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Radiant|Natural|GIA

1.51ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 6552916146

Certificate GIA 6552916146

Diamond specifications and retailer prices

From $7,451 CAD
$5,334 USD
As of October 31, 2026
Save $6,051 CAD (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $13,502 CAD at NZ Jewellers · As of October 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552916146. Listed at 13 retailers as of October 30, 2026, with prices from $7,451 to $13,502, a $6,051 spread on the same certified stone. NZ Jewellers lists it at $13,502. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552916146
Dimensions7.98 × 5.71 × 3.83 mm
L/W Ratio1.40
Girdle conditionPolished
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
7.98 mm5.71 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552916146
Side View
Table 66.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 67.2%

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 31
Current: $13,502 CAD|Low: $7,133 CAD|High: $14,100 CAD|Avg: $9,176 CAD|-4.2%
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
November 1, 2026
Retailer 4$7,451 CAD
Retailer 2$7,661 CAD
Retailer 3$7,704 CAD
Retailer 7$7,876 CAD
Retailer 10$8,073 CAD
Retailer 12$8,073 CAD
Retailer 13$8,073 CAD
Retailer 5$8,334 CAD
Retailer 9$8,822 CAD
Retailer 11$9,316 CAD
Retailer 8$9,919 CAD
Retailer 6$11,895 CAD
NZ Jewellers$13,502 CAD

27 data points across 13 retailers

13 retailers$7,451 CAD to $13,502 CAD

A
Cheapest Retailer
-
$7,451 CAD
$5,334 USD
Final sale: no returns
A
Retailer 2
-
$7,661 CAD
£4,318 GBP
View
A
Retailer 3
-
$7,704 CAD
$5,515 USD
View
A
Retailer 4
-
$7,876 CAD
£4,439 GBP
View
A
Retailer 5
-
$8,073 CAD
$5,779 USD
View
A
Retailer 6
-
$8,073 CAD
$5,779 USD
View
A
Retailer 7
-
$8,073 CAD
$5,779 USD
View
Retailer 8
-
$8,334 CAD
A$9,179 AUD
View
Price last confirmed 23 days ago
B+
Retailer 9
-
$8,822 CAD
€6,015 EUR
View
B+
Retailer 10
-
$9,316 CAD
$6,669 USD
View
B+
Retailer 11
-
$9,919 CAD
ZAR 114,716 ZAR
View
B
Retailer 12
-
$11,895 CAD
£6,705 GBP
View
Most Expensive
B
NZ Jewellers
fa29a53a-a90a-4ea1-9896-b07372a6fe54 · Oct 30
$13,502 CAD
$9,666 USD
View
12 more retailers have this diamond
Prices start from $7,451 CADSave up to $6,051 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
$7,451 CAD