Radiant|Natural|GIA

1.20ct G SI1 Radiant Natural Diamond

ID • G/SI1 • GIA 5241031331

Certificate GIA 5241031331

Diamond specifications and retailer prices

From $4,812 AUD
As of November 3, 2026
11 retailers carry this diamond
Most expensive: $8,681 AUD at NZ Jewellers · As of September 30, 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 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 5241031331. Listed at 11 retailers as of November 3, 2026. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5241031331
Dimensions7.40 × 5.24 × 3.50 mm
L/W Ratio1.41
Girdle conditionPolished
Top View
7.40 mm5.24 mm1.20 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5241031331
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.8%

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 3
Current: $5,899 AUD|Low: $3,580 AUD|High: $8,537 AUD|Avg: $5,303 AUD|+6.5%
Retailer 1
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
October 10, 2026
Retailer 15$3,650 AUD
Retailer 11$3,689 AUD
Retailer 3$3,921 AUD
Retailer 12$4,011 AUD
Retailer 4$4,535 AUD
Retailer 2$4,723 AUD
Retailer 9$4,744 AUD
Retailer 7$4,812 AUD
Retailer 8$4,937 AUD
Retailer 6$5,030 AUD
Retailer 10$5,417 AUD
Retailer 1$5,899 AUD
Retailer 5$6,008 AUD
Retailer 14$7,515 AUD
Retailer 13$8,537 AUD

17 data points across 15 retailers

11 retailers

Retailer 1
-
$3,650 AUD
$2,558 USD
Price last confirmed 26 days ago
Retailer 2
-
$3,689 AUD
HK$20,200 HKD
View
Price last confirmed 26 days ago
Retailer 3
-
$3,921 AUD
$2,748 USD
View
Price last confirmed 27 days ago
Retailer 4
-
$4,723 AUD
$3,310 USD
View
Price last confirmed 25 days ago
B+
Retailer 5
-
$4,812 AUD
View
Retailer 6
-
$5,030 AUD
SGD 4,764 SGD
View
Price last confirmed 33 days ago
Retailer 7
-
$5,417 AUD
View
Price last confirmed 25 days ago
Retailer 8
-
$6,008 AUD
ZAR 68,021 ZAR
View
Price last confirmed 34 days ago
Retailer 9
-
$7,515 AUD
$5,267 USD
View
Price last confirmed 26 days ago
Retailer 10
-
$8,537 AUD
£4,711 GBP
View
Price last confirmed 26 days ago
Most Expensive
NZ Jewellers
7975d009-8de0-48c5-8ee4-04783b95dd8e · Sep 30
$8,681 AUD
$6,084 USD
View
Price last confirmed 33 days ago
10 more retailers have this diamond
Prices start from $4,812 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
$4,812 AUD