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Radiant|Natural|GIA

1.20ct I SI1 Radiant Natural Diamond

ID • I/SI1 • GIA 5546336555

Certificate GIA 5546336555

Diamond specifications and retailer prices

From $2,719 AUD
As of November 6, 2026
Save $3,516 AUD (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,504 AUD at NZ Jewellers · As of October 17, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5546336555. Listed at 20 retailers as of November 4, 2026, with a 129% 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
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5546336555
Dimensions6.87 × 5.41 × 3.89 mm
L/W Ratio1.27
Top View
6.87 mm5.41 mm1.20 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5546336555
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 71.9%

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: $3,777 AUD|Low: $2,701 AUD|High: $6,364 AUD|Avg: $3,847 AUD|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 3$2,719 AUD
Retailer 4$2,832 AUD
Retailer 8$3,196 AUD
Retailer 2$3,294 AUD
Retailer 5$3,769 AUD
Retailer 11$3,772 AUD
Retailer 1$3,777 AUD
Retailer 10$3,886 AUD
Retailer 7$4,356 AUD
Retailer 6$4,433 AUD
Retailer 9$6,235 AUD

31 data points across 11 retailers

20 retailers$2,719 AUD to $6,235 AUD

A
Cheapest Retailer
-
$2,719 AUD
A
Retailer 2
-
$2,832 AUD
View
A
Retailer 3
-
$3,196 AUD
View
A
Retailer 4
-
$3,294 AUD
View
Final sale: no returns
A
Retailer 5
-
$3,394 AUD
View
A
Retailer 6
-
$3,398 AUD
View
Retailer 7
-
$3,589 AUD
View
Price last confirmed 20 days ago
Retailer 8
-
$3,589 AUD
View
Price last confirmed 22 days ago
B+
Retailer 9
-
$3,753 AUD
View
Retailer 10
-
$3,755 AUD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$3,769 AUD
View
B+
Retailer 12
-
$3,772 AUD
View
B+
Retailer 13
-
$3,777 AUD
View
B+
Retailer 14
-
$3,886 AUD
View
Retailer 15
-
$4,142 AUD
View
Price last confirmed 19 days ago
B+
Retailer 16
-
$4,356 AUD
View
B+
Retailer 17
-
$4,433 AUD
View
Retailer 18
-
$4,443 AUD
View
Price last confirmed 31 days ago
B
Retailer 19
-
$6,235 AUD
View
Most Expensive
NZ Jewellers
c0e566b7-b3ad-47b4-b208-21f20e29ae78 · Oct 17
$7,504 AUD
$5,156 USD
View
Price last confirmed 20 days ago
19 more retailers have this diamond
Prices start from $2,719 AUDSave up to $3,516 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
$2,719 AUD