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Radiant|Natural|GIA

0.51ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 6542238999

Certificate GIA 6542238999

Diamond specifications and retailer prices

From $863 CAD
$618 USD
As of October 25, 2026
Save $1,248 CAD (59%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,862 CAD at NZ Jewellers · As of October 24, 2026
View at NZ Jewellers

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded F 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 6542238999. Listed at 16 retailers as of October 25, 2026, with a 145% 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

0.51
Carat
F
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542238999
Dimensions5.41 × 4.27 × 2.76 mm
L/W Ratio1.27
Top View
5.41 mm4.27 mm0.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542238999
Side View
Table 64.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 64.5%

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: Oct 25
Current: $2,862 CAD|Low: $863 CAD|High: $2,862 CAD|Avg: $1,280 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 27, 2026
Retailer 8$863 CAD
Retailer 13$912 CAD
Retailer 15$912 CAD
Retailer 16$948 CAD
Retailer 7$949 CAD
Retailer 14$1,053 CAD
Retailer 5$1,084 CAD
Retailer 6$1,097 CAD
Retailer 9$1,118 CAD
Retailer 2$1,124 CAD
Retailer 3$1,173 CAD
Retailer 10$1,333 CAD
Retailer 4$1,373 CAD
Retailer 11$1,406 CAD
Retailer 12$2,111 CAD
NZ Jewellers$2,862 CAD

37 data points across 16 retailers

16 retailers$863 CAD to $2,111 CAD

A
Cheapest Retailer
-
$863 CAD
$618 USD
A
Retailer 2
-
$912 CAD
$653 USD
View
A
Retailer 3
-
$912 CAD
$653 USD
View
A
Retailer 4
-
$948 CAD
$679 USD
View
A
Retailer 5
-
$949 CAD
SGD 918 SGD
View
Retailer 6
-
$1,053 CAD
$754 USD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$1,084 CAD
$776 USD
View
B+
Retailer 8
-
$1,097 CAD
$785 USD
View
B+
Retailer 9
-
$1,118 CAD
£630 GBP
View
B+
Retailer 10
-
$1,124 CAD
£634 GBP
View
B+
Retailer 11
-
$1,173 CAD
$840 USD
View
B+
Retailer 12
-
$1,333 CAD
€909 EUR
View
Retailer 13
-
$1,373 CAD
A$1,512 AUD
View
Price last confirmed 29 days ago
B+
Retailer 14
-
$1,406 CAD
ZAR 16,255 ZAR
View
B
Retailer 15
-
$2,111 CAD
£1,190 GBP
View
Most Expensive
NZ Jewellers
b7f5f9fc-64ef-45e7-8d38-debddd2aca39 · Oct 24
$2,862 CAD
$2,049 USD
View
Price last confirmed 9 days ago
15 more retailers have this diamond
Prices start from $863 CADSave up to $1,248 CAD

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
0.51ct Radiant
$863 CAD