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Radiant|Natural|GIA

1.20ct D SI2 Radiant Natural Diamond

EX • D/SI2 • GIA 2546543753

Certificate GIA 2546543753

Diamond specifications and retailer prices

From $3,844 AUD
As of November 2, 2026
Save $4,285 AUD (53%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $8,128 AUD at NZ Jewellers · As of November 3, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2546543753. Listed at 6 retailers as of November 2, 2026, with prices from $3,844 to $8,128, a $4,285 spread on the same certified stone. NZ Jewellers lists it at $8,128. 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle44.43°
Pavilion angle32.4°
OriginNatural
Grading LabGIA
CertificateGIA 2546543753
Dimensions6.77 × 5.25 × 3.61 mm
L/W Ratio1.29
Top View
6.77 mm5.25 mm1.20 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 2546543753
Side View
Table 66.0%Crown 44.43°Girdle: STK-THKPavilion 32.4°Culet: NoneDepth 68.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $8,128 AUD|Low: $3,842 AUD|High: $8,168 AUD|Avg: $5,054 AUD|-0.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 3$3,844 AUD
Retailer 6$3,889 AUD
Retailer 2$4,037 AUD
Retailer 5$4,101 AUD
Retailer 7$4,519 AUD
Retailer 9$4,730 AUD
Retailer 8$4,912 AUD
Retailer 10$5,065 AUD
Retailer 4$6,813 AUD
NZ Jewellers$8,128 AUD

29 data points across 10 retailers

6 retailers$3,844 AUD to $8,128 AUD

A
Cheapest Retailer
-
$3,844 AUD
A
Retailer 2
-
$3,889 AUD
View
A
Retailer 3
-
$4,037 AUD
View
A
Retailer 4
-
$4,101 AUD
View
B+
Retailer 5
-
$6,813 AUD
View
Most Expensive
B
NZ Jewellers
1bbe3af7-25e3-463e-8781-b327dddc254a · Nov 3
$8,128 AUD
$5,585 USD
View
5 more retailers have this diamond
Prices start from $3,844 AUDSave up to $4,285 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
$3,844 AUD