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Oval|Lab Grown|IGI

2.51ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • IGI LG811626429

Shape and cutting style on the report: Oval polygon step cut

Certificate IGI LG811626429

Diamond specifications and retailer prices

From $1,020 USD
As of October 29, 2026
Save $1,162 USD (53%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $2,182 USD at MOH London · As of October 26, 2026
View at MOH London

About this 2.51ct lab-grown oval diamond

This 2.51ct lab-grown oval sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG811626429 or 811626429. Listed at 2 retailers as of October 26, 2026, with prices from $1,020 to $2,182, a $1,162 spread on the same certified stone. MOH London lists it at $2,182. 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

2.51
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle44.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811626429
Dimensions10.72 × 7.15 × 4.38 mm
L/W Ratio1.50
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.72 mm7.15 mm2.51 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811626429
Side View
Table 65.0%Crown 34.7°Girdle: Slightly ThickPavilion 44.5°Culet: NoneDepth 61.3%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: $2,182 USD|Low: $945 USD|High: $2,206 USD|Avg: $1,258 USD|-1.1%
MOH London
Retailer 2
Retailer 3
October 26, 2026
Retailer 3$986 USD
Retailer 2$1,020 USD
MOH London$2,182 USD

10 data points across 3 retailers

2 retailers$1,020 USD to $2,182 USD

B+
Cheapest Retailer
-
$1,020 USD
Most Expensive
B
MOH London
LG811626429 · Oct 26
$2,182 USD
£1,718 GBP
View
1 more retailer has this diamond
Prices start from $1,020 USDSave up to $1,162 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.

B+
2.51ct Oval
$1,020 USD