Radiant|Natural|GIA

1.51ct E SI1 Radiant Natural Diamond

ID • E/SI1 • GIA 1559156534

Certificate GIA 1559156534

Diamond specifications and retailer prices

From $7,810 CAD
$5,560 USD
As of October 29, 2026
Save $6,198 CAD (44%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $14,008 CAD at NZ Jewellers · As of October 27, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1559156534. Listed at 9 retailers as of October 27, 2026, with prices from $7,810 to $14,008, a $6,198 spread on the same certified stone. NZ Jewellers lists it at $14,008. 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle54.56°
Pavilion angle35.61°
OriginNatural
Grading LabGIA
CertificateGIA 1559156534
Dimensions7.23 × 5.70 × 4.02 mm
L/W Ratio1.27
Girdle conditionVery Thick
Key to symbols
Crystal, Cloud, Feather, Cavity, Needle, Indented Natural
Top View
7.23 mm5.70 mm1.51 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559156534
Side View
Table 74.0%Crown 54.56°Girdle: MED-VTKPavilion 35.61°Culet: 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: Oct 29
Current: $14,008 CAD|Low: $7,517 CAD|High: $14,154 CAD|Avg: $9,282 CAD|-1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 11$7,517 CAD
Retailer 8$7,810 CAD
Retailer 2$7,882 CAD
Retailer 10$8,091 CAD
Retailer 5$8,375 CAD
Retailer 6$8,375 CAD
Retailer 7$8,389 CAD
Retailer 9$8,522 CAD
Retailer 3$8,912 CAD
Retailer 4$12,406 CAD
NZ Jewellers$14,008 CAD

37 data points across 11 retailers

9 retailers$7,810 CAD to $14,008 CAD

A
Cheapest Retailer
-
$7,810 CAD
$5,560 USD
A
Retailer 2
-
$7,882 CAD
£4,418 GBP
View
A
Retailer 3
-
$8,091 CAD
$5,760 USD
View
Price last confirmed 29 days ago
A
Retailer 4
-
$8,375 CAD
$5,962 USD
View
A
Retailer 5
-
$8,375 CAD
$5,962 USD
View
A
Retailer 6
-
$8,389 CAD
A$9,188 AUD
View
Price last confirmed 19 days ago
A
Retailer 7
-
$8,522 CAD
$6,067 USD
View
B+
Retailer 8
-
$12,406 CAD
£6,954 GBP
View
Most Expensive
B
NZ Jewellers
4ae519c7-44c9-4346-8684-d693f49de9c5 · Oct 27
$14,008 CAD
$9,972 USD
View
8 more retailers have this diamond
Prices start from $7,810 CADSave up to $6,198 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
$7,810 CAD