A 1-carat lab-grown engagement ring costs about S$1,200 to S$3,300 in Singapore, while a natural 1ct GIA diamond in a simple setting starts around S$4,100. We re-read the prices on the jewellers' own sites on 4 November 2026, when Goldheart had deepened its lab-grown markdown to about 61% off.
A 1-carat engagement ring in Singapore can cost S$1,200 or S$36,000, and the difference is mostly the stone, not the shop.
> Quick view: best overall is Michael Trio (settings 10% off, from S$824); a lab-grown 1ct runs S$1,200-S$3,300, a natural 1ct GIA from about S$4,100. Ask which one you are being quoted before comparing.
How we picked and priced these
We read every price on 27 September 2026, and re-read them on 12 and 25 October and 4 November, from the jewellers' own sites: Michael Trio's settings and ready-to-ship list, Rio's diamond search and casing list, and the product pages behind Love & Co, Goldheart, SK Jewellery and Poh Heng's web stores. Lee Hwa's own store still shows only a Coming Soon page, so its one price is the official Lazada listing we read on 27 September. JannPaul publishes no prices. Two well-known names are missing on purpose: Larry Jewelry's site now carries generic wholesale copy with no Singapore store or prices, and Shiels now trades only in Australia.
Several of these brands share an owner. Love & Co belongs to the SK Jewellery Group; Lee Hwa and Goldheart belong to Aspial. Walking three mall shops can mean two quotes, not three.
What changed on 4 November 2026
- Goldheart's Star Promise went from 50% to about 61% off, so its 1.00ct D VS1 Classic fell from S$2,329 to S$1,814.
- Michael Trio's ready-to-ship Clara is the new floor for a 1ct lab-grown ring, at S$1,191. Its settings stay 10% off from S$824.
- Love & Co's cheapest 1ct Say Love is S$1,799, in one design and ring size. Its wedding band offer now includes 50% off LVC Tresor.
- Poh Heng's Anniversary Sale runs to 11 November, with the Trilogy at S$2,240. Trust solitaire prices did not move.
- Unchanged: Rio's Nora casing at S$720, SK's AllStar Classic Heart (S$2,249), Astral (S$2,329) and Apex (S$3,208), and Michael Trio's Faye Classic (S$1,799) and Classic Heartline (S$2,088). Lee Hwa's Anniversary Soirée ended on 5 October.
Where to buy a wedding ring in Singapore
An engagement ring and a wedding ring are different purchases, and most of these shops sell both. Love & Co lists LVC Tresor bands from S$819, with 50% off them and 20% off its other bands at checkout above S$1,800. Goldheart showed 30% off bands such as an 18K men's band at S$1,706 (was S$2,438). Poh Heng prices its Cherish couple bands to the day's gold rate, and members earn up to 20X points for buying a Trust ring, bands and Si Dian Jin from it within a year. Rio and Michael Trio also sell bands, which helps if you want them to match the setting.
How to choose an engagement ring
- Decide natural or lab-grown first. They look the same to the eye, but a lab-grown 1ct costs S$1,200-S$3,300 here and a natural 1ct GIA stone from about S$3,400 before the setting. Lab-grown resale and upgrade value is much lower; Michael Trio and Rio only offer upgrades on certified natural stones.
- Ask for the certificate, and which lab. GIA is the benchmark for natural stones; lab-grown stones here are mostly IGI. A price for "1ct" without colour, clarity and cut grades is not comparable, and the cheapest ring here (Clara) lists F-G and VS without naming a certificate.
- Colour is where money disappears. Poh Heng's D-colour 1.10ct costs S$36,330; Rio's H-colour 1.01ct costs S$3,383. Most people cannot tell G or H from D once the stone is set.
- Check what the sale covers. Michael Trio's 10% off covers the setting, not the diamond. Goldheart's GH11OFF excludes marked-down rings. SK's checkout codes have not returned since October.
- Get the after-sales terms in writing: free resizing (Michael Trio 60 days, Rio 30 days, Poh Heng charges), cleaning, and the return window.
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