FACETWIREPrice IntelligenceNatural Diamonds, Compared at Last: the $6,259 Radiant
Facet Wire tracks 2,149 live diamond listings across ten retailers, refreshed nightly. For as long as we have run the comparison engine, it matched lab-grown stones by the hundred and natural stones not at all. Tonight it produced the first five natural-diamond pairs in our data — and the widest single price gap we have ever recorded belongs to one of them.
The radiant
A natural radiant, E color, VVS2 clarity, Very Good cut. With Clarity lists a 1.08 ct stone at $4,267. Blue Nile lists the same shape, color, clarity and cut grade at 1.15 ct for $10,526. Under our matching rules — identical shape, color and clarity, carat within a tenth — that is a pair, and the spread is $6,259. Blue Nile's price is about two and a half times With Clarity's.
It is not the extra 0.07 ct talking. Per carat, the With Clarity stone runs $3,951; the Blue Nile stone runs $9,153. A buyer who found the second listing first and stopped looking would pay roughly six thousand dollars more for the same paper specs. Until today, the biggest gap on our board was a lab-grown pear at $4,357. A natural stone holds the record now — tonight's full board is on the live gap page.
Why natural took this long
A comparison engine can only match what overlaps. Natural inventory online is fragmented by size: this morning's census of our tracked set found one major retailer's natural stones clustered between 0.19 and 0.71 ct while another's started at 1.00 ct. Zero overlap in size means zero honest pairs, no matter how many stones each store lists. Lab-grown inventory, concentrated in the same 1–3 ct bands at every major retailer, matched immediately — 212 pairs in this morning's data. Naturals sat in silos.
What changed is coverage, deliberately aimed at the same carat bands instead of each store's default front page. Today's expansion took tracked natural listings from 174 to 527 across five retailers — Blue Nile (268), Brian Gavin Diamonds (127), Frank Darling (60), With Clarity (57) and Whiteflash (15). The moment the bands overlapped, the pairs appeared: the five below, inside a sitewide pair count that jumped from 212 to 1,010.
All five natural pairs
Every natural-diamond pair in tonight's data, widest gap first. Prices link to the live listings.
| Stone | Lower price | Higher price | Gap |
|---|---|---|---|
| Radiant 1.08–1.15 ct, E, VVS2 | With Clarity $4,267 | Blue Nile $10,526 | $6,259 |
| Princess 1.70 ct, F, VS1 | Blue Nile $12,652 | With Clarity $15,134 | $2,482 |
| Cushion 1.51–1.54 ct, G, SI1 | Frank Darling $5,137.20 | Blue Nile $7,326 | $2,188.80 |
| Round 1.01–1.02 ct, I, SI1 | With Clarity $2,477 | Whiteflash $3,995 | $1,518 |
| Oval 1.20–1.21 ct, I, SI1 | Frank Darling $3,191.29 | With Clarity $3,493 | $301.71 |
Five pairs is a beginning, not a verdict on any retailer — the sample is small and it grows every night. But notice what even five pairs prove: the spreads are not rounding errors. Four of the five gaps run to four figures. The natural premium is real, and so is the variance inside it.
What this means if you buy natural
"Shop around" finally has data behind it. Natural buyers have been told to compare for years and given no practical way to do it — every retailer's inventory looked different because, by size, it was. Identical-spec pairs turn comparison from advice into arithmetic: same shape, color and clarity, priced at two stores, difference in dollars. Tonight's tracked natural inventory is browsable in our natural diamond search and the natural diamonds hub.
The name on the site is not a price signal. In these five pairs, the biggest name in online diamonds posts the most expensive listing twice — and the cheapest once. There is no store that is simply "the expensive one." There are only stones, specs and prices, and they have to be checked pair by pair.
Per-carat is the honest lens. Matched pairs can differ by up to a tenth of a carat, so check the per-carat math before acting on a gap. In the radiant's case it makes the gap wider, not narrower — which is exactly why both numbers sit side by side in the Diamond Price Index.
How we match, honestly
Facet Wire pairs listings on identical shape, color and clarity, with carat within 0.10 and the same stone type — natural never matches lab. These are spec fingerprints: two listings describing the same kind of stone. They are not proof of the same physical diamond. That proof exists — a certificate number listed at two retailers at once — and across the 1,454 cert-carrying listings we track it has not happened yet: certificate-verified same-stone matches stand at zero, while 636 cert-carrying stones already have an identical-spec twin at another retailer. The first cert match is the next milestone, and it will be the headline when it lands.
Frequently asked questions
Why were there no natural-diamond comparisons before?
Because the inventory did not overlap. Retailers stocked natural stones in different size bands, so no two stores listed the same spec at the same size. Once tracked coverage widened into shared bands — 527 natural listings tonight — the matches appeared immediately.
Is the $10,526 Blue Nile price a mistake?
It is the listed price captured in tonight's sweep, and both listings are linked in the table above so you can check them yourself. Listed prices move; the pair reflects what a buyer would have seen at capture time.
Are the two radiants the same physical diamond?
We do not claim that. They are an identical-spec match — same shape, color, clarity and cut grade, within 0.07 ct of each other. Same-stone proof requires the same certificate number at both retailers, which has not occurred in our data yet.
Keep reading: The $954 Pear: Ritani vs Ada · Frank Darling vs With Clarity vs MiaDonna · Browse diamonds by shape
Data: live retailer listings tracked by Facet Wire (2,149 listings across 10 retailers), captured 2026-10-17 and refreshed nightly. Prices are the retailers' listed prices at capture time. Pairs match identical shape, color and clarity with carat within 0.10 — spec matches, not certificate-verified same-stone matches.