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Radiant|Natural|GIA

0.50ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 6442931451

Certificate GIA 6442931451

Diamond specifications and retailer prices

From $1,061 AUD
$745 USD
As of October 29, 2026
Save $1,274 AUD (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,976 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6442931451. Listed at 12 retailers as of October 29, 2026, with a 120% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle39°
OriginNatural
Grading LabGIA
CertificateGIA 6442931451
Dimensions6.35 × 3.86 × 2.34 mm
L/W Ratio1.65
Top View
6.35 mm3.86 mm0.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6442931451
Side View
Table 68.0%Crown 39°Girdle: ThickPavilionCulet: NoneDepth 60.5%

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: Oct 29
Current: $1,482 AUD|Low: $884 AUD|High: $2,350 AUD|Avg: $1,674 AUD|+6.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 6$1,061 AUD
Retailer 1$1,482 AUD
Retailer 4$1,589 AUD
Retailer 3$1,617 AUD
Retailer 7$1,906 AUD
Retailer 5$1,952 AUD
Retailer 2$2,334 AUD

44 data points across 7 retailers

12 retailers$1,061 AUD to $2,334 AUD

Retailer 1
-
$801 AUD
$563 USD
B+
Retailer 2
-
$1,061 AUD
$745 USD
View
Final sale: no returns
Retailer 3
-
$1,149 AUD
$807 USD
View
Price last confirmed 45 days ago
Retailer 4
-
$1,325 AUD
$931 USD
View
Price last confirmed 53 days ago
B+
Retailer 5
-
$1,424 AUD
$1,001 USD
View
B+
Retailer 6
-
$1,482 AUD
£820 GBP
View
B+
Retailer 7
-
$1,589 AUD
£879 GBP
View
B+
Retailer 8
-
$1,617 AUD
€1,082 EUR
View
Retailer 9
-
$1,906 AUD
View
Price last confirmed 25 days ago
B
Retailer 10
-
$1,952 AUD
ZAR 22,154 ZAR
View
B
Retailer 11
-
$2,334 AUD
£1,291 GBP
View
Most Expensive
NZ Jewellers
cb5bcb55-588e-49f9-8fae-dc3b909eaf68 · Oct 30
$3,976 AUD
$2,793 USD
View
Price under review
11 more retailers have this diamond
Prices start from $1,061 AUDSave up to $1,274 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+
0.50ct Radiant
$1,061 AUD