Radiant|Natural|GIA

0.50ct I SI1 Radiant Natural Diamond

ID • I/SI1 • GIA 6542392066

Certificate GIA 6542392066

Diamond specifications and retailer prices

From $451 USD
As of November 2, 2026
Save $1,565 USD (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,016 USD 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 $451 to $2,016, a $1,565 spread on the same certified stone. NZ Jewellers lists it at $2,016. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $2,016 USD|Low: $410 USD|High: $2,032 USD|Avg: $929 USD|-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$451 USD
Retailer 5$481 USD
Retailer 4$765 USD
Retailer 11$775 USD
Retailer 2$792 USD
Retailer 7$830 USD
Retailer 10$885 USD
Retailer 8$946 USD
Retailer 3$974 USD
Retailer 9$992 USD
Retailer 6$1,485 USD
NZ Jewellers$2,016 USD

35 data points across 12 retailers

12 retailers$451 USD to $2,016 USD

A
Cheapest Retailer
-
$451 USD
Final sale: no returns
A
Retailer 2
-
$481 USD
₹45,772 INR
View
B+
Retailer 3
-
$765 USD
View
B+
Retailer 4
-
$775 USD
View
B+
Retailer 5
-
$792 USD
£623 GBP
View
B
Retailer 6
-
$830 USD
View
B+
Retailer 7
-
$885 USD
View
B+
Retailer 8
-
$946 USD
€901 EUR
View
Retailer 9
-
$974 USD
A$1,499 AUD
View
Price last confirmed 29 days ago
B+
Retailer 10
-
$992 USD
ZAR 16,027 ZAR
View
B
Retailer 11
-
$1,485 USD
£1,169 GBP
View
Most Expensive
B
NZ Jewellers
574144f7-0a18-44c2-9d7e-8348b534807f · Oct 30
$2,016 USD
View
11 more retailers have this diamond
Prices start from $451 USDSave up to $1,565 USD

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
$451 USD