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Radiant|Natural|GIA

1.30ct J SI1 Radiant Natural Diamond

GD • J/SI1 • GIA 6224142139

Certificate GIA 6224142139

Diamond specifications and retailer prices

From $3,978 SGD
As of November 6, 2026
Save $1,822 SGD (31%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $8,622 SGD at MOH London · As of October 25, 2026
View at MOH London

About this 1.3ct natural radiant diamond

This 1.3ct natural radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6224142139. Listed at 8 retailers as of November 4, 2026, with a 46% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.30
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.84°
Pavilion angle31.69°
OriginNatural
Grading LabGIA
CertificateGIA 6224142139
Dimensions7.69 × 5.45 × 3.53 mm
L/W Ratio1.41
Top View
7.69 mm5.45 mm1.30 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6224142139
Side View
Table 70.0%Crown 44.84°Girdle: MediumPavilion 31.69°Culet: NoneDepth 64.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $8,622 SGD|Low: $3,978 SGD|High: $8,622 SGD|Avg: $5,266 SGD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5$3,978 SGD
Retailer 6$4,141 SGD
Retailer 8$4,666 SGD
Retailer 2$5,215 SGD
Retailer 4$5,410 SGD
Retailer 3$5,801 SGD
Retailer 7$5,827 SGD
MOH London$8,622 SGD

7 data points across 8 retailers

8 retailers$3,978 SGD to $5,801 SGD

B+
Cheapest Retailer
-
$3,978 SGD
B+
Retailer 2
-
$4,141 SGD
View
B+
Retailer 3
-
$4,666 SGD
View
B
Retailer 4
-
$5,215 SGD
View
Retailer 5
-
$5,410 SGD
View
Price last confirmed 44 days ago
B
Retailer 6
-
$5,801 SGD
View
Retailer 7
-
$5,827 SGD
View
Price last confirmed 45 days ago
Most Expensive
MOH London
0237BB3A1 · Oct 25
$8,622 SGD
£5,297 GBP
View
Price last confirmed 13 days ago
7 more retailers have this diamond
Prices start from $3,978 SGDSave up to $1,822 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+
1.30ct Radiant
$3,978 SGD