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Radiant|Natural|GIA

1.20ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 2544104275

Certificate GIA 2544104275

Diamond specifications and retailer prices

From $4,653 AUD
As of November 6, 2026
Save $4,765 AUD (51%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $9,418 AUD at NZ Jewellers · As of November 5, 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 H 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 2544104275. Listed at 16 retailers as of November 5, 2026, with prices from $4,653 to $9,418, a $4,765 spread on the same certified stone. NZ Jewellers lists it at $9,418. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.68°
Pavilion angle35.38°
OriginNatural
Grading LabGIA
CertificateGIA 2544104275
Dimensions6.90 × 5.32 × 3.66 mm
L/W Ratio1.30
Top View
6.90 mm5.32 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2544104275
Side View
Table 70.0%Crown 49.68°Girdle: THK-VTKPavilion 35.38°Culet: NoneDepth 68.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $9,418 AUD|Low: $4,653 AUD|High: $9,910 AUD|Avg: $6,291 AUD|-5.0%
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
November 7, 2026
Retailer 6$4,653 AUD
Retailer 4$4,838 AUD
Retailer 11$5,056 AUD
Retailer 5$5,301 AUD
Retailer 7$5,376 AUD
Retailer 13$5,376 AUD
Retailer 3$5,603 AUD
Retailer 14$5,603 AUD
Retailer 2$5,648 AUD
Retailer 15$5,792 AUD
Retailer 9$6,293 AUD
Retailer 8$6,450 AUD
Retailer 12$7,884 AUD
Retailer 10$9,016 AUD
NZ Jewellers$9,418 AUD

43 data points across 15 retailers

16 retailers$4,653 AUD to $9,418 AUD

B+
Cheapest Retailer
-
$4,653 AUD
B+
Retailer 2
-
$4,838 AUD
View
B+
Retailer 3
-
$5,056 AUD
View
B+
Retailer 4
-
$5,301 AUD
View
B
Retailer 5
-
$5,376 AUD
View
B
Retailer 6
-
$5,376 AUD
View
B
Retailer 7
-
$5,603 AUD
View
B
Retailer 8
-
$5,603 AUD
View
B+
Retailer 9
-
$5,648 AUD
View
B
Retailer 10
-
$5,721 AUD
View
B
Retailer 11
-
$5,792 AUD
View
B
Retailer 12
-
$6,293 AUD
View
B
Retailer 13
-
$6,450 AUD
View
B
Retailer 14
-
$7,884 AUD
View
B
Retailer 15
-
$9,016 AUD
View
Most Expensive
B
NZ Jewellers
0da86508-7b38-4199-9245-ee2a9cc9c6e4 · Nov 5
$9,418 AUD
$6,471 USD
View
15 more retailers have this diamond
Prices start from $4,653 AUDSave up to $4,765 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+
1.20ct Radiant
$4,653 AUD