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Marquise|Lab Grown|IGI

2.56ct D SI1 Marquise Lab Grown Diamond

ID • D/SI1 • IGI LG841611681

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG841611681

Diamond specifications and retailer prices

From $921 SGD
$720 USD
As of November 2, 2026
Save $2,410 SGD (72%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $3,331 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 2.56ct lab-grown marquise diamond

This 2.56ct lab-grown marquise 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 LG841611681 or 841611681. Listed at 7 retailers as of November 1, 2026, with prices from $921 to $3,331, a $2,410 spread on the same certified stone. MOH London lists it at $3,331. 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
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.8°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841611681
Dimensions14.23 × 7.11 × 4.37 mm
L/W Ratio2.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.23 mm7.11 mm2.56 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG841611681
Side View
Table 60.0%Crown 34.8°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 61.5%

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: Nov 2
Current: $3,331 SGD|Low: $921 SGD|High: $3,349 SGD|Avg: $1,504 SGD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 4$921 SGD
Retailer 2$977 SGD
Retailer 7$1,242 SGD
Retailer 3$1,318 SGD
Retailer 6$1,333 SGD
Retailer 5$2,060 SGD
MOH London$3,331 SGD

8 data points across 7 retailers

7 retailers$921 SGD to $3,331 SGD

A
Cheapest Retailer
-
$921 SGD
$720 USD
A
Retailer 2
-
$977 SGD
£602 GBP
View
B+
Retailer 3
-
$1,242 SGD
$971 USD
View
B+
Retailer 4
-
$1,318 SGD
£811 GBP
View
B+
Retailer 5
-
$1,333 SGD
$1,042 USD
View
B
Retailer 6
-
$2,060 SGD
$1,611 USD
View
Most Expensive
B
MOH London
LG841611681 · Nov 1
$3,331 SGD
£2,051 GBP
View
6 more retailers have this diamond
Prices start from $921 SGDSave up to $2,410 SGD

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
2.56ct Marquise
$921 SGD