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Radiant|Natural|GIA

1.20ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 5241011743

Certificate GIA 5241011743

Diamond specifications and retailer prices

From $3,707 AUD
As of November 4, 2026
Save $4,435 AUD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $8,527 AUD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-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 5241011743. Listed at 21 retailers as of November 1, 2026, with a 120% 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

1.20
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5241011743
Dimensions6.89 × 5.22 × 3.64 mm
L/W Ratio1.32
Girdle conditionPolished
Top View
6.89 mm5.22 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5241011743
Side View
Table 70.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.7%

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 4
Current: $5,736 AUD|Low: $3,557 AUD|High: $8,184 AUD|Avg: $4,911 AUD|+2.0%
Retailer 1
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 3, 2026
Retailer 2$3,707 AUD
Retailer 10$3,861 AUD
Retailer 11$3,988 AUD
Retailer 4$4,114 AUD
Retailer 9$4,126 AUD
Retailer 16$4,222 AUD
Retailer 7$4,275 AUD
Retailer 15$4,330 AUD
Retailer 13$4,337 AUD
Retailer 8$4,382 AUD
Retailer 3$4,510 AUD
Retailer 17$4,599 AUD
Retailer 14$4,743 AUD
Retailer 18$5,056 AUD
Retailer 1$5,736 AUD
Retailer 6$5,983 AUD
Retailer 12$7,492 AUD
Retailer 5$8,142 AUD

27 data points across 18 retailers

21 retailers$3,707 AUD to $8,142 AUD

A
Cheapest Retailer
-
$3,707 AUD
A
Retailer 2
-
$3,861 AUD
View
A
Retailer 3
-
$3,988 AUD
View
B+
Retailer 4
-
$4,126 AUD
View
Retailer 5
-
$4,222 AUD
View
Price last confirmed 5 days ago
B+
Retailer 6
-
$4,275 AUD
View
B+
Retailer 7
-
$4,330 AUD
View
B+
Retailer 8
-
$4,337 AUD
View
Retailer 9
-
$4,382 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$4,510 AUD
View
B+
Retailer 11
-
$4,599 AUD
View
B+
Retailer 12
-
$4,743 AUD
View
B+
Retailer 13
-
$4,822 AUD
View
Retailer 14
-
$4,986 AUD
View
Price last confirmed 22 days ago
B+
Retailer 15
-
$5,056 AUD
View
Retailer 16
-
$5,190 AUD
View
Price last confirmed 34 days ago
B+
Retailer 17
-
$5,736 AUD
View
B+
Retailer 18
-
$5,983 AUD
View
B
Retailer 19
-
$7,492 AUD
View
B
Retailer 20
-
$8,142 AUD
View
Most Expensive
NZ Jewellers
d430023b-2a73-42d6-9d12-52662ca9a07c · Sep 30
$8,527 AUD
$5,859 USD
View
Price last confirmed 37 days ago
20 more retailers have this diamond
Prices start from $3,707 AUDSave up to $4,435 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
1.20ct Radiant
$3,707 AUD