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Oval|Lab Grown|IGI

1.50ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • IGI LG750578537

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG750578537

Diamond specifications and retailer prices

From $285 SGD
$223 USD
As of October 29, 2026
Save $1,198 SGD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,483 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.5ct lab-grown oval diamond

This 1.5ct 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 top-tier cut grade and certified by IGI LG750578537 or 750578537. Listed at 15 retailers as of October 29, 2026, with prices from $285 to $1,483, a $1,198 spread on the same certified stone. Brilliant Earth lists it at $1,483. 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

1.50
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle43.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG750578537
Dimensions8.91 × 6.45 × 4.18 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizeNone
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.91 mm6.45 mm1.50 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG750578537
Side View
Table 59.0%Crown 32.7°Girdle: STK-THKPavilion 43.2°Culet: NoneDepth 64.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $1,483 SGD|Low: $268 SGD|High: $1,483 SGD|Avg: $712 SGD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 15$285 SGD
Retailer 8$331 SGD
Retailer 5$344 SGD
Retailer 6$344 SGD
Retailer 13$377 SGD
Retailer 4$564 SGD
Retailer 12$605 SGD
Retailer 10$633 SGD
Retailer 14$660 SGD
Retailer 11$773 SGD
Retailer 9$949 SGD
Retailer 2$1,138 SGD
Retailer 7$1,189 SGD
Retailer 3$1,378 SGD
Brilliant Earth$1,483 SGD

45 data points across 15 retailers

15 retailers$285 SGD to $1,483 SGD

A
Cheapest Retailer
-
$285 SGD
$223 USD
A
Retailer 2
-
$331 SGD
$259 USD
View
A
Retailer 3
-
$344 SGD
$269 USD
View
A
Retailer 4
-
$344 SGD
$269 USD
View
A
Retailer 5
-
$377 SGD
$295 USD
View
Final sale: no returns
A
Retailer 6
-
$564 SGD
€420 EUR
View
A
Retailer 7
-
$605 SGD
$473 USD
View
A
Retailer 8
-
$633 SGD
$495 USD
View
B+
Retailer 9
-
$660 SGD
£406 GBP
View
B+
Retailer 10
-
$773 SGD
$605 USD
View
B
Retailer 11
-
$949 SGD
$742 USD
View
B
Retailer 12
-
$1,138 SGD
$890 USD
View
Retailer 13
-
$1,189 SGD
$930 USD
View
Price last confirmed 9 days ago
B
Retailer 14
-
$1,378 SGD
£849 GBP
View
Most Expensive
B
Brilliant Earth
18445931A · Oct 29
$1,483 SGD
$1,160 USD
View
14 more retailers have this diamond
Prices start from $285 SGDSave up to $1,198 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.

A
1.50ct Oval
$285 SGD