United Kingdom·IGI
Terms not yet verified
Visit Diamond QuarterCarat Hunter · Where to buy diamonds
1.5ct · H · SI1 · Asscher · Lab-grown
Every retailer carrying this exact spec, from our latest listings.
Updated November 6, 2026 · Independent. Zero affiliate revenue.
Market at this spec
Active listings
11
Retailers carrying
4
Price range
NZ$886 to
NZ$16,770
Median confirmed price
NZ$7,856
Certificate mix:IGI 3
Range and median take each diamond at this spec at its cheapest recently confirmed price. They are cohort statistics, not per-retailer pricing claims.
Every retailer that stocks this spec
Ranked by active inventory count. Selection is mechanical, not editorial.
- United States·Founded 2010·Ships to New ZealandTerms not yet verifiedVisit Allurez
- United States·Founded 2004·IGI·30-day returns·Ships to New ZealandTerms read on the retailer’s own site, October 19, 2026Visit B2C Jewels
- United States·Founded 2014Terms not yet verifiedVisit VRAI
Stock counts reflect current listings. Founded and shipping details come from public sources. Return terms are our summary of each retailer's own policy page, dated per retailer above. Retailers change their terms, so check the retailer's own returns and shipping pages before you buy.
How pricing is spread at this spec
For the 11 diamonds at this spec with a recently confirmed price, each taken at its cheapest confirmed price, the distribution looks like this:
- Lowest confirmedNZ$886
- 10th percentileNZ$1,163
- MedianNZ$7,856
- 75th percentileNZ$10,981
- 90th percentileNZ$16,638
- Highest confirmedNZ$16,770
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 confirmed prices start around NZ$1,163. Use the explorer to sort by price.
Sort by priceBest cut quality for the spec?
10 of 11 active listings carry Excellent or Ideal across cut, polish and symmetry.
View top-cut subsetWant None or Faint fluorescence?
10 of 11 are graded None or Faint at this spec.
Shopping from New Zealand?
2 of the 4 retailers with shipping details ship to New Zealand. 2 do not.
What this spec means
- Asscher: a square step cut with cropped corners.
- H colour: near-colourless, with a slight warm tint visible only against a colourless reference.
- SI1 clarity: Slightly Included 1. Inclusions noticeable at 10x. Often still eye-clean depending on placement.
- Lab-grown: chemically identical to natural diamonds, typically at least 90% less than a comparable natural cohort from 1 carat up.
Compare the top retailers carrying this spec
Side-by-side facts for the two stores carrying the most 1.5ct H SI1 asscher lab grown diamonds.
Compare Diamond Quarter vs AllurezRelated specs
Slightly smaller carat
asscher-1-25ct-h-si1-lab
Slightly larger carat
asscher-2ct-h-si1-lab
One colour grade higher
asscher-1-5ct-g-si1-lab
One colour grade lower
asscher-1-5ct-i-si1-lab
One clarity grade higher
asscher-1-5ct-h-vs2-lab
One clarity grade lower
asscher-1-5ct-h-si2-lab
Same spec, natural
asscher-1-5ct-h-si1-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?
Listings refresh as we re-read each retailer, most of them every day. 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.