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Cushion|Lab Grown|IGI

3.08ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG828648369

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG828648369

Diamond specifications and retailer prices

From $639 SGD
$500 USD
As of October 29, 2026
Save $3,068 SGD (83%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,707 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.08ct lab-grown cushion diamond

This 3.08ct 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 LG828648369 or 828648369. Listed at 8 retailers as of October 29, 2026, with prices from $639 to $3,707, a $3,068 spread on the same certified stone. Brilliant Earth lists it at $3,707. 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

3.08
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.5°
Pavilion angle42.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828648369
Dimensions11.28 × 7.54 × 5.07 mm
L/W Ratio1.50
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.28 mm7.54 mm3.08 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828648369
Side View
Table 55.0%Crown 39.5°Girdle: MED-THKPavilion 42.5°Culet: LargeDepth 67.2%

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 29
Current: $3,707 SGD|Low: $639 SGD|High: $5,893 SGD|Avg: $1,876 SGD|-37.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 5$639 SGD
Retailer 8$840 SGD
Retailer 3$1,067 SGD
Retailer 6$1,110 SGD
Retailer 2$1,170 SGD
Retailer 9$1,372 SGD
Retailer 7$2,245 SGD
Retailer 4$2,603 SGD
Brilliant Earth$3,707 SGD

38 data points across 9 retailers

8 retailers$639 SGD to $3,707 SGD

A
Cheapest Retailer
-
$639 SGD
$500 USD
Final sale: no returns
Retailer 2
-
$840 SGD
$657 USD
View
Price last confirmed 14 days ago
A
Retailer 3
-
$1,067 SGD
$835 USD
View
B+
Retailer 4
-
$1,110 SGD
$868 USD
View
A
Retailer 5
-
$1,170 SGD
£721 GBP
View
B+
Retailer 6
-
$2,245 SGD
View
B
Retailer 7
-
$2,603 SGD
£1,603 GBP
View
Most Expensive
B
Brilliant Earth
21584624A · Oct 29
$3,707 SGD
$2,900 USD
View
7 more retailers have this diamond
Prices start from $639 SGDSave up to $3,068 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
3.08ct Cushion
$639 SGD