CaratHunter
Plans
Oval|Lab Grown|IGI

1.51ct I SI1 Oval Lab Grown Diamond

ID • I/SI1 • IGI LG451057559

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451057559

Diamond specifications and retailer prices

From $1,182 CAD
As of November 6, 2026
Save $5,657 CAD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,838 CAD at MOH London · As of November 3, 2026
View at MOH London

About this 1.51ct lab-grown oval diamond

This 1.51ct lab-grown oval 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 and certified by IGI LG451057559 or 451057559. Listed at 11 retailers as of November 3, 2026, with prices from $1,182 to $6,838, a $5,657 spread on the same certified stone. MOH London lists it at $6,838. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057559
Dimensions9.05 × 6.53 × 4.06 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
9.05 mm6.53 mm1.51 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057559
Side View
Table 58.0%Crown 35.6°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.2%

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: Nov 6
Current: $6,838 CAD|Low: $1,182 CAD|High: $6,920 CAD|Avg: $3,236 CAD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 2$1,182 CAD
Retailer 5$1,834 CAD
Retailer 9$1,996 CAD
Retailer 10$2,054 CAD
Retailer 6$2,128 CAD
Retailer 11$2,370 CAD
Retailer 3$2,931 CAD
Retailer 7$3,366 CAD
Retailer 12$3,967 CAD
Retailer 8$3,989 CAD
Retailer 4$6,092 CAD
MOH London$6,838 CAD

14 data points across 12 retailers

11 retailers$1,182 CAD to $6,838 CAD

A
Cheapest Retailer
-
$1,182 CAD
A
Retailer 2
-
$1,834 CAD
View
B+
Retailer 3
-
$1,996 CAD
View
B+
Retailer 4
-
$2,054 CAD
View
Final sale: no returns
Retailer 5
-
$2,128 CAD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$2,128 CAD
View
B+
Retailer 7
-
$2,370 CAD
View
B
Retailer 8
-
$3,366 CAD
View
B
Retailer 9
-
$3,967 CAD
View
B
Retailer 10
-
$3,989 CAD
View
Most Expensive
B
MOH London
LG451057559 · Nov 3
$6,838 CAD
£3,828 GBP
View
10 more retailers have this diamond
Prices start from $1,182 CADSave up to $5,657 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 Oval
$1,182 CAD