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Round|Natural|GIA

1.20ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2554750922

Certificate GIA 2554750922

Diamond specifications and retailer prices

From $2,949 NZD
As of November 6, 2026
Save $4,111 NZD (58%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $8,525 NZD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2554750922. Listed at 21 retailers as of November 4, 2026, with a 139% 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

1.20
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2554750922
Dimensions6.69 × 6.73 × 4.27 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.69 mm6.73 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2554750922
Side View
Table 56.0%Crown 36°Girdle: THN-STKPavilion 41.2°Culet: NoneDepth 63.7%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $3,274 NZD|Low: $2,931 NZD|High: $7,230 NZD|Avg: $4,177 NZD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 6$2,949 NZD
Retailer 7$3,068 NZD
Retailer 4$3,070 NZD
Retailer 1$3,274 NZD
Retailer 13$3,348 NZD
Retailer 3$3,370 NZD
Retailer 5$3,426 NZD
Retailer 9$3,830 NZD
Retailer 8$4,172 NZD
Retailer 2$4,221 NZD
Retailer 15$4,221 NZD
Retailer 11$4,324 NZD
Retailer 10$4,347 NZD
Retailer 14$4,885 NZD
Retailer 12$5,096 NZD
Retailer 16$7,060 NZD

27 data points across 16 retailers

21 retailers$2,949 NZD to $7,060 NZD

A
Cheapest Retailer
-
$2,949 NZD
Retailer 2
-
$3,068 NZD
View
Price last confirmed 22 days ago
A
Retailer 3
-
$3,070 NZD
View
A
Retailer 4
-
$3,274 NZD
View
A
Retailer 5
-
$3,348 NZD
View
Final sale: no returns
A
Retailer 6
-
$3,370 NZD
View
A
Retailer 7
-
$3,426 NZD
View
A
Retailer 8
-
$3,830 NZD
View
Retailer 9
-
$4,041 NZD
View
Price last confirmed 21 days ago
Retailer 10
-
$4,079 NZD
View
Price last confirmed 29 days ago
Retailer 11
-
$4,172 NZD
View
Price last confirmed 21 days ago
B+
Retailer 12
-
$4,221 NZD
View
B+
Retailer 13
-
$4,221 NZD
View
Retailer 14
-
$4,227 NZD
View
Price last confirmed 22 days ago
B+
Retailer 15
-
$4,324 NZD
View
B+
Retailer 16
-
$4,347 NZD
View
Retailer 17
-
$4,661 NZD
View
Price last confirmed 21 days ago
B+
Retailer 18
-
$4,885 NZD
View
B+
Retailer 19
-
$5,096 NZD
View
B
Retailer 20
-
$7,060 NZD
View
Most Expensive
NZ Jewellers
e55c1379-2256-414d-a26b-5ea956badb91 · Oct 3
$8,525 NZD
$4,726 USD
View
Price last confirmed 34 days ago
20 more retailers have this diamond
Prices start from $2,949 NZDSave up to $4,111 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
1.20ct Round
$2,949 NZD