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Cushion|Lab Grown|IGI

1.10ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG830603689

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

Certificate IGI LG830603689

Diamond specifications and retailer prices

From €403 EUR
$452 USD
As of November 1, 2026
Save €1,345 EUR (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,747 EUR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.1ct lab-grown cushion diamond

This 1.1ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG830603689 or 830603689. Listed at 16 retailers as of November 1, 2026, with prices from €403 to €1,747, a €1,345 spread on the same certified stone. Brilliant Earth lists it at €1,747. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.10
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830603689
Dimensions6.00 × 5.86 × 3.96 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
6.00 mm5.86 mm1.10 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830603689
Side View
Table 62.0%Crown 37.5°Girdle: STK-VTKPavilion 38.4°Culet: NoneDepth 67.6%

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: Nov 1
Current: €1,747 EUR|Low: €330 EUR|High: €2,006 EUR|Avg: €868 EUR|-12.5%
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
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 8€341 EUR
Retailer 3€403 EUR
Retailer 13€513 EUR
Retailer 12€573 EUR
Retailer 16€586 EUR
Retailer 14€607 EUR
Retailer 10€625 EUR
Retailer 9€648 EUR
Retailer 7€830 EUR
Retailer 2€925 EUR
Retailer 5€1,204 EUR
Retailer 15€1,364 EUR
Retailer 6€1,371 EUR
Retailer 4€1,427 EUR
Retailer 11€1,453 EUR
Brilliant Earth€1,747 EUR

34 data points across 16 retailers

16 retailers€403 EUR to €1,747 EUR

Retailer 1
-
€341 EUR
$382 USD
Price last confirmed 8 days ago
A
Retailer 2
-
€403 EUR
$452 USD
View
Final sale: no returns
A
Retailer 3
-
€513 EUR
$575 USD
View
A
Retailer 4
-
€573 EUR
View
A
Retailer 5
-
€586 EUR
$657 USD
View
A
Retailer 6
-
€607 EUR
$681 USD
View
A
Retailer 7
-
€625 EUR
ZAR 11,318 ZAR
View
A
Retailer 8
-
€648 EUR
£572 GBP
View
B+
Retailer 9
-
€830 EUR
A$1,432 AUD
View
B+
Retailer 10
-
€925 EUR
$1,037 USD
View
B+
Retailer 11
-
€1,204 EUR
$1,350 USD
View
B
Retailer 12
-
€1,364 EUR
A$2,354 AUD
View
B+
Retailer 13
-
€1,371 EUR
£1,211 GBP
View
B
Retailer 14
-
€1,427 EUR
$1,601 USD
View
B
Retailer 15
-
€1,453 EUR
$1,630 USD
View
Most Expensive
B
Brilliant Earth
21696517A · Nov 2
€1,747 EUR
$1,960 USD
View
15 more retailers have this diamond
Prices start from €403 EURSave up to €1,345 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
1.10ct Cushion
€403 EUR