Radiant|Natural|GIA

1.51ct J SI1 Radiant Natural Diamond

EX • J/SI1 • GIA 1548772947

Certificate GIA 1548772947

Diamond specifications and retailer prices

From $6,064 CAD
$4,341 USD
As of October 30, 2026
Save $6,227 CAD (51%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $12,291 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded J 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 1548772947. Listed at 14 retailers as of October 29, 2026, with prices from $6,064 to $12,291, a $6,227 spread on the same certified stone. MOH London lists it at $12,291. 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
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle49.57°
Pavilion angle35.79°
OriginNatural
Grading LabGIA
CertificateGIA 1548772947
Dimensions7.81 × 5.66 × 3.82 mm
L/W Ratio1.38
Girdle conditionVery Thick
Key to symbols
Knot, Needle, Pinpoint
Top View
7.81 mm5.66 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1548772947
Side View
Table 69.0%Crown 49.57°Girdle: THK-VTKPavilion 35.79°Culet: NoneDepth 67.5%

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 30
Current: $12,291 CAD|Low: $6,544 CAD|High: $12,372 CAD|Avg: $8,326 CAD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 7$6,544 CAD
Retailer 6$7,317 CAD
Retailer 4$7,408 CAD
Retailer 3$7,427 CAD
Retailer 5$7,738 CAD
Retailer 2$9,435 CAD
MOH London$12,291 CAD

43 data points across 7 retailers

14 retailers$6,064 CAD to $12,291 CAD

B+
Cheapest Retailer
-
$6,064 CAD
$4,341 USD
B+
Retailer 2
-
$6,472 CAD
$4,633 USD
View
B+
Retailer 3
-
$6,544 CAD
$4,685 USD
View
B
Retailer 4
-
$7,317 CAD
$5,238 USD
View
B
Retailer 5
-
$7,360 CAD
$5,269 USD
View
B
Retailer 6
-
$7,408 CAD
£4,175 GBP
View
B
Retailer 7
-
$7,427 CAD
£4,186 GBP
View
Retailer 8
-
$7,738 CAD
A$8,522 AUD
View
Price last confirmed 22 days ago
B
Retailer 9
-
$7,795 CAD
$5,580 USD
View
B
Retailer 10
-
$7,795 CAD
$5,580 USD
View
B
Retailer 11
-
$8,046 CAD
$5,760 USD
View
Retailer 12
-
$8,469 CAD
$6,063 USD
View
Price last confirmed 9 days ago
B
Retailer 13
-
$9,435 CAD
ZAR 109,114 ZAR
View
Most Expensive
B
MOH London
1725D7B22 · Oct 29
$12,291 CAD
£6,928 GBP
View
13 more retailers have this diamond
Prices start from $6,064 CADSave up to $6,227 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
$6,064 CAD