Cushion|Lab Grown|IGI

1.09ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG818653702

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818653702

Diamond specifications and retailer prices

From $484 USD
As of October 25, 2026
Save $1,926 USD (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,410 USD 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 very-good cut grade and certified by IGI LG818653702 or 818653702. Listed at 13 retailers as of October 25, 2026, with prices from $484 to $2,410, a $1,926 spread on the same certified stone. Brilliant Earth lists it at $2,410. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.09
Carat
D
Color
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818653702
Dimensions7.71 × 5.03 × 3.46 mm
L/W Ratio1.53
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
7.71 mm5.03 mm1.09 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818653702
Side View
Table 62.0%Crown 34.7°Girdle: MED-VTKPavilion 37.4°Culet: NoneDepth 68.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 25
Current: $2,410 USD|Low: $484 USD|High: $2,930 USD|Avg: $1,261 USD|-17.7%
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 30, 2026
Retailer 10$484 USD
Retailer 11$692 USD
Retailer 9$695 USD
Retailer 6$769 USD
Retailer 13$771 USD
Retailer 2$794 USD
Retailer 8$832 USD
Retailer 3$1,159 USD
Retailer 4$1,284 USD
Retailer 5$1,450 USD
Retailer 12$1,594 USD
Retailer 7$1,902 USD
Brilliant Earth$2,410 USD

39 data points across 13 retailers

13 retailers$484 USD to $2,410 USD

A
Cheapest Retailer
-
$484 USD
A
Retailer 2
-
$692 USD
View
A
Retailer 3
-
$695 USD
View
A
Retailer 4
-
$769 USD
€732 EUR
View
A
Retailer 5
-
$771 USD
View
A
Retailer 6
-
$794 USD
£625 GBP
View
A
Retailer 7
-
$832 USD
ZAR 13,448 ZAR
View
B+
Retailer 8
-
$1,159 USD
View
B+
Retailer 9
-
$1,284 USD
SGD 1,735 SGD
View
Retailer 10
-
$1,450 USD
View
Price last confirmed 11 days ago
B
Retailer 11
-
$1,594 USD
View
B
Retailer 12
-
$1,902 USD
£1,498 GBP
View
Most Expensive
B
Brilliant Earth
21421259A · Oct 30
$2,410 USD
View
12 more retailers have this diamond
Prices start from $484 USDSave up to $1,926 USD

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
$484 USD