Radiant|Natural|GIA

1.01ct D SI1 Radiant Natural Diamond

ID • D/SI1 • GIA 2557812240

Certificate GIA 2557812240

Diamond specifications and retailer prices

From $4,246 NZD
As of November 6, 2026
Save $4,122 NZD (49%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $10,320 NZD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.01ct natural radiant diamond

This 1.01ct natural radiant sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557812240. Listed at 16 retailers as of November 4, 2026, with a 97% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.01
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle52.31°
Pavilion angle30.09°
OriginNatural
Grading LabGIA
CertificateGIA 2557812240
Dimensions4.69 × 7.12 × 3.22 mm
L/W Ratio1.52
Culet sizeNone
Key to symbols
Crystal, Cloud, Knot, Feather, Needle
Top View
4.69 mm7.12 mm1.01 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2557812240
Side View
Table 67.0%Crown 52.31°Girdle: STK-THKPavilion 30.09°Culet: NoneDepth 68.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,293 NZD|Low: $3,557 NZD|High: $8,753 NZD|Avg: $5,309 NZD|-11.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 5$4,246 NZD
Retailer 1$4,293 NZD
Retailer 4$4,376 NZD
Retailer 8$4,530 NZD
Retailer 2$4,780 NZD
Retailer 10$4,935 NZD
Retailer 3$5,018 NZD
Retailer 7$5,044 NZD
Retailer 9$5,531 NZD
Retailer 6$8,368 NZD

45 data points across 10 retailers

16 retailers$4,246 NZD to $8,368 NZD

A
Cheapest Retailer
-
$4,246 NZD
A
Retailer 2
-
$4,293 NZD
View
A
Retailer 3
-
$4,376 NZD
View
Final sale: no returns
A
Retailer 4
-
$4,530 NZD
View
A
Retailer 5
-
$4,780 NZD
View
Retailer 6
-
$4,935 NZD
View
Price last confirmed 37 days ago
Retailer 7
-
$4,935 NZD
View
Price last confirmed 22 days ago
A
Retailer 8
-
$5,018 NZD
View
B+
Retailer 9
-
$5,044 NZD
View
Retailer 10
-
$5,127 NZD
View
Price last confirmed 38 days ago
Retailer 11
-
$5,531 NZD
View
Price last confirmed 31 days ago
Retailer 12
-
$5,695 NZD
View
Price last confirmed 62 days ago
Retailer 13
-
$5,695 NZD
View
Price last confirmed 39 days ago
Retailer 14
-
$5,695 NZD
View
Price last confirmed 53 days ago
B
Retailer 15
-
$8,368 NZD
View
Most Expensive
NZ Jewellers
8745b152-c77d-4b17-94a5-a33cef344093 · Sep 30
$10,320 NZD
$5,721 USD
View
Price last confirmed 37 days ago
15 more retailers have this diamond
Prices start from $4,246 NZDSave up to $4,122 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.01ct Radiant
$4,246 NZD