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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 €2,288 EUR
$2,556 USD
As of October 30, 2026
Save €3,054 EUR (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €5,342 EUR 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

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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: €5,342 EUR|Low: €2,288 EUR|High: €5,481 EUR|Avg: €3,081 EUR
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€2,288 EUR
Retailer 9€2,324 EUR
Retailer 7€2,502 EUR
Retailer 8€2,555 EUR
Retailer 11€2,555 EUR
Retailer 4€2,764 EUR
Retailer 10€2,990 EUR
Retailer 5€2,992 EUR
Retailer 2€3,141 EUR
Retailer 6€4,500 EUR
NZ Jewellers€5,342 EUR

39 data points across 11 retailers

18 retailers€2,288 EUR to €5,342 EUR

A
Cheapest Retailer
-
€2,288 EUR
$2,556 USD
A
Retailer 2
-
€2,324 EUR
$2,596 USD
View
Retailer 3
-
€2,471 EUR
$2,761 USD
View
Price last confirmed 96 days ago
A
Retailer 4
-
€2,502 EUR
$2,795 USD
View
Retailer 5
-
€2,555 EUR
$2,854 USD
View
Price last confirmed 50 days ago
Retailer 6
-
€2,555 EUR
$2,854 USD
View
Price last confirmed 38 days ago
A
Retailer 7
-
€2,555 EUR
$2,854 USD
View
A
Retailer 8
-
€2,555 EUR
$2,854 USD
View
A
Retailer 9
-
€2,764 EUR
£2,431 GBP
View
Retailer 10
-
€2,948 EUR
$3,294 USD
View
Price last confirmed 54 days ago
Retailer 11
-
€2,948 EUR
$3,294 USD
View
Price last confirmed 39 days ago
A
Retailer 12
-
€2,990 EUR
£2,630 GBP
View
A
Retailer 13
-
€2,992 EUR
View
B+
Retailer 14
-
€3,141 EUR
ZAR 56,683 ZAR
View
B
Retailer 15
-
€4,500 EUR
£3,959 GBP
View
Retailer 16
-
€5,342 EUR
$5,968 USD
View
Price last confirmed 51 days ago
B
Retailer 17
-
€5,342 EUR
$5,968 USD
View
Most Expensive
NZ Jewellers
89f197e9-43bb-453c-ac5d-c579ccc2a5d9 · Sep 21
€5,342 EUR
$5,968 USD
View
Price last confirmed 40 days ago
17 more retailers have this diamond
Prices start from €2,288 EURSave up to €3,054 EUR

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
€2,288 EUR