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Radiant|Natural|GIA

1.23ct J SI1 Radiant Natural Diamond

VG • J/SI1 • GIA 5221183892

Certificate GIA 5221183892

Diamond specifications and retailer prices

From $4,554 SGD
As of November 5, 2026
Save $3,183 SGD (41%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $7,736 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 1.23ct natural radiant diamond

This 1.23ct natural radiant sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5221183892. Listed at 7 retailers as of November 4, 2026, with prices from $4,554 to $7,736, a $3,183 spread on the same certified stone. MOH London lists it at $7,736. 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
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5221183892
Dimensions6.30 × 5.59 × 4.00 mm
L/W Ratio1.13
Top View
6.30 mm5.59 mm1.23 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 5221183892
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 71.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $7,736 SGD|Low: $4,554 SGD|High: $7,850 SGD|Avg: $5,373 SGD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 4$4,554 SGD
Retailer 5$4,806 SGD
Retailer 6$4,806 SGD
Retailer 2$4,846 SGD
Retailer 3$5,399 SGD
MOH London$7,736 SGD

43 data points across 6 retailers

7 retailers$4,554 SGD to $7,736 SGD

B
Cheapest Retailer
-
$4,554 SGD
B
Retailer 2
-
$4,806 SGD
View
B
Retailer 3
-
$4,806 SGD
View
B
Retailer 4
-
$4,846 SGD
View
B
Retailer 5
-
$4,973 SGD
View
B
Retailer 6
-
$5,399 SGD
View
Most Expensive
C
MOH London
79FB9A471 · Nov 4
$7,736 SGD
£4,753 GBP
View
6 more retailers have this diamond
Prices start from $4,554 SGDSave up to $3,183 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.

B
1.23ct Radiant
$4,554 SGD