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Carat Hunter · Where to buy diamonds

0.5ct · G · VS1 · Marquise · Lab-grown

Live snapshot of every retailer carrying this exact spec today.

Updated June 3, 2026 · Independent. Zero affiliate revenue.

Market at this spec

Active listings

328

Retailers carrying

23

Price range

SGD 188 to
SGD 2,497

Median active price

SGD 509

Certificate mix:IGI 292 · GCAL 1

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 13 more retailers

Stock counts are updated daily. Founded, return window and shipping details are retailer-provided and were last verified March 7, 2026.

Explore all 328 stones in this cohort

How pricing is spread at this spec

For all 328 active listings at this spec, the price distribution looks like this:

  • Lowest active
    SGD 188
  • 10th percentile
    SGD 357
  • Median
    SGD 509
  • 75th percentile
    SGD 727
  • 90th percentile
    SGD 1,285
  • Highest active
    SGD 2,497

The 13.3x 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 357. Use the explorer to sort by price.

Sort by price

Best cut quality for the spec?

47 of 328 active listings carry Excellent or Ideal across cut, polish and symmetry.

View top-cut subset

Want None or Faint fluorescence?

296 of 328 are graded None or Faint at this spec.

What this spec means

  • Marquise: a pointed-end ellipse, faces up large for its carat.
  • G colour: near-colourless, one step below the D-F band, virtually no perceptible colour to most buyers.
  • VS1 clarity: very slight inclusions, eye-clean to virtually everyone.
  • 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 0.5ct G VS1 marquise lab grown diamonds.

Compare Loose Grown Diamond vs B2C Jewels

Related specs

Slightly larger carat

marquise-0-75ct-g-vs1-lab

One colour grade higher

marquise-0-5ct-f-vs1-lab

One colour grade lower

marquise-0-5ct-h-vs1-lab

One clarity grade higher

marquise-0-5ct-g-vvs2-lab

One clarity grade lower

marquise-0-5ct-g-vs2-lab

Same spec, natural

marquise-0-5ct-g-vs1-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 0.5ct G VS1 Marquise Lab Grown Diamonds | Carat Hunter