CaratHunter
Plans
Oval|Lab Grown|IGI

1.51ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG550255096

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG550255096

Diamond specifications and retailer prices

From $298 SGD
$233 USD
As of October 29, 2026
Save $1,191 SGD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,489 SGD at MOH London · As of October 29, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG550255096 or 550255096. Listed at 18 retailers as of October 29, 2026, with prices from $298 to $1,489, a $1,191 spread on the same certified stone. MOH London lists it at $1,489. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG550255096
Dimensions9.48 × 6.50 × 3.94 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizePointed
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
9.48 mm6.50 mm1.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG550255096
Side View
Table 59.0%Crown 34.7°Girdle: MediumPavilion 40.1°Culet: NoneDepth 60.6%

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 29
Current: $1,489 SGD|Low: $286 SGD|High: $1,509 SGD|Avg: $788 SGD|+0.5%
MOH London
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 11$298 SGD
Retailer 5$343 SGD
Retailer 10$345 SGD
Retailer 13$369 SGD
Retailer 15$522 SGD
Retailer 9$619 SGD
Retailer 6$692 SGD
Retailer 2$697 SGD
Retailer 8$771 SGD
Retailer 7$807 SGD
Retailer 12$1,188 SGD
Retailer 14$1,191 SGD
Retailer 3$1,195 SGD
Retailer 4$1,470 SGD
MOH London$1,489 SGD

43 data points across 15 retailers

18 retailers$298 SGD to $1,489 SGD

A
Cheapest Retailer
-
$298 SGD
$233 USD
A
Retailer 2
-
$343 SGD
$268 USD
View
Final sale: no returns
A
Retailer 3
-
$345 SGD
$270 USD
View
A
Retailer 4
-
$369 SGD
$289 USD
View
A
Retailer 5
-
$425 SGD
HK$2,600 HKD
View
B+
Retailer 6
-
$522 SGD
$408 USD
View
A
Retailer 7
-
$619 SGD
€461 EUR
View
A
Retailer 8
-
$644 SGD
$504 USD
View
B+
Retailer 9
-
$692 SGD
$541 USD
View
B+
Retailer 10
-
$697 SGD
£429 GBP
View
B+
Retailer 11
-
$771 SGD
A$928 AUD
View
B+
Retailer 12
-
$807 SGD
$631 USD
View
B
Retailer 13
-
$1,188 SGD
$929 USD
View
B
Retailer 14
-
$1,191 SGD
$932 USD
View
Retailer 15
-
$1,195 SGD
$935 USD
View
Price last confirmed 12 days ago
B
Retailer 16
-
$1,249 SGD
View
B
Retailer 17
-
$1,470 SGD
$1,150 USD
View
Most Expensive
B
MOH London
LG550255096 · Oct 29
$1,489 SGD
£917 GBP
View
17 more retailers have this diamond
Prices start from $298 SGDSave up to $1,191 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
1.51ct Oval
$298 SGD