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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 $4,518 AUD
As of November 6, 2026
Save $2,070 AUD (31%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $9,791 AUD 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: $9,791 AUD|Low: $4,518 AUD|High: $9,791 AUD|Avg: $5,980 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5$4,518 AUD
Retailer 6$4,702 AUD
Retailer 8$5,299 AUD
Retailer 2$5,922 AUD
Retailer 4$6,143 AUD
Retailer 3$6,587 AUD
Retailer 7$6,618 AUD
MOH London$9,791 AUD

7 data points across 8 retailers

8 retailers$4,518 AUD to $6,587 AUD

B+
Cheapest Retailer
-
$4,518 AUD
B+
Retailer 2
-
$4,702 AUD
View
B+
Retailer 3
-
$5,299 AUD
View
B
Retailer 4
-
$5,922 AUD
View
Retailer 5
-
$6,143 AUD
View
Price last confirmed 44 days ago
B
Retailer 6
-
$6,587 AUD
View
Retailer 7
-
$6,618 AUD
View
Price last confirmed 45 days ago
Most Expensive
MOH London
0237BB3A1 · Oct 25
$9,791 AUD
£5,297 GBP
View
Price last confirmed 13 days ago
7 more retailers have this diamond
Prices start from $4,518 AUDSave up to $2,070 AUD

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
$4,518 AUD