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Oval|Lab Grown|IGI

2.56ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG783623115

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

Certificate IGI LG783623115

Diamond specifications and retailer prices

From $728 USD
As of October 28, 2026
Save $1,276 USD (64%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $2,004 USD at MOH London · As of October 29, 2026
View at MOH London

About this 2.56ct lab-grown oval diamond

This 2.56ct 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 LG783623115 or 783623115. Listed at 2 retailers as of October 28, 2026, with prices from $728 to $2,004, a $1,276 spread on the same certified stone. MOH London lists it at $2,004. 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

2.56
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783623115
Dimensions10.78 × 7.69 × 4.26 mm
L/W Ratio1.40
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.78 mm7.69 mm2.56 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783623115
Side View
Table 59.0%Crown 35.9°Girdle: Slightly ThickPavilion 39.3°Culet: NoneDepth 55.4%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 28
Current: $2,004 USD|Low: $728 USD|High: $2,083 USD|Avg: $1,377 USD|-3.8%
MOH London
Retailer 2
October 29, 2026
Retailer 2$728 USD
MOH London$2,004 USD

5 data points across 2 retailers

2 retailers$728 USD to $2,004 USD

B+
Cheapest Retailer
-
$728 USD
Most Expensive
B
MOH London
LG783623115 · Oct 29
$2,004 USD
£1,578 GBP
View
1 more retailer has this diamond
Prices start from $728 USDSave up to $1,276 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+
2.56ct Oval
$728 USD