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Cushion|Lab Grown|IGI

4.05ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG804659510

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG804659510

Diamond specifications and retailer prices

From $5,653 SGD
$4,422 USD
As of October 30, 2026
Save $17,898 SGD (76%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $23,551 SGD at With Clarity · As of October 30, 2026
View at With Clarity

About this 4.05ct lab-grown cushion diamond

This 4.05ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804659510 or 804659510. Listed at 14 retailers as of October 30, 2026, with prices from $5,653 to $23,551, a $17,898 spread on the same certified stone. With Clarity lists it at $23,551. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.05
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804659510
Dimensions10.68 × 8.66 × 5.51 mm
L/W Ratio1.23
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
10.68 mm8.66 mm4.05 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804659510
Side View
Table 62.0%Crown 36.3°Girdle: MED-STKPavilion 34.4°Culet: NoneDepth 63.6%

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: Oct 30
Current: $14,177 SGD|Low: $5,653 SGD|High: $28,598 SGD|Avg: $12,653 SGD|-17.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
With Clarity
October 30, 2026
Retailer 11$5,653 SGD
Retailer 3$7,429 SGD
Retailer 13$7,793 SGD
Retailer 6$7,818 SGD
Retailer 2$9,125 SGD
Retailer 8$9,768 SGD
Retailer 10$10,016 SGD
Retailer 4$11,194 SGD
Retailer 7$12,670 SGD
Retailer 9$12,820 SGD
Retailer 1$14,177 SGD
Retailer 12$15,947 SGD
Retailer 5$21,128 SGD
With Clarity$23,551 SGD

41 data points across 14 retailers

14 retailers$5,653 SGD to $23,551 SGD

A
Cheapest Retailer
-
$5,653 SGD
$4,422 USD
A
Retailer 2
-
$7,429 SGD
HK$45,400 HKD
View
A
Retailer 3
-
$7,793 SGD
$6,096 USD
View
A
Retailer 4
-
$7,818 SGD
£4,816 GBP
View
A
Retailer 5
-
$9,125 SGD
$7,138 USD
View
A
Retailer 6
-
$9,768 SGD
€7,277 EUR
View
Retailer 7
-
$10,016 SGD
$7,835 USD
View
Price last confirmed 9 days ago
A
Retailer 8
-
$11,194 SGD
$8,756 USD
View
B+
Retailer 9
-
$12,670 SGD
ZAR 160,110 ZAR
View
B+
Retailer 10
-
$12,820 SGD
£7,896 GBP
View
B+
Retailer 11
-
$14,177 SGD
$11,090 USD
View
B+
Retailer 12
-
$15,947 SGD
$12,474 USD
View
B+
Retailer 13
-
$21,128 SGD
$16,527 USD
View
Most Expensive
B
With Clarity
804659510 · Oct 30
$23,551 SGD
$18,422 USD
View
13 more retailers have this diamond
Prices start from $5,653 SGDSave up to $17,898 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
4.05ct Cushion
$5,653 SGD