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Oval|Lab Grown|IGI

1.50ct I SI2 Oval Lab Grown Diamond

ID • I/SI2 • IGI LG451056577

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451056577

Diamond specifications and retailer prices

From $790 USD
As of November 5, 2026
Save $3,354 USD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,144 USD at MOH London · As of November 5, 2026
View at MOH London

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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451056577 or 451056577. Listed at 11 retailers as of November 5, 2026, with prices from $790 to $4,144, a $3,354 spread on the same certified stone. MOH London lists it at $4,144. 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
I
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451056577
Dimensions8.77 × 6.54 × 4.05 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.77 mm6.54 mm1.50 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451056577
Side View
Table 59.0%Crown 36°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 61.9%

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: Nov 5
Current: $4,144 USD|Low: $790 USD|High: $4,205 USD|Avg: $1,828 USD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 6$790 USD
Retailer 5$1,115 USD
Retailer 10$1,213 USD
Retailer 11$1,247 USD
Retailer 7$1,293 USD
Retailer 12$1,293 USD
Retailer 4$1,850 USD
Retailer 2$1,912 USD
Retailer 8$2,057 USD
Retailer 9$2,424 USD
Retailer 3$2,623 USD
MOH London$4,144 USD

41 data points across 12 retailers

11 retailers$790 USD to $4,144 USD

A
Cheapest Retailer
-
$790 USD
A
Retailer 2
-
$1,115 USD
View
A
Retailer 3
-
$1,213 USD
View
A
Retailer 4
-
$1,247 USD
View
Final sale: no returns
Retailer 5
-
$1,293 USD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$1,293 USD
View
B+
Retailer 7
-
$1,912 USD
View
B
Retailer 8
-
$2,057 USD
View
B
Retailer 9
-
$2,424 USD
View
B
Retailer 10
-
$2,623 USD
View
Most Expensive
B
MOH London
LG451056577 · Nov 5
$4,144 USD
£3,263 GBP
View
10 more retailers have this diamond
Prices start from $790 USDSave up to $3,354 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
1.50ct Oval
$790 USD