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Radiant|Natural|GIA

0.51ct G SI1 Radiant Natural Diamond

ID • G/SI1 • GIA 6561755542

Certificate GIA 6561755542

Diamond specifications and retailer prices

From $626 CAD
As of November 2, 2026
Save $1,902 CAD (75%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,528 CAD at NZ Jewellers · As of November 3, 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 G 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 6561755542. Listed at 17 retailers as of November 2, 2026, with prices from $626 to $2,528, a $1,902 spread on the same certified stone. NZ Jewellers lists it at $2,528. 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
G
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle43.5°
Pavilion angle55.6°
OriginNatural
Grading LabGIA
CertificateGIA 6561755542
Dimensions5.44 × 4.04 × 2.72 mm
L/W Ratio1.35
Girdle conditionPolished
Culet sizeNone
Top View
5.44 mm4.04 mm0.51 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6561755542
Side View
Table 69.0%Crown 43.5°Girdle: MED-STKPavilion 55.6°Culet: NoneDepth 67.5%

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: $2,528 CAD|Low: $626 CAD|High: $2,528 CAD|Avg: $972 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
Retailer 17
November 3, 2026
Retailer 14$626 CAD
Retailer 7$702 CAD
Retailer 4$717 CAD
Retailer 5$717 CAD
Retailer 17$744 CAD
Retailer 9$806 CAD
Retailer 12$868 CAD
Retailer 13$930 CAD
Retailer 10$979 CAD
Retailer 3$992 CAD
Retailer 16$1,009 CAD
Retailer 6$1,075 CAD
Retailer 2$1,076 CAD
Retailer 8$1,118 CAD
Retailer 15$1,134 CAD
Retailer 11$1,861 CAD
NZ Jewellers$2,528 CAD

4 data points across 17 retailers

17 retailers$626 CAD to $2,528 CAD

A
Cheapest Retailer
-
$626 CAD
A
Retailer 2
-
$702 CAD
View
A
Retailer 3
-
$717 CAD
View
A
Retailer 4
-
$717 CAD
View
A
Retailer 5
-
$806 CAD
View
A
Retailer 6
-
$817 CAD
View
A
Retailer 7
-
$868 CAD
View
A
Retailer 8
-
$930 CAD
View
A
Retailer 9
-
$979 CAD
View
B+
Retailer 10
-
$992 CAD
View
B+
Retailer 11
-
$1,009 CAD
View
B+
Retailer 12
-
$1,075 CAD
View
B+
Retailer 13
-
$1,076 CAD
View
B+
Retailer 14
-
$1,118 CAD
View
B+
Retailer 15
-
$1,134 CAD
View
B
Retailer 16
-
$1,861 CAD
View
Most Expensive
B
NZ Jewellers
64aecc6f-0a86-4525-a7a4-c4e7ffb59046 · Nov 3
$2,528 CAD
$1,797 USD
View
16 more retailers have this diamond
Prices start from $626 CADSave up to $1,902 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
$626 CAD