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Cushion|Lab Grown|IGI

3.09ct F IF Cushion Lab Grown Diamond

EX • F/IF • IGI LG681589668

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG681589668

Diamond specifications and retailer prices

From $1,636 SGD
As of November 4, 2026
Save $5,853 SGD (78%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $7,488 SGD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 3.09ct lab-grown cushion diamond

This 3.09ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG681589668 or 681589668. Listed at 19 retailers as of November 4, 2026, with prices from $1,636 to $7,488, a $5,853 spread on the same certified stone. Brilliant Earth lists it at $7,488. 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

3.09
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681589668
Dimensions8.41 × 8.41 × 5.41 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.41 mm8.41 mm3.09 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681589668
Side View
Table 61.0%Crown 37.3°Girdle: MED-STKPavilion 37.7°Culet: NoneDepth 64.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $7,488 SGD|Low: $1,364 SGD|High: $7,501 SGD|Avg: $3,874 SGD|-0.2%
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
Retailer 16
Retailer 17
Retailer 18
November 5, 2026
Retailer 10$1,614 SGD
Retailer 13$1,636 SGD
Retailer 8$2,124 SGD
Retailer 11$2,155 SGD
Retailer 16$2,245 SGD
Retailer 17$2,842 SGD
Retailer 15$3,188 SGD
Retailer 12$3,215 SGD
Retailer 14$3,282 SGD
Retailer 6$3,625 SGD
Retailer 4$3,895 SGD
Retailer 3$3,919 SGD
Retailer 5$4,197 SGD
Retailer 18$4,594 SGD
Retailer 2$4,776 SGD
Retailer 7$4,915 SGD
Retailer 9$5,667 SGD
Brilliant Earth$7,488 SGD

36 data points across 18 retailers

19 retailers$1,636 SGD to $7,488 SGD

Retailer 1
-
$1,614 SGD
Price last confirmed 24 days ago
A
Retailer 2
-
$1,636 SGD
View
A
Retailer 3
-
$2,124 SGD
View
A
Retailer 4
-
$2,155 SGD
View
A
Retailer 5
-
$2,245 SGD
View
Retailer 6
-
$2,420 SGD
View
Price last confirmed 24 days ago
A
Retailer 7
-
$2,842 SGD
View
A
Retailer 8
-
$3,188 SGD
View
A
Retailer 9
-
$3,215 SGD
View
Final sale: no returns
A
Retailer 10
-
$3,282 SGD
View
A
Retailer 11
-
$3,625 SGD
View
A
Retailer 12
-
$3,895 SGD
View
A
Retailer 13
-
$3,919 SGD
View
B+
Retailer 14
-
$4,197 SGD
View
B+
Retailer 15
-
$4,594 SGD
View
B+
Retailer 16
-
$4,776 SGD
View
B+
Retailer 17
-
$4,915 SGD
View
B+
Retailer 18
-
$5,667 SGD
View
Most Expensive
B
Brilliant Earth
13438341A · Nov 4
$7,488 SGD
$5,860 USD
View
18 more retailers have this diamond
Prices start from $1,636 SGDSave up to $5,853 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
3.09ct Cushion
$1,636 SGD