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Round|Natural|IGI

1.23ct J VS1 Round Natural Diamond

EX • J/VS1 • IGI 670478960

Shape and cutting style on the report: Round brilliant

Certificate IGI 670478960

Diamond specifications and retailer prices

From $3,821 NZD
As of November 6, 2026
Save $3,371 NZD (47%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,803 NZD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1.23ct natural round diamond

This 1.23ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 670478960. Listed at 14 retailers as of November 2, 2026, with a 88% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
J
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.3°
OriginNatural
Grading LabIGI
CertificateIGI 670478960
Dimensions6.84 × 6.80 × 4.29 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.84 mm6.80 mm1.23 ctJ / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 670478960
Side View
Table 57.0%Crown 34.9°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.9%

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: $8,803 NZD|Low: $3,711 NZD|High: $8,803 NZD|Avg: $5,118 NZD|+2.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6$3,806 NZD
Retailer 5$3,821 NZD
Retailer 3$3,913 NZD
Retailer 8$4,106 NZD
Retailer 4$4,558 NZD
Retailer 7$4,706 NZD
Retailer 9$4,955 NZD
Retailer 10$5,096 NZD
Retailer 2$7,192 NZD
NZ Jewellers$8,803 NZD

26 data points across 10 retailers

14 retailers$3,821 NZD to $7,192 NZD

Retailer 1
-
$3,806 NZD
Price last confirmed 13 days ago
A
Retailer 2
-
$3,821 NZD
View
A
Retailer 3
-
$3,913 NZD
View
Retailer 4
-
$4,006 NZD
View
Price last confirmed 102 days ago
Retailer 5
-
$4,106 NZD
View
Price last confirmed 44 days ago
Retailer 6
-
$4,106 NZD
View
Price last confirmed 15 days ago
Retailer 7
-
$4,210 NZD
View
Price last confirmed 21 days ago
A
Retailer 8
-
$4,558 NZD
View
A
Retailer 9
-
$4,706 NZD
View
Retailer 10
-
$4,739 NZD
View
Price last confirmed 45 days ago
Retailer 11
-
$4,955 NZD
View
Price last confirmed 15 days ago
B
Retailer 12
-
$7,192 NZD
View
Retailer 13
-
$8,585 NZD
View
Price last confirmed 46 days ago
Most Expensive
NZ Jewellers
92be908b-536e-4fb8-a6af-c096640deb34 · Oct 20
$8,803 NZD
$4,880 USD
View
Price last confirmed 17 days ago
13 more retailers have this diamond
Prices start from $3,821 NZDSave up to $3,371 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
1.23ct Round
$3,821 NZD