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Radiant|Natural|GIA

1.03ct K SI1 Radiant Natural Diamond

ID • K/SI1 • GIA 2231920037

Certificate GIA 2231920037

Diamond specifications and retailer prices

From $2,390 NZD
As of November 7, 2026
Save $2,150 NZD (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,045 NZD at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.03ct natural radiant diamond

This 1.03ct natural radiant sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2231920037. Listed at 13 retailers as of November 1, 2026, with a 90% 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

1.03
Carat
K
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2231920037
Dimensions6.50 × 4.99 × 3.51 mm
L/W Ratio1.30
Culet sizeNone
Key to symbols
Twinning Wisp, Needle
Top View
6.50 mm4.99 mm1.03 ctK / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2231920037
Side View
Table 68.0%CrownGirdlePavilionCulet: NoneDepth 70.3%

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 7
Current: $2,735 NZD|Low: $2,390 NZD|High: $4,595 NZD|Avg: $3,045 NZD|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 7$2,390 NZD
Retailer 2$2,405 NZD
Retailer 6$2,479 NZD
Retailer 1$2,735 NZD
Retailer 4$3,025 NZD
Retailer 3$3,436 NZD
Retailer 5$4,540 NZD

38 data points across 7 retailers

13 retailers$2,390 NZD to $4,540 NZD

A
Cheapest Retailer
-
$2,390 NZD
A
Retailer 2
-
$2,405 NZD
View
Retailer 3
-
$2,479 NZD
View
Price last confirmed 30 days ago
Retailer 4
-
$2,479 NZD
View
Price last confirmed 30 days ago
Retailer 5
-
$2,479 NZD
View
Price last confirmed 13 days ago
Retailer 6
-
$2,592 NZD
View
Price last confirmed 37 days ago
A
Retailer 7
-
$2,735 NZD
View
Retailer 8
-
$2,782 NZD
View
Price last confirmed 67 days ago
Retailer 9
-
$2,859 NZD
View
Price last confirmed 39 days ago
B+
Retailer 10
-
$3,025 NZD
View
B+
Retailer 11
-
$3,436 NZD
View
B
Retailer 12
-
$4,540 NZD
View
Most Expensive
NZ Jewellers
1d75307d-50ea-46b7-9542-c604b043400e · Sep 29
$6,045 NZD
$3,351 USD
View
Price last confirmed 38 days ago
12 more retailers have this diamond
Prices start from $2,390 NZDSave up to $2,150 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
1.03ct Radiant
$2,390 NZD