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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 €404 EUR
$451 USD
As of November 2, 2026
Save €1,401 EUR (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €1,805 EUR 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 €404 to €1,805, a €1,401 spread on the same certified stone. NZ Jewellers lists it at €1,805. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €1,805 EUR|Low: €367 EUR|High: €1,819 EUR|Avg: €832 EUR|-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€404 EUR
Retailer 6€430 EUR
Retailer 4€685 EUR
Retailer 11€693 EUR
Retailer 5€709 EUR
Retailer 8€743 EUR
Retailer 10€792 EUR
Retailer 2€846 EUR
Retailer 3€872 EUR
Retailer 9€888 EUR
Retailer 7€1,329 EUR
NZ Jewellers€1,805 EUR

34 data points across 12 retailers

12 retailers€404 EUR to €1,805 EUR

A
Cheapest Retailer
-
€404 EUR
$451 USD
Final sale: no returns
A
Retailer 2
-
€430 EUR
₹45,772 INR
View
B+
Retailer 3
-
€685 EUR
$765 USD
View
B+
Retailer 4
-
€693 EUR
$775 USD
View
B+
Retailer 5
-
€709 EUR
£623 GBP
View
B
Retailer 6
-
€743 EUR
$830 USD
View
B+
Retailer 7
-
€792 EUR
$885 USD
View
B+
Retailer 8
-
€846 EUR
View
Retailer 9
-
€872 EUR
A$1,499 AUD
View
Price last confirmed 29 days ago
B+
Retailer 10
-
€888 EUR
ZAR 16,027 ZAR
View
B
Retailer 11
-
€1,329 EUR
£1,169 GBP
View
Most Expensive
B
NZ Jewellers
574144f7-0a18-44c2-9d7e-8348b534807f · Oct 30
€1,805 EUR
$2,016 USD
View
11 more retailers have this diamond
Prices start from €404 EURSave up to €1,401 EUR

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
€404 EUR