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Oval|Lab Grown|IGI

1.51ct H SI2 Oval Lab Grown Diamond

ID • H/SI2 • IGI LG445038950

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445038950

Diamond specifications and retailer prices

From $840 USD
As of October 29, 2026
Save $3,705 USD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,545 USD 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445038950 or 445038950. Listed at 10 retailers as of October 29, 2026, with prices from $840 to $4,545, a $3,705 spread on the same certified stone. MOH London lists it at $4,545. 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
H
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445038950
Dimensions8.83 × 6.65 × 4.13 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.83 mm6.65 mm1.51 ctH / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG445038950
Side View
Table 56.5%Crown 34.4°Girdle: MED-THKPavilion 40.9°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $4,545 USD|Low: $840 USD|High: $4,582 USD|Avg: $2,112 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 4$840 USD
Retailer 2$1,213 USD
Retailer 8$1,320 USD
Retailer 9$1,358 USD
Retailer 5$1,407 USD
Retailer 11$1,988 USD
Retailer 6$2,231 USD
Retailer 7$2,638 USD
Retailer 10$2,696 USD
Retailer 3$3,150 USD
MOH London$4,545 USD

17 data points across 11 retailers

10 retailers$840 USD to $4,545 USD

A
Cheapest Retailer
-
$840 USD
B+
Retailer 2
-
$1,213 USD
View
B+
Retailer 3
-
$1,320 USD
View
B+
Retailer 4
-
$1,358 USD
View
Final sale: no returns
Retailer 5
-
$1,407 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$1,407 USD
View
B
Retailer 7
-
$2,231 USD
View
B
Retailer 8
-
$2,638 USD
View
B
Retailer 9
-
$2,696 USD
View
Most Expensive
B
MOH London
LG445038950 · Oct 29
$4,545 USD
£3,579 GBP
View
9 more retailers have this diamond
Prices start from $840 USDSave up to $3,705 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
$840 USD