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Round|Natural|IGI

1.23ct J IF Round Natural Diamond

EX • J/IF • IGI 627491779

Shape and cutting style on the report: Round brilliant

Certificate IGI 627491779

Diamond specifications and retailer prices

From $4,543 NZD
$2,556 USD
As of November 1, 2026
Save $6,064 NZD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $10,607 NZD at NZ Jewellers · As of September 21, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 627491779. Listed at 18 retailers as of October 30, 2026, with a 133% 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 627491779
Dimensions6.96 × 6.88 × 4.19 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.96 mm6.88 mm1.23 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 627491779
Side View
Table 59.0%Crown 34.3°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.6%

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 1
Current: $10,607 NZD|Low: $4,543 NZD|High: $10,882 NZD|Avg: $6,123 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 3$4,543 NZD
Retailer 9$4,614 NZD
Retailer 7$4,968 NZD
Retailer 8$5,072 NZD
Retailer 11$5,072 NZD
Retailer 2$5,488 NZD
Retailer 4$5,914 NZD
Retailer 10$5,936 NZD
Retailer 5$6,236 NZD
Retailer 6$8,936 NZD
NZ Jewellers$10,607 NZD

39 data points across 11 retailers

18 retailers$4,543 NZD to $10,607 NZD

A
Cheapest Retailer
-
$4,543 NZD
$2,556 USD
A
Retailer 2
-
$4,614 NZD
$2,596 USD
View
Retailer 3
-
$4,907 NZD
$2,761 USD
View
Price last confirmed 98 days ago
A
Retailer 4
-
$4,968 NZD
$2,795 USD
View
Retailer 5
-
$5,072 NZD
$2,854 USD
View
Price last confirmed 52 days ago
Retailer 6
-
$5,072 NZD
$2,854 USD
View
Price last confirmed 40 days ago
A
Retailer 7
-
$5,072 NZD
$2,854 USD
View
A
Retailer 8
-
$5,072 NZD
$2,854 USD
View
A
Retailer 9
-
$5,488 NZD
£2,431 GBP
View
Retailer 10
-
$5,854 NZD
$3,294 USD
View
Price last confirmed 56 days ago
Retailer 11
-
$5,854 NZD
$3,294 USD
View
Price last confirmed 41 days ago
A
Retailer 12
-
$5,914 NZD
€3,169 EUR
View
A
Retailer 13
-
$5,936 NZD
£2,630 GBP
View
B+
Retailer 14
-
$6,236 NZD
ZAR 56,683 ZAR
View
B
Retailer 15
-
$8,936 NZD
£3,959 GBP
View
Retailer 16
-
$10,607 NZD
$5,968 USD
View
Price last confirmed 53 days ago
B
Retailer 17
-
$10,607 NZD
$5,968 USD
View
Most Expensive
NZ Jewellers
89f197e9-43bb-453c-ac5d-c579ccc2a5d9 · Sep 21
$10,607 NZD
$5,968 USD
View
Price last confirmed 41 days ago
17 more retailers have this diamond
Prices start from $4,543 NZDSave up to $6,064 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
$4,543 NZD