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Cushion|Lab Grown|IGI

1.09ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG683592970

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG683592970

Diamond specifications and retailer prices

From $323 USD
As of October 28, 2026
Save $1,353 USD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,676 USD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.09ct lab-grown cushion diamond

This 1.09ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG683592970 or 683592970. Listed at 14 retailers as of October 27, 2026, with prices from $323 to $1,676, a $1,353 spread on the same certified stone. Queensmith lists it at $1,676. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683592970
Dimensions7.45 × 5.37 × 3.27 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.45 mm5.37 mm1.09 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683592970
Side View
Table 64.0%Crown 34.8°Girdle: THK-VTKPavilion 35.4°Culet: NoneDepth 60.9%

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 28
Current: $635 USD|Low: $323 USD|High: $2,169 USD|Avg: $877 USD|-25.7%
Retailer 1
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
October 30, 2026
Retailer 14$323 USD
Retailer 11$359 USD
Retailer 4$482 USD
Retailer 10$485 USD
Retailer 7$583 USD
Retailer 3$602 USD
Retailer 9$617 USD
Retailer 1$635 USD
Retailer 2$671 USD
Retailer 8$876 USD
Retailer 6$1,203 USD
Retailer 12$1,360 USD
Retailer 13$1,447 USD
Retailer 5$1,480 USD

40 data points across 14 retailers

14 retailers$323 USD to $1,676 USD

A
Cheapest Retailer
-
$323 USD
Final sale: no returns
A
Retailer 2
-
$482 USD
View
A
Retailer 3
-
$485 USD
View
A
Retailer 4
-
$583 USD
€555 EUR
View
A
Retailer 5
-
$602 USD
View
A
Retailer 6
-
$617 USD
ZAR 9,970 ZAR
View
A
Retailer 7
-
$635 USD
£500 GBP
View
A
Retailer 8
-
$671 USD
View
A
Retailer 9
-
$876 USD
A$1,348 AUD
View
B+
Retailer 10
-
$1,203 USD
View
Retailer 11
-
$1,360 USD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
$1,447 USD
£1,139 GBP
View
B+
Retailer 13
-
$1,480 USD
View
Most Expensive
B
Queensmith
LG683592970 · Oct 27
$1,676 USD
£1,320 GBP
View
13 more retailers have this diamond
Prices start from $323 USDSave up to $1,353 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
$323 USD