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Cushion|Lab Grown|IGI

1.51ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG825661104

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG825661104

Diamond specifications and retailer prices

From €416 EUR
As of November 4, 2026
Save €2,113 EUR (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €2,530 EUR at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825661104 or 825661104. Listed at 17 retailers as of November 4, 2026, with prices from €416 to €2,530, a €2,113 spread on the same certified stone. Brilliant Earth lists it at €2,530. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle32.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825661104
Dimensions8.63 × 5.81 × 3.73 mm
L/W Ratio1.49
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
8.63 mm5.81 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825661104
Side View
Table 60.0%Crown 34°Girdle: STK-THKPavilion 32.9°Culet: NoneDepth 64.2%

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: Nov 4
Current: €2,530 EUR|Low: €395 EUR|High: €2,991 EUR|Avg: €1,170 EUR|-15.4%
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 5, 2026
Retailer 5€395 EUR
Retailer 8€416 EUR
Retailer 4€599 EUR
Retailer 7€660 EUR
Retailer 11€681 EUR
Retailer 13€793 EUR
Retailer 9€927 EUR
Retailer 10€996 EUR
Retailer 6€1,227 EUR
Retailer 2€1,300 EUR
Retailer 12€1,543 EUR
Retailer 3€2,330 EUR
Brilliant Earth€2,530 EUR

34 data points across 13 retailers

17 retailers€416 EUR to €2,530 EUR

Retailer 1
-
€395 EUR
Price last confirmed 11 days ago
A
Retailer 2
-
€416 EUR
View
A
Retailer 3
-
€599 EUR
View
A
Retailer 4
-
€633 EUR
View
A
Retailer 5
-
€660 EUR
View
A
Retailer 6
-
€681 EUR
View
A
Retailer 7
-
€793 EUR
View
A
Retailer 8
-
€913 EUR
View
A
Retailer 9
-
€927 EUR
View
A
Retailer 10
-
€996 EUR
View
B+
Retailer 11
-
€1,227 EUR
View
B+
Retailer 12
-
€1,300 EUR
View
B+
Retailer 13
-
€1,306 EUR
View
B+
Retailer 14
-
€1,543 EUR
View
B
Retailer 15
-
€2,241 EUR
View
Retailer 16
-
€2,330 EUR
View
Price last confirmed 17 days ago
Most Expensive
B
Brilliant Earth
21612279A · Nov 4
€2,530 EUR
$2,850 USD
View
16 more retailers have this diamond
Prices start from €416 EURSave up to €2,113 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
1.51ct Cushion
€416 EUR