CaratHunter
Plans
Oval|Lab Grown|IGI

1.51ct I SI2 Oval Lab Grown Diamond

ID • I/SI2 • IGI LG440011109

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG440011109

Diamond specifications and retailer prices

From $800 USD
As of October 29, 2026
Save $3,387 USD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,187 USD at MOH London · As of October 27, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440011109 or 440011109. Listed at 10 retailers as of October 27, 2026, with prices from $800 to $4,187, a $3,387 spread on the same certified stone. MOH London lists it at $4,187. 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
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440011109
Dimensions8.89 × 6.63 × 4.05 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
8.89 mm6.63 mm1.51 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG440011109
Side View
Table 60.5%Crown 34.6°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.1%

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: $4,187 USD|Low: $800 USD|High: $4,238 USD|Avg: $2,202 USD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 25, 2026
Retailer 2$800 USD
Retailer 4$1,256 USD
Retailer 6$1,860 USD
Retailer 3$2,071 USD
Retailer 5$2,640 USD
Retailer 7$2,913 USD
MOH London$4,187 USD

11 data points across 7 retailers

10 retailers$800 USD to $4,187 USD

A
Cheapest Retailer
-
$800 USD
A
Retailer 2
-
$1,122 USD
View
A
Retailer 3
-
$1,221 USD
View
A
Retailer 4
-
$1,256 USD
View
Final sale: no returns
Retailer 5
-
$1,301 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$1,301 USD
View
B
Retailer 7
-
$2,071 USD
View
B
Retailer 8
-
$2,439 USD
View
B
Retailer 9
-
$2,640 USD
View
Most Expensive
B
MOH London
LG440011109 · Oct 27
$4,187 USD
£3,297 GBP
View
9 more retailers have this diamond
Prices start from $800 USDSave up to $3,387 USD

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
$800 USD