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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 $1,452 AUD
$1,020 USD
As of October 31, 2026
Save $1,654 AUD (53%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,106 AUD 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 $1,452 to $3,106, a $1,654 spread on the same certified stone. MOH London lists it at $3,106. 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
Colour
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 31
Current: $3,106 AUD|Low: $1,345 AUD|High: $3,140 AUD|Avg: $1,791 AUD|-1.1%
MOH London
Retailer 2
Retailer 3
October 26, 2026
Retailer 3$1,404 AUD
Retailer 2$1,452 AUD
MOH London$3,106 AUD

10 data points across 3 retailers

2 retailers$1,452 AUD to $3,106 AUD

B+
Cheapest Retailer
-
$1,452 AUD
$1,020 USD
Most Expensive
B
MOH London
LG811626429 · Oct 26
$3,106 AUD
£1,718 GBP
View
1 more retailer has this diamond
Prices start from $1,452 AUDSave up to $1,654 AUD

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
$1,452 AUD