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Cushion|Lab Grown|IGI

1.09ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG784646404

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG784646404

Diamond specifications and retailer prices

From $378 USD
As of October 30, 2026
Save $2,432 USD (87%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,810 USD at Brilliant Earth · As of October 29, 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 LG784646404 or 784646404. Listed at 10 retailers as of October 29, 2026, with prices from $378 to $2,810, a $2,432 spread on the same certified stone. Brilliant Earth lists it at $2,810. 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 angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784646404
Dimensions7.13 × 5.49 × 3.75 mm
L/W Ratio1.30
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
7.13 mm5.49 mm1.09 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784646404
Side View
Table 63.0%Crown 34.7°Girdle: MED-STKPavilion 38°Culet: NoneDepth 68.3%

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: $2,810 USD|Low: $270 USD|High: $2,930 USD|Avg: $1,246 USD|-2.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 12$378 USD
Retailer 11$530 USD
Retailer 7$533 USD
Retailer 6$535 USD
Retailer 9$622 USD
Retailer 2$717 USD
Retailer 3$882 USD
Retailer 10$1,435 USD
Retailer 5$1,694 USD
Retailer 4$1,822 USD
Retailer 8$2,730 USD
Brilliant Earth$2,810 USD

27 data points across 12 retailers

10 retailers$378 USD to $2,810 USD

A
Cheapest Retailer
-
$378 USD
Final sale: no returns
A
Retailer 2
-
$530 USD
View
A
Retailer 3
-
$533 USD
View
A
Retailer 4
-
$535 USD
View
A
Retailer 5
-
$622 USD
View
A
Retailer 6
-
$717 USD
€683 EUR
View
Retailer 7
-
$1,435 USD
View
Price last confirmed 11 days ago
B
Retailer 8
-
$1,694 USD
£1,334 GBP
View
B
Retailer 9
-
$2,730 USD
View
Most Expensive
B
Brilliant Earth
20107835Y · Oct 29
$2,810 USD
View
9 more retailers have this diamond
Prices start from $378 USDSave up to $2,432 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
$378 USD