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Radiant|Natural|GIA

1.20ct D SI2 Radiant Natural Diamond

GD • D/SI2 • GIA 1558958102

Certificate GIA 1558958102

Diamond specifications and retailer prices

From $3,253 AUD
As of November 6, 2026
Save $5,874 AUD (64%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,127 AUD at NZ Jewellers · As of November 5, 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 D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1558958102. Listed at 13 retailers as of November 5, 2026, with prices from $3,253 to $9,127, a $5,874 spread on the same certified stone. NZ Jewellers lists it at $9,127. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
D
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1558958102
Dimensions6.87 × 5.27 × 3.74 mm
L/W Ratio1.30
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Natural
Top View
6.87 mm5.27 mm1.20 ctD / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1558958102
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 70.8%

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 6
Current: $9,127 AUD|Low: $3,253 AUD|High: $9,181 AUD|Avg: $4,928 AUD|+17.2%
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 7, 2026
Retailer 6$3,253 AUD
Retailer 11$3,461 AUD
Retailer 9$3,909 AUD
Retailer 8$4,366 AUD
Retailer 5$4,417 AUD
Retailer 12$4,534 AUD
Retailer 4$4,558 AUD
Retailer 2$4,621 AUD
Retailer 7$4,787 AUD
Retailer 13$4,919 AUD
Retailer 3$5,037 AUD
Retailer 10$7,280 AUD
NZ Jewellers$9,127 AUD

24 data points across 13 retailers

13 retailers$3,253 AUD to $9,127 AUD

A
Cheapest Retailer
-
$3,253 AUD
A
Retailer 2
-
$3,461 AUD
View
Final sale: no returns
A
Retailer 3
-
$3,909 AUD
View
B+
Retailer 4
-
$4,366 AUD
View
Retailer 5
-
$4,417 AUD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$4,534 AUD
View
B+
Retailer 7
-
$4,558 AUD
View
B+
Retailer 8
-
$4,621 AUD
View
B+
Retailer 9
-
$4,787 AUD
View
B+
Retailer 10
-
$4,919 AUD
View
B+
Retailer 11
-
$5,037 AUD
View
B
Retailer 12
-
$7,280 AUD
View
Most Expensive
C
NZ Jewellers
ef1d7ff0-189f-416b-b985-4aa6469da8f2 · Nov 5
$9,127 AUD
$6,271 USD
View
12 more retailers have this diamond
Prices start from $3,253 AUDSave up to $5,874 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
$3,253 AUD