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Oval|Lab Grown|IGI

1.51ct H SI1 Oval Lab Grown Diamond

ID • H/SI1 • IGI LG436072868

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG436072868

Diamond specifications and retailer prices

From $930 USD
As of November 2, 2026
Save $3,844 USD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,774 USD at MOH London · As of November 3, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436072868 or 436072868. Listed at 12 retailers as of November 2, 2026, with prices from $930 to $4,774, a $3,844 spread on the same certified stone. MOH London lists it at $4,774. 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
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436072868
Dimensions8.78 × 6.54 × 4.07 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.78 mm6.54 mm1.51 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436072868
Side View
Table 60.0%Crown 35.3°Girdle: STK-THKPavilion 40.7°Culet: NoneDepth 62.2%

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 2
Current: $4,774 USD|Low: $930 USD|High: $4,837 USD|Avg: $2,355 USD|-1.1%
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
November 2, 2026
Retailer 9$930 USD
Retailer 8$1,441 USD
Retailer 13$1,568 USD
Retailer 14$1,613 USD
Retailer 10$1,672 USD
Retailer 15$1,672 USD
Retailer 7$1,703 USD
Retailer 4$1,845 USD
Retailer 5$2,273 USD
Retailer 2$2,357 USD
Retailer 11$2,637 USD
Retailer 3$3,034 USD
Retailer 12$3,133 USD
MOH London$4,774 USD
Retailer 6$4,785 USD

38 data points across 15 retailers

12 retailers$930 USD to $4,774 USD

A
Cheapest Retailer
-
$930 USD
B+
Retailer 2
-
$1,441 USD
View
B+
Retailer 3
-
$1,568 USD
View
B+
Retailer 4
-
$1,613 USD
View
Final sale: no returns
Retailer 5
-
$1,672 USD
View
Price last confirmed 21 days ago
B+
Retailer 6
-
$1,672 USD
View
B
Retailer 7
-
$1,845 USD
View
B
Retailer 8
-
$2,357 USD
£1,856 GBP
View
B
Retailer 9
-
$2,637 USD
View
B
Retailer 10
-
$3,034 USD
View
B
Retailer 11
-
$3,133 USD
View
Most Expensive
B
MOH London
LG436072868 · Nov 3
$4,774 USD
£3,759 GBP
View
11 more retailers have this diamond
Prices start from $930 USDSave up to $3,844 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
$930 USD