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1.23ct J VVS1 Round Natural Diamond

EX • J/VVS1 • IGI 803629440

Shape and cutting style on the report: Round brilliant

Certificate IGI 803629440

Diamond specifications and retailer prices

From $3,746 SGD
As of November 6, 2026
3 retailers carry this diamond
Most expensive: $6,545 SGD at MOH London · As of October 8, 2026
View at MOH London

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI 803629440. Listed at 3 retailers as of November 6, 2026. 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
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.4°
OriginNatural
Grading LabIGI
CertificateIGI 803629440
Dimensions6.80 × 6.84 × 4.20 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.80 mm6.84 mm1.23 ctJ / VVS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 803629440
Side View
Table 58.0%Crown 36.1°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $6,545 SGD|Low: $2,980 SGD|High: $6,707 SGD|Avg: $4,212 SGD|-1.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 8, 2026
Retailer 4$2,990 SGD
Retailer 11$3,490 SGD
Retailer 7$3,614 SGD
Retailer 3$3,746 SGD
Retailer 9$3,896 SGD
Retailer 8$4,060 SGD
Retailer 5$4,136 SGD
Retailer 6$4,245 SGD
Retailer 2$4,565 SGD
Retailer 10$4,698 SGD
MOH London$6,545 SGD

17 data points across 11 retailers

3 retailers

A
Cheapest Retailer
-
$3,746 SGD
Retailer 2
-
$4,698 SGD
View
Price last confirmed 37 days ago
Most Expensive
MOH London
87C404D95 · Oct 8
$6,545 SGD
£4,021 GBP
View
Price last confirmed 29 days ago
2 more retailers have this diamond
Prices start from $3,746 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
$3,746 SGD