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Oval|Lab Grown|IGI

1.57ct D SI1 Oval Lab Grown Diamond

GD • D/SI1 • IGI LG743578131

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG743578131

Diamond specifications and retailer prices

From $487 CAD
$348 USD
As of October 28, 2026
Save $705 CAD (59%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,488 CAD at MOH London · As of October 21, 2026
View at MOH London

About this 1.57ct lab-grown oval diamond

This 1.57ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG743578131 or 743578131. Listed at 11 retailers as of October 26, 2026, with a 145% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.57
Carat
D
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743578131
Dimensions9.55 × 6.61 × 3.98 mm
L/W Ratio1.44
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.55 mm6.61 mm1.57 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743578131
Side View
Table 59.0%Crown 33°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.2%

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 28
Current: $1,488 CAD|Low: $487 CAD|High: $1,498 CAD|Avg: $930 CAD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 28, 2026
Retailer 6$487 CAD
Retailer 2$680 CAD
Retailer 5$729 CAD
Retailer 7$742 CAD
Retailer 4$1,192 CAD
Retailer 3$1,316 CAD
MOH London$1,488 CAD

35 data points across 7 retailers

11 retailers$487 CAD to $1,192 CAD

A
Retailer 1
-
$298 CAD
$213 USD
Price last confirmed 31 days ago
B+
Retailer 2
-
$346 CAD
$247 USD
View
Price last confirmed 34 days ago
B+
Retailer 3
-
$365 CAD
$261 USD
View
Price last confirmed 30 days ago
B
Retailer 4
-
$487 CAD
$348 USD
View
B+
Retailer 5
-
$680 CAD
£382 GBP
View
B+
Retailer 6
-
$729 CAD
$521 USD
View
B+
Retailer 7
-
$742 CAD
$530 USD
View
B
Retailer 8
-
$1,188 CAD
$849 USD
View
Price last confirmed 29 days ago
B
Retailer 9
-
$1,192 CAD
$852 USD
View
B
Retailer 10
-
$1,316 CAD
$940 USD
View
Price last confirmed 11 days ago
Most Expensive
B
MOH London
LG743578131 · Oct 21
$1,488 CAD
£837 GBP
View
Price last confirmed 8 days ago
10 more retailers have this diamond
Prices start from $487 CADSave up to $705 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
1.57ct Oval
$487 CAD