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Cushion|Lab Grown|IGI

4.11ct F SI1 Cushion Lab Grown Diamond

VG • F/SI1 • IGI LG653444038

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG653444038

Diamond specifications and retailer prices

From $1,290 SGD
$1,009 USD
As of November 2, 2026
Save $1,541 SGD (54%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $4,022 SGD at Rare Carat · As of October 19, 2026
View at Rare Carat

About this 4.11ct lab-grown cushion diamond

This 4.11ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG653444038 or 653444038. Listed at 3 retailers as of November 2, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.11
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG653444038
Dimensions9.42 × 9.38 × 6.11 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.42 mm9.38 mm4.11 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG653444038
Side View
Table 68.0%Crown 34.8°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 65.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: $4,022 SGD|Low: $1,290 SGD|High: $8,428 SGD|Avg: $4,381 SGD|+3.5%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 19, 2026
Retailer 3$1,290 SGD
Retailer 2$2,831 SGD
Rare Carat$4,022 SGD
Retailer 5$5,341 SGD
Retailer 4$8,428 SGD

4 data points across 5 retailers

3 retailers$1,290 SGD to $2,831 SGD

A
Cheapest Retailer
-
$1,290 SGD
$1,009 USD
B
Retailer 2
-
$2,831 SGD
$2,214 USD
View
Most Expensive
Rare Carat
LVA33-240J · Oct 19
$4,022 SGD
$3,145 USD
View
Price last confirmed 14 days ago
2 more retailers have this diamond
Prices start from $1,290 SGDSave up to $1,541 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
4.11ct Cushion
$1,290 SGD