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Cushion|Lab Grown|IGI

4.08ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG828639977

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG828639977

Diamond specifications and retailer prices

From $1,804 SGD
$1,411 USD
As of October 30, 2026
Save $6,416 SGD (78%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $8,220 SGD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.08ct lab-grown cushion diamond

This 4.08ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG828639977 or 828639977. Listed at 4 retailers as of October 30, 2026, with prices from $1,804 to $8,220, a $6,416 spread on the same certified stone. Do Amore Diamonds lists it at $8,220. 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

4.08
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.3°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828639977
Dimensions11.21 × 8.28 × 5.61 mm
L/W Ratio1.35
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.21 mm8.28 mm4.08 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG828639977
Side View
Table 63.0%Crown 36.3°Girdle: MED-THKPavilion 38.4°CuletDepth 67.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $8,220 SGD|Low: $1,336 SGD|High: $8,527 SGD|Avg: $4,746 SGD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
October 31, 2026
Retailer 4$1,804 SGD
Retailer 3$1,809 SGD
Retailer 2$4,630 SGD
Do Amore Diamonds$8,220 SGD

19 data points across 4 retailers

4 retailers$1,804 SGD to $8,220 SGD

B+
Cheapest Retailer
-
$1,804 SGD
$1,411 USD
B+
Retailer 2
-
$1,809 SGD
$1,415 USD
View
B
Retailer 3
-
$4,630 SGD
£2,852 GBP
View
Most Expensive
B
Do Amore Diamonds
7-1791799 · Oct 31
$8,220 SGD
$6,430 USD
View
3 more retailers have this diamond
Prices start from $1,804 SGDSave up to $6,416 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.

B+
4.08ct Cushion
$1,804 SGD