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Carat Hunter · Where to buy diamonds

1ct · G · IF · Radiant · Lab-grown

Live snapshot of every retailer carrying this exact spec today.

Updated September 14, 2026 · Independent. Zero affiliate revenue.

Market at this spec

Active listings

50

Retailers carrying

22

Price range

SGD 153 to
SGD 9,154

Median active price

SGD 607

Certificate mix:IGI 49

Range and median are cohort statistics across every active listing at this spec. They are not per-retailer pricing claims.

Every retailer that stocks this spec

Ranked by active inventory count. Selection is mechanical, not editorial.

Show 12 more retailers

Stock counts are updated daily. Founded, return window and shipping details are retailer-provided and were last verified June 15, 2026.

Explore all 50 stones in this cohort

Stones at this spec now

Live examples carried by more than one retailer, so the comparison is real. Prices shown in USD.

See every 1ct lab grown radiant diamond, all grades

How pricing is spread at this spec

For all 50 active listings at this spec, the price distribution looks like this:

  • Lowest active
    SGD 153
  • 10th percentile
    SGD 336
  • Median
    SGD 607
  • 75th percentile
    SGD 925
  • 90th percentile
    SGD 1,978
  • Highest active
    SGD 9,154

The 59.7x spread from lowest to highest active price is normal for cohorts at this spec. Differences reflect cert lab, cut quality, brand premium and inclusions visibility.

Cohort distribution only. No retailer named adjacent to a dollar figure in this section.

How to pick

Lowest price floor for the spec?

The cheapest active listings start around SGD 336. Use the explorer to sort by price.

Sort by price

Best cut quality for the spec?

43 of 50 active listings carry Excellent or Ideal across cut, polish and symmetry.

View top-cut subset

Want None or Faint fluorescence?

50 of 50 are graded None or Faint at this spec.

What this spec means

  • Radiant: a rectangular brilliant cut that combines the emerald outline with round-style faceting.
  • G colour: near-colourless, one step below the D to F band, with virtually no perceptible colour to most buyers.
  • IF clarity: internally flawless, with no internal imperfections and surface marks only.
  • Lab-grown: chemically identical to natural diamonds, typically 60% to 80% less than a comparable natural cohort.

Compare the top retailers carrying this spec

Side-by-side facts for the two stores carrying the most 1ct G IF radiant lab grown diamonds.

Compare Brilliant Earth vs Rare Carat

Related specs

Slightly smaller carat

radiant-0-75ct-g-if-lab

Slightly larger carat

radiant-1-25ct-g-if-lab

One colour grade higher

radiant-1ct-f-if-lab

One colour grade lower

radiant-1ct-h-if-lab

One clarity grade higher

radiant-1ct-g-fl-lab

One clarity grade lower

radiant-1ct-g-vvs1-lab

Same spec, natural

radiant-1ct-g-if-natural

Frequently asked

Does Carat Hunter earn commission from these retailers?

No. We earn zero affiliate revenue from any retailer in our index.

How fresh is this data?

Live listings refresh daily. Static facts about each retailer refresh weekly.

Why is one retailer cheaper for the same certificate?

Markup and overhead vary by retailer. The same physical diamond can list at very different prices across stores. See our cross-retailer analysis for the structural reasons.

How is the retailer ranking calculated?

Strictly by active inventory count for this exact spec. The retailer carrying the most stones at the spec ranks first. There is no editorial input, weighting or affiliate consideration.

Why do you not show per-retailer prices on this page?

Prices vary per stone, not per store. Click through to any matched diamond and you will see every retailer's price on the exact same physical stone, which is the meaningful comparison.

Where to Buy 1ct G IF Radiant Lab Grown Diamonds | Carat Hunter