Round|Natural|GIA

1.03ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2497177228

Certificate GIA 2497177228

Diamond specifications and retailer prices

From $2,792 NZD
As of November 6, 2026
Save $2,911 NZD (51%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,786 NZD at NZ Jewellers · As of September 28, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2497177228. Listed at 13 retailers as of November 4, 2026, with a 104% 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2497177228
Dimensions6.44 × 6.41 × 3.98 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.44 mm6.41 mm1.03 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2497177228
Side View
Table 58.0%Crown 36°Girdle: ThickPavilion 40.6°Culet: NoneDepth 62.0%

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: $3,985 NZD|Low: $2,700 NZD|High: $5,780 NZD|Avg: $3,890 NZD|+5.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 5$2,792 NZD
Retailer 7$2,975 NZD
Retailer 8$3,364 NZD
Retailer 6$3,512 NZD
Retailer 3$3,602 NZD
Retailer 1$3,985 NZD
Retailer 9$4,163 NZD
Retailer 2$4,427 NZD
Retailer 4$5,704 NZD

41 data points across 9 retailers

13 retailers$2,792 NZD to $5,704 NZD

A
Cheapest Retailer
-
$2,792 NZD
A
Retailer 2
-
$2,975 NZD
View
Retailer 3
-
$3,191 NZD
View
Price last confirmed 29 days ago
Retailer 4
-
$3,339 NZD
View
Price last confirmed 38 days ago
B+
Retailer 5
-
$3,364 NZD
View
B+
Retailer 6
-
$3,512 NZD
View
B+
Retailer 7
-
$3,602 NZD
View
Retailer 8
-
$3,684 NZD
View
Price last confirmed 38 days ago
B+
Retailer 9
-
$3,985 NZD
View
Retailer 10
-
$4,163 NZD
View
Price last confirmed 32 days ago
B
Retailer 11
-
$4,427 NZD
View
B
Retailer 12
-
$5,704 NZD
View
Most Expensive
NZ Jewellers
aacb12da-af33-44e7-8bc4-44ee2ea07698 · Sep 28
$7,786 NZD
$4,316 USD
View
Price last confirmed 39 days ago
12 more retailers have this diamond
Prices start from $2,792 NZDSave up to $2,911 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
$2,792 NZD