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Radiant|Natural|GIA

1.20ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 1553461798

Certificate GIA 1553461798

Diamond specifications and retailer prices

From $2,866 AUD
As of November 2, 2026
Save $4,205 AUD (59%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $7,070 AUD at NZ Jewellers · As of November 3, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553461798. Listed at 6 retailers as of November 2, 2026, with prices from $2,866 to $7,070, a $4,205 spread on the same certified stone. NZ Jewellers lists it at $7,070. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle49.79°
Pavilion angle35.66°
OriginNatural
Grading LabGIA
CertificateGIA 1553461798
Dimensions6.87 × 5.29 × 3.68 mm
L/W Ratio1.30
Girdle conditionThick
Key to symbols
Crystal, Cloud, Feather, Needle, Indented Natural
Top View
6.87 mm5.29 mm1.20 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1553461798
Side View
Table 68.0%Crown 49.79°GirdlePavilion 35.66°Culet: NoneDepth 69.5%

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 2
Current: $7,070 AUD|Low: $2,864 AUD|High: $7,142 AUD|Avg: $3,856 AUD|+14.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 4$2,866 AUD
Retailer 5$2,899 AUD
Retailer 7$2,915 AUD
Retailer 6$2,940 AUD
Retailer 2$3,032 AUD
Retailer 3$5,078 AUD
NZ Jewellers$7,070 AUD

30 data points across 7 retailers

6 retailers$2,866 AUD to $7,070 AUD

A
Cheapest Retailer
-
$2,866 AUD
A
Retailer 2
-
$2,899 AUD
View
A
Retailer 3
-
$2,940 AUD
View
A
Retailer 4
-
$3,032 AUD
View
B+
Retailer 5
-
$5,078 AUD
View
Most Expensive
B
NZ Jewellers
042af03c-3293-4a73-9bac-913e42e0b87f · Nov 3
$7,070 AUD
$4,858 USD
View
5 more retailers have this diamond
Prices start from $2,866 AUDSave up to $4,205 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
$2,866 AUD