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Radiant|Natural|GIA

1.20ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 2245009600

Certificate GIA 2245009600

Diamond specifications and retailer prices

From $3,602 AUD
As of November 7, 2026
Save $2,742 AUD (43%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $6,344 AUD at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

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 2245009600. Listed at 6 retailers as of November 7, 2026, with prices from $3,602 to $6,344, a $2,742 spread on the same certified stone. 77 Diamonds lists it at $6,344. 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
OriginNatural
Grading LabGIA
CertificateGIA 2245009600
Dimensions7.27 × 5.39 × 3.65 mm
L/W Ratio1.35
Girdle conditionPolished
Culet sizeNone
Key to symbols
Feather, Pinpoint
Top View
7.27 mm5.39 mm1.20 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2245009600
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.7%

Caratlytics Score

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

Price History

Last verified: Nov 7
Current: $6,344 AUD|Low: $2,794 AUD|High: $6,421 AUD|Avg: $3,940 AUD|-1.2%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 7, 2026
Retailer 3$2,794 AUD
Retailer 8$2,851 AUD
Retailer 10$3,330 AUD
Retailer 11$3,590 AUD
Retailer 7$3,602 AUD
Retailer 4$3,753 AUD
Retailer 13$3,794 AUD
Retailer 9$4,142 AUD
Retailer 12$4,272 AUD
Retailer 5$4,375 AUD
Retailer 6$4,806 AUD
Retailer 2$6,235 AUD
77 Diamonds$6,344 AUD

23 data points across 13 retailers

6 retailers$3,602 AUD to $6,344 AUD

Retailer 1
-
$2,794 AUD
Price last confirmed 64 days ago
B+
Retailer 2
-
$3,602 AUD
View
Retailer 3
-
$4,142 AUD
View
Price last confirmed 62 days ago
B
Retailer 4
-
$4,806 AUD
View
B
Retailer 5
-
$6,235 AUD
View
Most Expensive
B
77 Diamonds
RADMB2MPGMGCB · Nov 7
$6,344 AUD
£3,432 GBP
View
5 more retailers have this diamond
Prices start from $3,602 AUDSave up to $2,742 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
$3,602 AUD