CaratHunter
Plans
Radiant|Natural|GIA

1.51ct I SI2 Radiant Natural Diamond

GD • I/SI2 • GIA 6525240450

Certificate GIA 6525240450

Diamond specifications and retailer prices

From $4,240 CAD
$3,035 USD
As of October 25, 2026
Save $5,162 CAD (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $9,401 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6525240450. Listed at 14 retailers as of October 25, 2026, with prices from $4,240 to $9,401, a $5,162 spread on the same certified stone. NZ Jewellers lists it at $9,401. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
I
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6525240450
Dimensions7.34 × 5.63 × 4.06 mm
L/W Ratio1.30
Top View
7.34 mm5.63 mm1.51 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6525240450
Side View
Table 67.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 72.1%

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: Oct 25
Current: $9,401 CAD|Low: $3,897 CAD|High: $9,401 CAD|Avg: $5,913 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 5$4,240 CAD
Retailer 7$4,287 CAD
Retailer 9$4,888 CAD
Retailer 10$4,888 CAD
Retailer 8$5,076 CAD
Retailer 4$5,279 CAD
Retailer 2$5,474 CAD
Retailer 3$5,927 CAD
Retailer 6$9,073 CAD
NZ Jewellers$9,401 CAD

40 data points across 10 retailers

14 retailers$4,240 CAD to $9,401 CAD

B+
Cheapest Retailer
-
$4,240 CAD
$3,035 USD
B+
Retailer 2
-
$4,287 CAD
$3,069 USD
View
Final sale: no returns
B+
Retailer 3
-
$4,340 CAD
$3,107 USD
View
B+
Retailer 4
-
$4,888 CAD
$3,499 USD
View
Retailer 5
-
$4,888 CAD
$3,499 USD
View
Price last confirmed 10 days ago
B+
Retailer 6
-
$5,076 CAD
$3,634 USD
View
B+
Retailer 7
-
$5,279 CAD
£2,976 GBP
View
B+
Retailer 8
-
$5,359 CAD
$3,836 USD
View
B+
Retailer 9
-
$5,474 CAD
£3,085 GBP
View
Retailer 10
-
$5,641 CAD
$4,038 USD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$5,927 CAD
€4,041 EUR
View
Retailer 12
-
$6,109 CAD
$4,373 USD
View
Price last confirmed 10 days ago
Retailer 13
-
$9,073 CAD
£5,114 GBP
View
Price last confirmed 15 days ago
Most Expensive
B
NZ Jewellers
363558b4-d8ed-4fd6-9675-3dbf51520a58 · Oct 27
$9,401 CAD
$6,730 USD
View
13 more retailers have this diamond
Prices start from $4,240 CADSave up to $5,162 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
$4,240 CAD