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Radiant|Natural|GIA

0.51ct G SI2 Radiant Natural Diamond

ID • G/SI2 • GIA 2556750688

Certificate GIA 2556750688

Diamond specifications and retailer prices

From $626 CAD
$448 USD
As of October 30, 2026
Save $1,806 CAD (74%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,432 CAD at NZ Jewellers · As of October 30, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556750688. Listed at 17 retailers as of October 30, 2026, with prices from $626 to $2,432, a $1,806 spread on the same certified stone. NZ Jewellers lists it at $2,432. 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle53.9°
OriginNatural
Grading LabGIA
CertificateGIA 2556750688
Dimensions5.96 × 3.87 × 2.61 mm
L/W Ratio1.54
Girdle conditionPolished
Culet sizeNone
Top View
5.96 mm3.87 mm0.51 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556750688
Side View
Table 66.0%Crown 36°Girdle: MED-STKPavilion 53.9°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: Oct 30
Current: $2,432 CAD|Low: $552 CAD|High: $2,513 CAD|Avg: $947 CAD|-3.2%
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
October 31, 2026
Retailer 11$626 CAD
Retailer 5$648 CAD
Retailer 9$684 CAD
Retailer 3$703 CAD
Retailer 8$715 CAD
Retailer 6$757 CAD
Retailer 7$757 CAD
Retailer 16$810 CAD
Retailer 17$833 CAD
Retailer 4$851 CAD
Retailer 12$929 CAD
Retailer 14$972 CAD
Retailer 2$980 CAD
Retailer 15$986 CAD
Retailer 10$1,041 CAD
Retailer 13$1,801 CAD
NZ Jewellers$2,432 CAD

37 data points across 17 retailers

17 retailers$626 CAD to $2,432 CAD

A
Cheapest Retailer
-
$626 CAD
$448 USD
A
Retailer 2
-
$648 CAD
$464 USD
View
Final sale: no returns
Retailer 3
-
$684 CAD
$490 USD
View
Price last confirmed 10 days ago
A
Retailer 4
-
$703 CAD
$503 USD
View
A
Retailer 5
-
$715 CAD
HK$4,000 HKD
View
A
Retailer 6
-
$757 CAD
$542 USD
View
A
Retailer 7
-
$757 CAD
$542 USD
View
A
Retailer 8
-
$810 CAD
$580 USD
View
A
Retailer 9
-
$833 CAD
$596 USD
View
A
Retailer 10
-
$851 CAD
$609 USD
View
A
Retailer 11
-
$929 CAD
£524 GBP
View
A
Retailer 12
-
$972 CAD
£548 GBP
View
A
Retailer 13
-
$980 CAD
£552 GBP
View
A
Retailer 14
-
$986 CAD
$706 USD
View
B+
Retailer 15
-
$1,041 CAD
€710 EUR
View
B
Retailer 16
-
$1,801 CAD
£1,015 GBP
View
Most Expensive
B
NZ Jewellers
e6671163-bf29-4252-8837-769f134d2016 · Oct 30
$2,432 CAD
$1,741 USD
View
16 more retailers have this diamond
Prices start from $626 CADSave up to $1,806 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