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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 $3,268 SGD
$2,556 USD
As of November 1, 2026
Save $4,362 SGD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,629 SGD 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $7,629 SGD|Low: $3,268 SGD|High: $7,828 SGD|Avg: $4,405 SGD
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$3,268 SGD
Retailer 9$3,319 SGD
Retailer 7$3,573 SGD
Retailer 8$3,649 SGD
Retailer 11$3,649 SGD
Retailer 2$3,948 SGD
Retailer 4$4,254 SGD
Retailer 10$4,270 SGD
Retailer 5$4,485 SGD
Retailer 6$6,428 SGD
NZ Jewellers$7,629 SGD

39 data points across 11 retailers

18 retailers$3,268 SGD to $7,629 SGD

A
Cheapest Retailer
-
$3,268 SGD
$2,556 USD
A
Retailer 2
-
$3,319 SGD
$2,596 USD
View
Retailer 3
-
$3,530 SGD
$2,761 USD
View
Price last confirmed 98 days ago
A
Retailer 4
-
$3,573 SGD
$2,795 USD
View
Retailer 5
-
$3,649 SGD
$2,854 USD
View
Price last confirmed 51 days ago
Retailer 6
-
$3,649 SGD
$2,854 USD
View
Price last confirmed 39 days ago
A
Retailer 7
-
$3,649 SGD
$2,854 USD
View
A
Retailer 8
-
$3,649 SGD
$2,854 USD
View
A
Retailer 9
-
$3,948 SGD
£2,431 GBP
View
Retailer 10
-
$4,211 SGD
$3,294 USD
View
Price last confirmed 56 days ago
Retailer 11
-
$4,211 SGD
$3,294 USD
View
Price last confirmed 41 days ago
A
Retailer 12
-
$4,254 SGD
€3,169 EUR
View
A
Retailer 13
-
$4,270 SGD
£2,630 GBP
View
B+
Retailer 14
-
$4,485 SGD
ZAR 56,683 ZAR
View
B
Retailer 15
-
$6,428 SGD
£3,959 GBP
View
Retailer 16
-
$7,629 SGD
$5,968 USD
View
Price last confirmed 52 days ago
B
Retailer 17
-
$7,629 SGD
$5,968 USD
View
Most Expensive
NZ Jewellers
89f197e9-43bb-453c-ac5d-c579ccc2a5d9 · Sep 21
$7,629 SGD
$5,968 USD
View
Price last confirmed 41 days ago
17 more retailers have this diamond
Prices start from $3,268 SGDSave up to $4,362 SGD

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
$3,268 SGD