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Radiant|Natural|GIA

1.51ct L SI1 Radiant Natural Diamond

EX • L/SI1 • GIA 6551369573

Certificate GIA 6551369573

Diamond specifications and retailer prices

From $3,373 CAD
As of November 6, 2026
Save $3,799 CAD (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $7,172 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551369573. Listed at 10 retailers as of November 5, 2026, with prices from $3,373 to $7,172, a $3,799 spread on the same certified stone. NZ Jewellers lists it at $7,172. 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

1.51
Carat
L
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551369573
Dimensions7.50 × 5.56 × 3.93 mm
L/W Ratio1.35
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Pinpoint
Top View
7.50 mm5.56 mm1.51 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551369573
Side View
Table 68.0%CrownGirdle: ThickPavilionCulet: NoneDepth 70.5%

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: Nov 6
Current: $7,172 CAD|Low: $3,370 CAD|High: $7,172 CAD|Avg: $4,038 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 3$3,373 CAD
Retailer 10$3,411 CAD
Retailer 6$3,431 CAD
Retailer 8$3,431 CAD
Retailer 9$3,588 CAD
Retailer 2$3,629 CAD
Retailer 7$3,958 CAD
Retailer 5$4,186 CAD
Retailer 4$4,258 CAD
NZ Jewellers$7,172 CAD

37 data points across 10 retailers

10 retailers$3,373 CAD to $7,172 CAD

A
Cheapest Retailer
-
$3,373 CAD
B+
Retailer 2
-
$3,411 CAD
View
B+
Retailer 3
-
$3,431 CAD
View
Retailer 4
-
$3,431 CAD
View
Price last confirmed 13 days ago
B+
Retailer 5
-
$3,588 CAD
View
B+
Retailer 6
-
$3,629 CAD
View
B+
Retailer 7
-
$3,958 CAD
View
B
Retailer 8
-
$4,186 CAD
View
B
Retailer 9
-
$4,258 CAD
View
Most Expensive
C
NZ Jewellers
c177503c-87dd-41ac-a55e-122f567601ac · Nov 5
$7,172 CAD
$5,099 USD
View
9 more retailers have this diamond
Prices start from $3,373 CADSave up to $3,799 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
1.51ct Radiant
$3,373 CAD