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Cushion|Lab Grown|IGI

1.09ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG816624103

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

Certificate IGI LG816624103

Diamond specifications and retailer prices

From $502 SGD
$393 USD
As of October 30, 2026
Save $2,208 SGD (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,710 SGD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.09ct lab-grown cushion diamond

This 1.09ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816624103 or 816624103. Listed at 13 retailers as of October 30, 2026, with prices from $502 to $2,710, a $2,208 spread on the same certified stone. Brilliant Earth lists it at $2,710. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816624103
Dimensions6.25 × 6.10 × 3.89 mm
L/W Ratio1.02
Girdle conditionFaceted
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
6.25 mm6.10 mm1.09 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816624103
Side View
Table 61.0%Crown 35.2°Girdle: THN-STKPavilion 39.8°Culet: NoneDepth 63.8%

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: $2,710 SGD|Low: $369 SGD|High: $3,733 SGD|Avg: $1,444 SGD|-27.4%
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
October 31, 2026
Retailer 11$502 SGD
Retailer 4$575 SGD
Retailer 6$844 SGD
Retailer 10$868 SGD
Retailer 13$897 SGD
Retailer 7$906 SGD
Retailer 8$960 SGD
Retailer 2$1,005 SGD
Retailer 3$1,849 SGD
Retailer 5$1,854 SGD
Retailer 9$2,148 SGD
Retailer 12$2,185 SGD
Brilliant Earth$2,710 SGD

35 data points across 13 retailers

13 retailers$502 SGD to $2,710 SGD

A
Cheapest Retailer
-
$502 SGD
$393 USD
Final sale: no returns
A
Retailer 2
-
$575 SGD
$450 USD
View
A
Retailer 3
-
$844 SGD
$660 USD
View
A
Retailer 4
-
$868 SGD
$679 USD
View
A
Retailer 5
-
$897 SGD
$702 USD
View
A
Retailer 6
-
$906 SGD
€675 EUR
View
A
Retailer 7
-
$960 SGD
ZAR 12,131 ZAR
View
A
Retailer 8
-
$1,005 SGD
£619 GBP
View
B+
Retailer 9
-
$1,849 SGD
$1,446 USD
View
Retailer 10
-
$1,854 SGD
$1,450 USD
View
Price last confirmed 12 days ago
B
Retailer 11
-
$2,148 SGD
$1,680 USD
View
B+
Retailer 12
-
$2,185 SGD
£1,346 GBP
View
Most Expensive
B
Brilliant Earth
21018849A · Oct 30
$2,710 SGD
$2,120 USD
View
12 more retailers have this diamond
Prices start from $502 SGDSave up to $2,208 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
1.09ct Cushion
$502 SGD