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Cushion|Lab Grown|IGI

1.15ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG712530525

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG712530525

Diamond specifications and retailer prices

From €380 EUR
$425 USD
As of October 29, 2026
Save €1,598 EUR (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €1,978 EUR at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.15ct lab-grown cushion diamond

This 1.15ct 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 LG712530525 or 712530525. Listed at 11 retailers as of October 28, 2026, with prices from €380 to €1,978, a €1,598 spread on the same certified stone. Brilliant Earth lists it at €1,978. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.15
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG712530525
Dimensions7.00 × 5.55 × 3.68 mm
L/W Ratio1.26
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
7.00 mm5.55 mm1.15 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG712530525
Side View
Table 60.0%Crown 33.2°Girdle: MED-VTKPavilion 35.5°Culet: NoneDepth 66.3%

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 29
Current: €1,978 EUR|Low: €228 EUR|High: €2,032 EUR|Avg: €949 EUR|-2.6%
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 28, 2026
Retailer 11€228 EUR
Retailer 6€380 EUR
Retailer 8€422 EUR
Retailer 9€461 EUR
Retailer 3€499 EUR
Retailer 2€666 EUR
Retailer 10€825 EUR
Retailer 5€1,096 EUR
Retailer 4€1,446 EUR
Retailer 12€1,486 EUR
Retailer 7€1,915 EUR
Brilliant Earth€1,978 EUR

28 data points across 12 retailers

11 retailers€380 EUR to €1,978 EUR

A
Cheapest Retailer
-
€380 EUR
$425 USD
A
Retailer 2
-
€422 EUR
$471 USD
View
A
Retailer 3
-
€461 EUR
View
A
Retailer 4
-
€499 EUR
$557 USD
View
A
Retailer 5
-
€666 EUR
A$1,145 AUD
View
A
Retailer 6
-
€825 EUR
$921 USD
View
B+
Retailer 7
-
€1,096 EUR
£964 GBP
View
Retailer 8
-
€1,446 EUR
A$2,486 AUD
View
Price last confirmed 25 days ago
Retailer 9
-
€1,486 EUR
$1,660 USD
View
Price last confirmed 14 days ago
B
Retailer 10
-
€1,915 EUR
$2,140 USD
View
Most Expensive
B
Brilliant Earth
14608178Y · Oct 28
€1,978 EUR
$2,210 USD
View
10 more retailers have this diamond
Prices start from €380 EURSave up to €1,598 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
1.15ct Cushion
€380 EUR