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Radiant|Natural|GIA

0.50ct I SI1 Radiant Natural Diamond

ID • I/SI1 • GIA 6542392066

Certificate GIA 6542392066

Diamond specifications and retailer prices

From $644 AUD
$451 USD
As of November 2, 2026
Save $2,233 AUD (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,877 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.5ct natural radiant diamond

This 0.5ct natural radiant sits in the half to three-quarter carat band, graded I 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 6542392066. Listed at 12 retailers as of October 30, 2026, with prices from $644 to $2,877, a $2,233 spread on the same certified stone. NZ Jewellers lists it at $2,877. 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

0.50
Carat
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542392066
Dimensions5.40 × 3.98 × 2.74 mm
L/W Ratio1.36
Top View
5.40 mm3.98 mm0.50 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542392066
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.8%

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 2
Current: $2,877 AUD|Low: $585 AUD|High: $2,899 AUD|Avg: $1,325 AUD|-0.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 12$644 AUD
Retailer 2$686 AUD
Retailer 4$1,092 AUD
Retailer 11$1,105 AUD
Retailer 6$1,130 AUD
Retailer 8$1,184 AUD
Retailer 10$1,263 AUD
Retailer 5$1,348 AUD
Retailer 3$1,390 AUD
Retailer 9$1,416 AUD
Retailer 7$2,118 AUD
NZ Jewellers$2,877 AUD

34 data points across 12 retailers

12 retailers$644 AUD to $2,877 AUD

A
Cheapest Retailer
-
$644 AUD
$451 USD
Final sale: no returns
A
Retailer 2
-
$686 AUD
₹45,757 INR
View
B+
Retailer 3
-
$1,092 AUD
$765 USD
View
B+
Retailer 4
-
$1,105 AUD
$775 USD
View
B+
Retailer 5
-
$1,130 AUD
£623 GBP
View
B
Retailer 6
-
$1,184 AUD
$830 USD
View
B+
Retailer 7
-
$1,263 AUD
$885 USD
View
B+
Retailer 8
-
$1,348 AUD
€900 EUR
View
Retailer 9
-
$1,390 AUD
View
Price last confirmed 29 days ago
B+
Retailer 10
-
$1,416 AUD
ZAR 16,027 ZAR
View
B
Retailer 11
-
$2,118 AUD
£1,169 GBP
View
Most Expensive
B
NZ Jewellers
574144f7-0a18-44c2-9d7e-8348b534807f · Oct 30
$2,877 AUD
$2,016 USD
View
11 more retailers have this diamond
Prices start from $644 AUDSave up to $2,233 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
0.50ct Radiant
$644 AUD