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Cushion|Lab Grown|IGI

3.50ct E SI1 Cushion Lab Grown Diamond

VG • E/SI1 • IGI LG807652606

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG807652606

Diamond specifications and retailer prices

From $736 SGD
HK$4,500 HKD
As of October 30, 2026
Save $2,805 SGD (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,541 SGD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.5ct lab-grown cushion diamond

This 3.5ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG807652606 or 807652606. Listed at 13 retailers as of October 30, 2026, with prices from $736 to $3,541, a $2,805 spread on the same certified stone. Brilliant Earth lists it at $3,541. 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

3.50
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle29.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG807652606
Dimensions10.68 × 7.54 × 4.74 mm
L/W Ratio1.42
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.68 mm7.54 mm3.50 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG807652606
Side View
Table 67.0%Crown 36.4°Girdle: MED-THKPavilion 29.4°Culet: NoneDepth 62.9%

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: $3,541 SGD|Low: $614 SGD|High: $6,673 SGD|Avg: $1,881 SGD|-46.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 31, 2026
Retailer 5$614 SGD
Retailer 8$736 SGD
Retailer 11$836 SGD
Retailer 10$1,029 SGD
Retailer 7$1,034 SGD
Retailer 14$1,073 SGD
Retailer 4$1,089 SGD
Retailer 12$1,117 SGD
Retailer 2$1,627 SGD
Retailer 13$1,727 SGD
Retailer 9$2,141 SGD
Retailer 3$2,505 SGD
Retailer 6$3,426 SGD
Brilliant Earth$3,541 SGD

36 data points across 14 retailers

13 retailers$736 SGD to $3,541 SGD

A
Cheapest Retailer
-
$736 SGD
HK$4,500 HKD
A
Retailer 2
-
$836 SGD
£515 GBP
View
B+
Retailer 3
-
$1,029 SGD
$805 USD
View
A
Retailer 4
-
$1,034 SGD
€770 EUR
View
B
Retailer 5
-
$1,073 SGD
$839 USD
View
A
Retailer 6
-
$1,089 SGD
$852 USD
View
A
Retailer 7
-
$1,117 SGD
£688 GBP
View
B+
Retailer 8
-
$1,627 SGD
$1,273 USD
View
B+
Retailer 9
-
$1,727 SGD
$1,351 USD
View
B+
Retailer 10
-
$2,141 SGD
View
B+
Retailer 11
-
$2,505 SGD
£1,543 GBP
View
B
Retailer 12
-
$3,426 SGD
$2,680 USD
View
Most Expensive
B
Brilliant Earth
20143830A · Oct 30
$3,541 SGD
$2,770 USD
View
12 more retailers have this diamond
Prices start from $736 SGDSave up to $2,805 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
3.50ct Cushion
$736 SGD