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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 $445 SGD
$348 USD
As of October 30, 2026
Save $644 SGD (59%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,359 SGD 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 30, 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
Colour
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 →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,359 SGD|Low: $445 SGD|High: $1,369 SGD|Avg: $850 SGD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 6$445 SGD
Retailer 2$624 SGD
Retailer 5$666 SGD
Retailer 7$678 SGD
Retailer 4$1,089 SGD
Retailer 3$1,202 SGD
MOH London$1,359 SGD

37 data points across 7 retailers

11 retailers$445 SGD to $1,089 SGD

Retailer 1
-
$272 SGD
$213 USD
Price last confirmed 32 days ago
Retailer 2
-
$316 SGD
$247 USD
View
Price last confirmed 36 days ago
Retailer 3
-
$334 SGD
$261 USD
View
Price last confirmed 31 days ago
B
Retailer 4
-
$445 SGD
$348 USD
View
B+
Retailer 5
-
$624 SGD
£385 GBP
View
B+
Retailer 6
-
$666 SGD
$521 USD
View
B+
Retailer 7
-
$678 SGD
$530 USD
View
Retailer 8
-
$1,085 SGD
$849 USD
View
Price last confirmed 30 days ago
B
Retailer 9
-
$1,089 SGD
$852 USD
View
Retailer 10
-
$1,202 SGD
$940 USD
View
Price last confirmed 12 days ago
Most Expensive
MOH London
LG743578131 · Oct 21
$1,359 SGD
£837 GBP
View
Price last confirmed 10 days ago
10 more retailers have this diamond
Prices start from $445 SGDSave up to $644 SGD

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+
1.57ct Oval
$445 SGD