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Radiant|Natural|GIA

1.51ct L SI1 Radiant Natural Diamond

EX • L/SI1 • GIA 6545196733

Certificate GIA 6545196733

Diamond specifications and retailer prices

From $4,234 CAD
As of November 7, 2026
Save $3,353 CAD (44%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $7,587 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 6545196733. Listed at 10 retailers as of November 5, 2026, with prices from $4,234 to $7,587, a $3,353 spread on the same certified stone. NZ Jewellers lists it at $7,587. 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 6545196733
Dimensions7.58 × 5.59 × 3.85 mm
L/W Ratio1.36
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
7.58 mm5.59 mm1.51 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545196733
Side View
Table 64.0%CrownGirdlePavilionCulet: NoneDepth 68.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 7
Current: $7,587 CAD|Low: $4,279 CAD|High: $7,587 CAD|Avg: $5,008 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 3$4,282 CAD
Retailer 6$4,355 CAD
Retailer 8$4,355 CAD
Retailer 2$4,505 CAD
Retailer 9$4,522 CAD
Retailer 7$5,024 CAD
Retailer 4$5,068 CAD
Retailer 5$5,316 CAD
NZ Jewellers$7,587 CAD

34 data points across 9 retailers

10 retailers$4,234 CAD to $7,587 CAD

B+
Cheapest Retailer
-
$4,234 CAD
B+
Retailer 2
-
$4,282 CAD
View
Retailer 3
-
$4,355 CAD
View
Price last confirmed 9 days ago
B
Retailer 4
-
$4,355 CAD
View
B+
Retailer 5
-
$4,505 CAD
View
B
Retailer 6
-
$4,522 CAD
View
B
Retailer 7
-
$5,024 CAD
View
B
Retailer 8
-
$5,068 CAD
View
B
Retailer 9
-
$5,316 CAD
View
Most Expensive
C
NZ Jewellers
0739118c-e27c-425e-bf0e-d7ea70c4c43b · Nov 5
$7,587 CAD
$5,394 USD
View
9 more retailers have this diamond
Prices start from $4,234 CADSave up to $3,353 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.

B+
1.51ct Radiant
$4,234 CAD