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Radiant|Natural|GIA

1.20ct H SI2 Radiant Natural Diamond

EX • H/SI2 • GIA 2554784839

Certificate GIA 2554784839

Diamond specifications and retailer prices

From $3,930 AUD
As of November 6, 2026
Save $4,739 AUD (55%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $8,669 AUD at MOH London · As of November 4, 2026
View at MOH London

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2554784839. Listed at 6 retailers as of November 4, 2026, with prices from $3,930 to $8,669, a $4,739 spread on the same certified stone. MOH London lists it at $8,669. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554784839
Dimensions7.27 × 5.44 × 3.78 mm
L/W Ratio1.34
Girdle conditionSlightly Thick to Thick
Culet sizeNone
Top View
7.27 mm5.44 mm1.20 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554784839
Side View
Table 69.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.4%

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: $8,669 AUD|Low: $3,893 AUD|High: $8,737 AUD|Avg: $5,518 AUD|+0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 5$3,930 AUD
Retailer 8$4,066 AUD
Retailer 6$4,302 AUD
Retailer 3$5,181 AUD
Retailer 2$5,378 AUD
Retailer 9$5,394 AUD
Retailer 7$5,662 AUD
Retailer 4$6,049 AUD
MOH London$8,669 AUD

42 data points across 9 retailers

6 retailers$3,930 AUD to $8,669 AUD

B+
Cheapest Retailer
-
$3,930 AUD
B+
Retailer 2
-
$4,302 AUD
View
B+
Retailer 3
-
$5,181 AUD
View
B
Retailer 4
-
$5,378 AUD
View
B
Retailer 5
-
$6,049 AUD
View
Most Expensive
B
MOH London
CF378791B · Nov 4
$8,669 AUD
£4,690 GBP
View
5 more retailers have this diamond
Prices start from $3,930 AUDSave up to $4,739 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
$3,930 AUD