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Radiant|Natural|GIA

1.20ct G SI2 Radiant Natural Diamond

ID • G/SI2 • GIA 1518420796

Certificate GIA 1518420796

Diamond specifications and retailer prices

From $4,045 AUD
$2,835 USD
As of November 1, 2026
Save $4,209 AUD (51%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,255 AUD at NZ Jewellers · As of October 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1518420796. Listed at 15 retailers as of October 30, 2026, with prices from $4,045 to $8,255, a $4,209 spread on the same certified stone. NZ Jewellers lists it at $8,255. 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1518420796
Dimensions7.54 × 5.12 × 3.56 mm
L/W Ratio1.47
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Knot, Feather, Cloud, Cavity, Needle, Indented Natural
Top View
7.54 mm5.12 mm1.20 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1518420796
Side View
Table 69.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 69.5%

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: Nov 1
Current: $8,255 AUD|Low: $4,045 AUD|High: $8,403 AUD|Avg: $5,476 AUD|-1.8%
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
November 2, 2026
Retailer 9$4,045 AUD
Retailer 3$4,207 AUD
Retailer 4$4,319 AUD
Retailer 2$4,572 AUD
Retailer 11$4,739 AUD
Retailer 13$4,739 AUD
Retailer 12$4,920 AUD
Retailer 10$4,944 AUD
Retailer 7$4,951 AUD
Retailer 5$5,466 AUD
Retailer 6$5,545 AUD
Retailer 8$7,734 AUD
NZ Jewellers$8,255 AUD

35 data points across 13 retailers

15 retailers$4,045 AUD to $8,255 AUD

A
Cheapest Retailer
-
$4,045 AUD
$2,835 USD
B+
Retailer 2
-
$4,207 AUD
$2,948 USD
View
B+
Retailer 3
-
$4,319 AUD
$3,027 USD
View
B+
Retailer 4
-
$4,572 AUD
£2,523 GBP
View
B+
Retailer 5
-
$4,739 AUD
$3,321 USD
View
B+
Retailer 6
-
$4,739 AUD
$3,321 USD
View
Retailer 7
-
$4,823 AUD
$3,380 USD
View
Price last confirmed 22 days ago
B+
Retailer 8
-
$4,920 AUD
$3,448 USD
View
B+
Retailer 9
-
$4,944 AUD
$3,465 USD
View
B+
Retailer 10
-
$4,951 AUD
£2,732 GBP
View
B+
Retailer 11
-
$5,466 AUD
$3,831 USD
View
B+
Retailer 12
-
$5,545 AUD
€3,701 EUR
View
Retailer 13
-
$5,565 AUD
$3,900 USD
View
Price last confirmed 24 days ago
B
Retailer 14
-
$7,734 AUD
£4,268 GBP
View
Most Expensive
B
NZ Jewellers
512506f9-5725-44a6-b52f-d8d717bae660 · Oct 30
$8,255 AUD
$5,785 USD
View
14 more retailers have this diamond
Prices start from $4,045 AUDSave up to $4,209 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
$4,045 AUD