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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 €619 EUR
$692 USD
As of October 30, 2026
Save €1,538 EUR (71%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €2,157 EUR at Brilliant Earth · As of October 31, 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 30, 2026, with prices from €619 to €2,157, a €1,538 spread on the same certified stone. Brilliant Earth lists it at €2,157. 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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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €2,157 EUR|Low: €433 EUR|High: €2,623 EUR|Avg: €1,118 EUR|-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
November 1, 2026
Retailer 10€433 EUR
Retailer 11€619 EUR
Retailer 9€622 EUR
Retailer 7€682 EUR
Retailer 13€690 EUR
Retailer 6€711 EUR
Retailer 8€745 EUR
Retailer 3€1,037 EUR
Retailer 4€1,149 EUR
Retailer 5€1,298 EUR
Retailer 12€1,427 EUR
Retailer 2€1,694 EUR
Brilliant Earth€2,157 EUR

39 data points across 13 retailers

13 retailers€619 EUR to €2,157 EUR

Retailer 1
-
€433 EUR
$484 USD
Price last confirmed 7 days ago
A
Retailer 2
-
€619 EUR
$692 USD
View
A
Retailer 3
-
€622 EUR
$695 USD
View
A
Retailer 4
-
€682 EUR
View
A
Retailer 5
-
€690 EUR
$771 USD
View
A
Retailer 6
-
€711 EUR
£625 GBP
View
A
Retailer 7
-
€745 EUR
ZAR 13,448 ZAR
View
B+
Retailer 8
-
€1,037 EUR
$1,159 USD
View
B+
Retailer 9
-
€1,149 EUR
SGD 1,735 SGD
View
Retailer 10
-
€1,298 EUR
$1,450 USD
View
Price last confirmed 13 days ago
B
Retailer 11
-
€1,427 EUR
$1,594 USD
View
B
Retailer 12
-
€1,694 EUR
£1,490 GBP
View
Most Expensive
B
Brilliant Earth
21421259A · Oct 31
€2,157 EUR
$2,410 USD
View
12 more retailers have this diamond
Prices start from €619 EURSave up to €1,538 EUR

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
€619 EUR