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Oval|Natural|IGI

1.23ct J SI1 Oval Natural Diamond

VG • J/SI1 • IGI 747550042

Shape and cutting style on the report: Oval brilliant

Certificate IGI 747550042

Diamond specifications and retailer prices

From $1,646 USD
As of November 2, 2026
Save $2,472 USD (60%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $4,118 USD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.23ct natural oval diamond

This 1.23ct natural oval sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 747550042. Listed at 7 retailers as of November 2, 2026, with prices from $1,646 to $4,118, a $2,472 spread on the same certified stone. NZ Jewellers lists it at $4,118. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.23
Carat
J
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle37.1°
OriginNatural
Grading LabIGI
CertificateIGI 747550042
Dimensions8.62 × 5.74 × 3.72 mm
L/W Ratio1.50
Girdle conditionFaceted
Culet sizePointed
Top View
8.62 mm5.74 mm1.23 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 747550042
Side View
Table 59.0%Crown 38.4°Girdle: MED-THKPavilion 37.1°Culet: NoneDepth 64.8%

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 2
Current: $4,118 USD|Low: $1,603 USD|High: $4,217 USD|Avg: $2,308 USD|-2.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 4$1,646 USD
Retailer 2$1,653 USD
Retailer 7$1,688 USD
Retailer 6$1,766 USD
Retailer 3$1,775 USD
Retailer 5$2,957 USD
NZ Jewellers$4,118 USD

41 data points across 7 retailers

7 retailers$1,646 USD to $4,118 USD

A
Cheapest Retailer
-
$1,646 USD
A
Retailer 2
-
$1,653 USD
View
A
Retailer 3
-
$1,688 USD
View
B+
Retailer 4
-
$1,766 USD
View
A
Retailer 5
-
$1,775 USD
View
B
Retailer 6
-
$2,957 USD
View
Most Expensive
B
NZ Jewellers
73c26d6c-d7c4-4129-ab6a-991a45b7109b · Nov 2
$4,118 USD
View
6 more retailers have this diamond
Prices start from $1,646 USDSave up to $2,472 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 Oval
$1,646 USD