Round|Natural|GIA

1.03ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 1553626378

Certificate GIA 1553626378

Diamond specifications and retailer prices

From $3,499 NZD
As of November 5, 2026
Save $6,224 NZD (64%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $9,723 NZD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1553626378. Listed at 27 retailers as of November 5, 2026, with a 178% 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1553626378
Dimensions6.43 × 6.47 × 3.99 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
6.43 mm6.47 mm1.03 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553626378
Side View
Table 56.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.2%

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 5
Current: $4,389 NZD|Low: $3,499 NZD|High: $8,245 NZD|Avg: $5,100 NZD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3$3,499 NZD
Retailer 9$3,807 NZD
Retailer 8$3,889 NZD
Retailer 7$4,214 NZD
Retailer 1$4,389 NZD
Retailer 2$4,892 NZD
Retailer 4$5,490 NZD
Retailer 5$5,769 NZD
Retailer 6$8,126 NZD

37 data points across 9 retailers

27 retailers$3,499 NZD to $9,723 NZD

A
Cheapest Retailer
-
$3,499 NZD
A
Retailer 2
-
$3,807 NZD
View
A
Retailer 3
-
$3,889 NZD
View
Final sale: no returns
Retailer 4
-
$4,214 NZD
View
Price last confirmed 21 days ago
Retailer 5
-
$4,214 NZD
View
Price last confirmed 8 days ago
Retailer 6
-
$4,214 NZD
View
Price last confirmed 50 days ago
Retailer 7
-
$4,214 NZD
View
Price last confirmed 29 days ago
Retailer 8
-
$4,214 NZD
View
Price last confirmed 29 days ago
Retailer 9
-
$4,214 NZD
View
Price last confirmed 15 days ago
B+
Retailer 10
-
$4,298 NZD
View
A
Retailer 11
-
$4,389 NZD
View
Retailer 12
-
$4,408 NZD
View
Price last confirmed 38 days ago
B+
Retailer 13
-
$4,661 NZD
View
B+
Retailer 14
-
$4,661 NZD
View
B+
Retailer 15
-
$4,821 NZD
View
Retailer 16
-
$4,862 NZD
View
Price last confirmed 28 days ago
Retailer 17
-
$4,862 NZD
View
Price last confirmed 45 days ago
Retailer 18
-
$4,862 NZD
View
Price last confirmed 16 days ago
B+
Retailer 19
-
$4,862 NZD
View
B+
Retailer 20
-
$4,892 NZD
View
B+
Retailer 21
-
$5,490 NZD
View
B+
Retailer 22
-
$5,769 NZD
View
B
Retailer 23
-
$8,126 NZD
View
B
Retailer 24
-
$9,723 NZD
View
Retailer 25
-
$9,723 NZD
View
Price last confirmed 39 days ago
Retailer 26
-
$9,723 NZD
View
Price last confirmed 48 days ago
Most Expensive
NZ Jewellers
21707d7a-ed75-4fa4-a5f5-decf48e476b2 · Oct 20
$9,723 NZD
$5,466 USD
View
Price last confirmed 17 days ago
26 more retailers have this diamond
Prices start from $3,499 NZDSave up to $6,224 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 Round
$3,499 NZD