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Cushion|Lab Grown|IGI

3.51ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG749583773

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG749583773

Diamond specifications and retailer prices

From $3,561 SGD
$2,778 USD
As of October 29, 2026
Save $8,923 SGD (71%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $12,484 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.51ct lab-grown cushion diamond

This 3.51ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG749583773 or 749583773. Listed at 22 retailers as of October 29, 2026, with prices from $3,561 to $12,484, a $8,923 spread on the same certified stone. Brilliant Earth lists it at $12,484. 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

3.51
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.6°
Pavilion angle31.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG749583773
Dimensions8.52 × 8.11 × 5.37 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.52 mm8.11 mm3.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG749583773
Side View
Table 64.0%Crown 38.6°Girdle: THK-VTKPavilion 31.4°Culet: NoneDepth 66.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $12,484 SGD|Low: $2,348 SGD|High: $12,484 SGD|Avg: $6,335 SGD|+36.0%
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
Retailer 15
October 30, 2026
Retailer 4$3,408 SGD
Retailer 6$3,561 SGD
Retailer 13$3,595 SGD
Retailer 15$3,621 SGD
Retailer 2$4,692 SGD
Retailer 11$4,870 SGD
Retailer 14$4,873 SGD
Retailer 9$5,434 SGD
Retailer 7$6,465 SGD
Retailer 12$7,707 SGD
Retailer 8$7,913 SGD
Retailer 3$8,645 SGD
Retailer 10$9,295 SGD
Retailer 5$11,405 SGD
Brilliant Earth$12,484 SGD

45 data points across 15 retailers

22 retailers$3,561 SGD to $12,484 SGD

Retailer 1
-
$3,408 SGD
$2,659 USD
Price last confirmed 19 days ago
A
Retailer 2
-
$3,561 SGD
$2,778 USD
View
A
Retailer 3
-
$3,595 SGD
$2,805 USD
View
Final sale: no returns
A
Retailer 4
-
$3,621 SGD
$2,825 USD
View
A
Retailer 5
-
$3,937 SGD
HK$24,000 HKD
View
A
Retailer 6
-
$4,692 SGD
£2,882 GBP
View
A
Retailer 7
-
$4,870 SGD
$3,800 USD
View
A
Retailer 8
-
$4,873 SGD
$3,802 USD
View
A
Retailer 9
-
$5,434 SGD
€4,038 EUR
View
A
Retailer 10
-
$5,774 SGD
$4,505 USD
View
B+
Retailer 11
-
$6,465 SGD
£3,972 GBP
View
Retailer 12
-
$7,707 SGD
A$9,251 AUD
View
Price last confirmed 7 days ago
B+
Retailer 13
-
$7,913 SGD
ZAR 99,736 ZAR
View
B+
Retailer 14
-
$8,459 SGD
$6,600 USD
View
B+
Retailer 15
-
$8,645 SGD
$6,745 USD
View
B+
Retailer 16
-
$9,098 SGD
$7,098 USD
View
B+
Retailer 17
-
$9,295 SGD
£5,710 GBP
View
B+
Retailer 18
-
$9,522 SGD
$7,429 USD
View
B+
Retailer 19
-
$10,086 SGD
$7,869 USD
View
B
Retailer 20
-
$11,405 SGD
View
B
Retailer 21
-
$11,903 SGD
$9,287 USD
View
Most Expensive
B
Brilliant Earth
16596317A · Oct 29
$12,484 SGD
$9,740 USD
View
21 more retailers have this diamond
Prices start from $3,561 SGDSave up to $8,923 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
3.51ct Cushion
$3,561 SGD