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Radiant|Natural|GIA

1.20ct G SI1 Radiant Natural Diamond

EX • G/SI1 • GIA 5242074030

Certificate GIA 5242074030

Diamond specifications and retailer prices

From $4,211 AUD
$2,951 USD
As of October 31, 2026
Save $3,797 AUD (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,008 AUD at Helzberg Diamonds · As of November 2, 2026
View at Helzberg Diamonds

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded G 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 5242074030. Listed at 15 retailers as of October 31, 2026, with prices from $4,211 to $8,008, a $3,797 spread on the same certified stone. Helzberg Diamonds lists it at $8,008. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5242074030
Dimensions7.28 × 5.31 × 3.61 mm
L/W Ratio1.37
Culet sizeNone
Top View
7.28 mm5.31 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242074030
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.9%

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: Oct 31
Current: $8,008 AUD|Low: $4,211 AUD|High: $8,008 AUD|Avg: $5,602 AUD
Helzberg 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
Retailer 14
Retailer 15
November 3, 2026
Retailer 3$4,211 AUD
Retailer 2$4,307 AUD
Retailer 6$4,540 AUD
Retailer 14$4,549 AUD
Retailer 11$4,595 AUD
Retailer 9$4,963 AUD
Retailer 5$5,073 AUD
Retailer 15$5,351 AUD
Retailer 12$5,395 AUD
Retailer 4$5,500 AUD
Retailer 10$5,624 AUD
Retailer 8$5,843 AUD
Retailer 13$7,102 AUD
Retailer 7$7,587 AUD
Helzberg Diamonds$8,008 AUD

26 data points across 15 retailers

15 retailers$4,211 AUD to $8,008 AUD

A
Cheapest Retailer
-
$4,211 AUD
$2,951 USD
B+
Retailer 2
-
$4,307 AUD
SGD 4,079 SGD
View
B+
Retailer 3
-
$4,540 AUD
$3,182 USD
View
B+
Retailer 4
-
$4,549 AUD
$3,188 USD
View
B+
Retailer 5
-
$4,595 AUD
$3,220 USD
View
B+
Retailer 6
-
$4,963 AUD
£2,738 GBP
View
B+
Retailer 7
-
$5,073 AUD
SGD 4,804 SGD
View
B
Retailer 8
-
$5,351 AUD
$3,750 USD
View
B
Retailer 9
-
$5,395 AUD
$3,781 USD
View
B+
Retailer 10
-
$5,500 AUD
$3,855 USD
View
B+
Retailer 11
-
$5,624 AUD
€3,754 EUR
View
B+
Retailer 12
-
$5,843 AUD
$4,095 USD
View
B
Retailer 13
-
$7,102 AUD
$4,977 USD
View
B
Retailer 14
-
$7,587 AUD
$5,317 USD
View
Most Expensive
B
Helzberg Diamonds
XZRLIKIGNKGJG · Nov 2
$8,008 AUD
$5,612 USD
View
14 more retailers have this diamond
Prices start from $4,211 AUDSave up to $3,797 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
$4,211 AUD