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Radiant|Natural|GIA

1.51ct E SI2 Radiant Natural Diamond

EX • E/SI2

Diamond specifications and retailer prices

From $9,120 CAD
$6,516 USD
As of October 25, 2026
Save $9,121 CAD (50%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $18,412 CAD at NZ Jewellers · As of September 30, 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 19 retailers as of October 24, 2026, with a 100% 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

1.51
Carat
E
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions7.67 × 5.68 × 3.79 mm
L/W Ratio1.35
Top View
7.67 mm5.68 mm1.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 67.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 66.7%

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: $18,241 CAD|Low: $9,120 CAD|High: $18,412 CAD|Avg: $10,971 CAD|-0.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 2$9,120 CAD
Retailer 10$9,392 CAD
Retailer 7$9,691 CAD
Retailer 4$9,880 CAD
Retailer 3$10,032 CAD
Retailer 8$10,225 CAD
Retailer 5$10,336 CAD
Retailer 9$10,808 CAD
Retailer 6$11,400 CAD
NZ Jewellers$18,241 CAD

40 data points across 10 retailers

19 retailers$9,120 CAD to $18,241 CAD

A
Cheapest Retailer
-
$9,120 CAD
$6,516 USD
A
Retailer 2
-
$9,120 CAD
$6,516 USD
View
A
Retailer 3
-
$9,205 CAD
$6,577 USD
View
Price last confirmed 21 days ago
A
Retailer 4
-
$9,392 CAD
View
A
Retailer 5
-
$9,691 CAD
$6,924 USD
View
A
Retailer 6
-
$9,880 CAD
$7,059 USD
View
B+
Retailer 7
-
$9,880 CAD
$7,059 USD
View
B+
Retailer 8
-
$9,972 CAD
$7,125 USD
View
Price last confirmed 21 days ago
B+
Retailer 9
-
$10,032 CAD
$7,168 USD
View
B+
Retailer 10
-
$10,032 CAD
$7,168 USD
View
B+
Retailer 11
-
$10,126 CAD
$7,235 USD
View
Price last confirmed 28 days ago
B+
Retailer 12
-
$10,225 CAD
$7,306 USD
View
B+
Retailer 13
-
$10,336 CAD
£5,815 GBP
View
B+
Retailer 14
-
$10,808 CAD
$7,722 USD
View
B+
Retailer 15
-
$11,400 CAD
$8,145 USD
View
B+
Retailer 16
-
$11,508 CAD
$8,222 USD
View
Price last confirmed 53 days ago
B+
Retailer 17
-
$11,508 CAD
$8,222 USD
View
Price last confirmed 30 days ago
B
Retailer 18
-
$18,241 CAD
$13,033 USD
View
Most Expensive
B
NZ Jewellers
ff8c50ad-30fc-4b3c-9998-5b3eced69d03 · Sep 30
$18,412 CAD
$13,155 USD
View
Price last confirmed 29 days ago
18 more retailers have this diamond
Prices start from $9,120 CADSave up to $9,121 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
$9,120 CAD