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Radiant|Natural|GIA

0.39ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 2557753406

Certificate GIA 2557753406

Diamond specifications and retailer prices

From $451 AUD
As of November 6, 2026
Save $940 AUD (68%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,323 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.39ct natural radiant diamond

This 0.39ct natural radiant sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557753406. Listed at 19 retailers as of November 6, 2026, with a 208% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.39
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.1°
Pavilion angle54°
OriginNatural
Grading LabGIA
CertificateGIA 2557753406
Dimensions5.05 × 3.75 × 2.57 mm
L/W Ratio1.35
Girdle conditionPolished
Culet sizeNone
Top View
5.05 mm3.75 mm0.39 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557753406
Side View
Table 65.0%Crown 35.1°Girdle: STK-THKPavilion 54°Culet: NoneDepth 68.7%

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 6
Current: $2,323 AUD|Low: $451 AUD|High: $2,419 AUD|Avg: $846 AUD|-4.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 7, 2026
Retailer 13$451 AUD
Retailer 8$538 AUD
Retailer 9$540 AUD
Retailer 10$552 AUD
Retailer 17$559 AUD
Retailer 15$607 AUD
Retailer 12$653 AUD
Retailer 18$653 AUD
Retailer 4$700 AUD
Retailer 2$742 AUD
Retailer 16$789 AUD
Retailer 7$824 AUD
Retailer 6$830 AUD
Retailer 5$866 AUD
Retailer 3$945 AUD
Retailer 14$1,012 AUD
Retailer 11$1,391 AUD
NZ Jewellers$2,323 AUD

23 data points across 18 retailers

19 retailers$451 AUD to $1,391 AUD

A
Cheapest Retailer
-
$451 AUD
A
Retailer 2
-
$538 AUD
View
A
Retailer 3
-
$540 AUD
View
A
Retailer 4
-
$552 AUD
View
A
Retailer 5
-
$559 AUD
View
Final sale: no returns
A
Retailer 6
-
$607 AUD
View
A
Retailer 7
-
$653 AUD
View
A
Retailer 8
-
$653 AUD
View
A
Retailer 9
-
$700 AUD
View
B+
Retailer 10
-
$742 AUD
View
B+
Retailer 11
-
$789 AUD
View
B+
Retailer 12
-
$824 AUD
View
B+
Retailer 13
-
$830 AUD
View
B+
Retailer 14
-
$866 AUD
View
B+
Retailer 15
-
$945 AUD
View
B+
Retailer 16
-
$1,012 AUD
View
Retailer 17
-
$1,048 AUD
View
Price last confirmed 35 days ago
B
Retailer 18
-
$1,391 AUD
View
Most Expensive
NZ Jewellers
d8ce5aca-9f91-4e15-a98b-644e959c5035 · Nov 5
$2,323 AUD
$1,596 USD
View
Price under review
18 more retailers have this diamond
Prices start from $451 AUDSave up to $940 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.

A
0.39ct Radiant
$451 AUD