Round|Lab Grown|IGI

1.51ct J I1 Round Lab Grown Diamond

EX • J/I1 • IGI LG788685687

Shape and cutting style on the report: Round brilliant

Certificate IGI LG788685687

Diamond specifications and retailer prices

From $210 CAD
$150 USD
As of October 25, 2026
Save $1,226 CAD (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,435 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by IGI LG788685687 or 788685687. Listed at 11 retailers as of October 25, 2026, with prices from $210 to $1,435, a $1,226 spread on the same certified stone. MOH London lists it at $1,435. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
J
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788685687
Dimensions7.39 × 7.43 × 4.45 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.39 mm7.43 mm1.51 ctJ / I1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788685687
Side View
Table 62.0%Crown 34.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: $1,435 CAD|Low: $210 CAD|High: $1,538 CAD|Avg: $548 CAD|-6.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 9$210 CAD
Retailer 8$246 CAD
Retailer 6$285 CAD
Retailer 10$305 CAD
Retailer 4$306 CAD
Retailer 2$518 CAD
Retailer 7$542 CAD
Retailer 3$668 CAD
Retailer 11$766 CAD
Retailer 5$981 CAD
MOH London$1,435 CAD

26 data points across 11 retailers

11 retailers$210 CAD to $1,435 CAD

A
Cheapest Retailer
-
$210 CAD
$150 USD
B+
Retailer 2
-
$246 CAD
$176 USD
View
A
Retailer 3
-
$285 CAD
$204 USD
View
B+
Retailer 4
-
$305 CAD
$218 USD
View
B+
Retailer 5
-
$306 CAD
$219 USD
View
B+
Retailer 6
-
$518 CAD
€353 EUR
View
B
Retailer 7
-
$542 CAD
$388 USD
View
B+
Retailer 8
-
$668 CAD
$478 USD
View
B+
Retailer 9
-
$766 CAD
$548 USD
View
B+
Retailer 10
-
$981 CAD
$702 USD
View
Most Expensive
B
MOH London
LG788685687 · Oct 29
$1,435 CAD
£809 GBP
View
10 more retailers have this diamond
Prices start from $210 CADSave up to $1,226 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 Round
$210 CAD