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Cushion|Lab Grown|IGI

3.05ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG812619683

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG812619683

Diamond specifications and retailer prices

From $508 SGD
As of November 6, 2026
Save $2,773 SGD (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,281 SGD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 3.05ct lab-grown cushion diamond

This 3.05ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG812619683 or 812619683. Listed at 15 retailers as of November 6, 2026, with prices from $508 to $3,281, a $2,773 spread on the same certified stone. Brilliant Earth lists it at $3,281. 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

3.05
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812619683
Dimensions10.28 × 7.42 × 4.67 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.28 mm7.42 mm3.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812619683
Side View
Table 61.0%Crown 34.1°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $3,281 SGD|Low: $508 SGD|High: $3,281 SGD|Avg: $1,355 SGD
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
November 6, 2026
Retailer 12$508 SGD
Retailer 6$623 SGD
Retailer 8$686 SGD
Retailer 11$756 SGD
Retailer 2$869 SGD
Retailer 13$905 SGD
Retailer 7$975 SGD
Retailer 9$1,005 SGD
Retailer 14$1,325 SGD
Retailer 4$1,406 SGD
Retailer 15$1,415 SGD
Retailer 3$1,803 SGD
Retailer 10$2,197 SGD
Retailer 5$2,499 SGD
Brilliant Earth$3,281 SGD

30 data points across 15 retailers

15 retailers$508 SGD to $3,281 SGD

A
Cheapest Retailer
-
$508 SGD
Final sale: no returns
A
Retailer 2
-
$623 SGD
View
A
Retailer 3
-
$686 SGD
View
A
Retailer 4
-
$756 SGD
View
A
Retailer 5
-
$869 SGD
View
B+
Retailer 6
-
$905 SGD
View
Retailer 7
-
$975 SGD
View
Price last confirmed 12 days ago
A
Retailer 8
-
$1,005 SGD
View
A
Retailer 9
-
$1,325 SGD
View
A
Retailer 10
-
$1,406 SGD
View
B+
Retailer 11
-
$1,415 SGD
View
B+
Retailer 12
-
$1,803 SGD
View
B+
Retailer 13
-
$2,197 SGD
View
Retailer 14
-
$2,499 SGD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
20319639A · Nov 6
$3,281 SGD
$2,560 USD
View
14 more retailers have this diamond
Prices start from $508 SGDSave up to $2,773 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
3.05ct Cushion
$508 SGD