinum.
| Pair total carat | Each stone | Round, four prong | Emerald cut | Cushion or trillion |
|---|---|---|---|---|
| 0.5 ct | 0.25 ct | $930 / $1,240 | $1,430 / $1,690 | $1,170 / $1,380 |
| 1 ct | 0.5 ct | $1,160 / $1,470 | $1,730 / $1,980 | $1,370 / $1,580 |
| 1.5 ct | 0.75 ct | $1,390 / $1,710 | $2,020 / $2,270 | Not offered |
| 2 ct | 1 ct | $1,610 / $1,940 | $2,310 / $2,560 | $1,670 / $1,880 |
| 3 ct | 1.5 ct | $1,960 / $2,300 | $2,890 / $3,150 | $1,960 / $2,170 |
Cushion and trillion studs are not made as a 1.5 carat pair. To see how each size sits on the ear, try our stud size on ear tool, read the stud earrings guide, or shop all lab grown diamond stud earrings.
A tennis bracelet's carat weight depends on its length, because a longer bracelet holds more diamonds. These are the prices at 6.5 and 7 inches. Longer lengths hold more carats and cost more.
| Tennis bracelet | Length | Total carat | 14K gold, from | Platinum, from |
|---|---|---|---|---|
| Dainty Round Tennis Bracelet | 6.5 inch | about 2 ct | $2,420 | $3,030 |
| Emerald Cut Tennis Bracelet | 6.5 inch | 4.18 ct | $3,030 | $3,460 |
| Emerald Cut Tennis Bracelet | 7 inch | 4.5 ct | $3,190 | $3,640 |
| Pear Tennis Bracelet | 6.5 inch | 7.89 ct | $4,130 | $4,630 |
| Pear Tennis Bracelet | 7 inch | 8.5 ct | $4,380 | $4,910 |
| Round Tennis Bracelet | 6.5 inch | 7.43 ct | $4,700 | $5,290 |
| Round Tennis Bracelet | 7 inch | 8 ct | $4,980 | $5,620 |
The dainty round bracelet carries about 2 carats at 6.5 inches, and its longer lengths hold more diamonds. Measure your wrist with our tennis bracelet size guide, read the tennis bracelet guide, or see all lab grown diamond bracelets.
A bigger center stone costs more, but less than many people expect. Our Oval Solitaire in 14K gold is $1,200 at 1 carat, $1,390 at 1.5 carats, $1,590 at 2 carats and $1,970 at 3 carats. Going from 1 carat to 3 carats adds $770.
Metal can move the price as much as carat. The same 1.5 carat Oval Solitaire costs $740 in 925 sterling silver, $1,120 in 9K gold, $1,390 in 14K gold, $1,580 in platinum and $1,770 in 18K gold. White, yellow and rose gold cost the same within each karat. At Ronora, platinum costs more than 14K gold but less than 18K gold on almost every ring. Our 14K vs 18K gold guide and platinum guide explain how the metals wear.
Halos, pave bands and side stones add small diamonds and more hand work, but the design and the amount of metal matter just as much. With a 2 carat oval center in 14K gold, our Oval Side Stone Ring is $1,510, the Oval Hidden Halo Solitaire $1,580, the plain Oval Solitaire $1,590 and the Oval Pave Solitaire $1,670. Our three piece bridal set with two matching bands is $2,850.
Shown: Oval Side Stone Ring, from $650 in 925 silver.
At 1 carat in 14K gold, oval starts lowest at $1,120, then round at $1,200, marquise at $1,350, emerald and pear at $1,390, Dutch marquise at $1,480 and radiant at $1,550. Elongated shapes such as oval, marquise and pear also look longer on the finger than a round of the same weight.
Every price in this guide is for the same grades: VVS-VS clarity, D-E-F colorless and Excellent cut. We do not lower the grade to reach a lower price, so the differences you see come from carat, metal, shape and design.
We make every piece in our own workshop in Surat, India, where we have made jewelry since March 2018. Our lab grown diamonds are grown by our lab grown diamond partner, then cut and polished in our own diamond company in Surat, and we set them by hand.
Lab grown diamonds cost far less than they did a few years ago. Industry analyst Edahn Golan reports that the retail price of a 1 carat lab grown diamond fell by more than 76% between early 2020 and mid 2025, and a 2 carat by 80%. At wholesale, a 1 carat stone went from about $1,800 per carat in mid 2018 to about $80 per carat by mid 2026 (Edahn Golan, Lab-Grown Diamond Statistics).
The fall is slowing down. Wholesale prices dropped 26% over 2025, but the drop in the last quarter of 2025, 4.7%, was the smallest so far (Edahn Golan, lab grown wholesale prices in 2025). For context, BriteCo's appraisal data put the median lab grown engagement ring at $4,557 in 2025 (BriteCo).
One honest note: because new lab grown diamonds keep getting cheaper, their resale value is low. Choose one because you love the ring, not as an investment.
Questions? WhatsApp us about size, metal or price for any piece in this guide.
At Ronora, a 1 carat lab grown diamond engagement ring starts at $1,120 in 14K gold with an oval center and $1,200 with a round center. In platinum it starts at $1,290. Prices checked on October 27, 2026.
A 2 carat ring starts at $1,510 in 14K gold with an oval center and $1,600 with a round center. In platinum it starts at $1,660. See all 2 carat lab grown diamond engagement rings.
A 3 carat ring starts at $1,880 in 14K gold with an oval center and $1,980 with a round center. In platinum it starts at $2,030. See all 3 carat lab grown diamond engagement rings.
At Ronora, platinum costs more than 14K gold, adding $150 to $350 on the rings in this guide, but less than 18K gold on almost every ring. White, yellow and rose gold cost the same within each karat.
They have fallen for years, but more slowly now. Wholesale prices dropped 26% in 2025, and the last quarter of 2025 had the smallest drop so far, 4.7%, according to analyst Edahn Golan. Nobody can promise where prices go next, so buy a lab grown diamond for the ring itself, not as an investment.
Because the metal, the setting and the design change the price as much as the diamond does. With the same 2 carat round center in 14K gold, our Round Twist Solitaire is $1,610, while our Round Two Tone Solitaire, with interlocking white and yellow gold shoulders, is $3,180.
