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 $2,556 USD
As of October 30, 2026
Save $3,412 USD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,968 USD 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $5,968 USD|Low: $2,556 USD|High: $6,123 USD|Avg: $3,442 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 3$2,556 USD
Retailer 9$2,596 USD
Retailer 7$2,795 USD
Retailer 8$2,854 USD
Retailer 11$2,854 USD
Retailer 4$3,088 USD
Retailer 10$3,340 USD
Retailer 5$3,342 USD
Retailer 2$3,509 USD
Retailer 6$5,028 USD
NZ Jewellers$5,968 USD

39 data points across 11 retailers

18 retailers$2,556 USD to $5,968 USD

A
Cheapest Retailer
-
$2,556 USD
A
Retailer 2
-
$2,596 USD
View
Retailer 3
-
$2,761 USD
View
Price last confirmed 96 days ago
A
Retailer 4
-
$2,795 USD
View
Retailer 5
-
$2,854 USD
View
Price last confirmed 50 days ago
Retailer 6
-
$2,854 USD
View
Price last confirmed 38 days ago
A
Retailer 7
-
$2,854 USD
View
A
Retailer 8
-
$2,854 USD
View
A
Retailer 9
-
$3,088 USD
£2,431 GBP
View
Retailer 10
-
$3,294 USD
View
Price last confirmed 54 days ago
Retailer 11
-
$3,294 USD
View
Price last confirmed 39 days ago
A
Retailer 12
-
$3,340 USD
£2,630 GBP
View
A
Retailer 13
-
$3,342 USD
€3,183 EUR
View
B+
Retailer 14
-
$3,509 USD
ZAR 56,683 ZAR
View
B
Retailer 15
-
$5,028 USD
£3,959 GBP
View
Retailer 16
-
$5,968 USD
View
Price last confirmed 51 days ago
B
Retailer 17
-
$5,968 USD
View
Most Expensive
NZ Jewellers
89f197e9-43bb-453c-ac5d-c579ccc2a5d9 · Sep 21
$5,968 USD
View
Price last confirmed 39 days ago
17 more retailers have this diamond
Prices start from $2,556 USDSave up to $3,412 USD

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
$2,556 USD