Cushion|Lab Grown|IGI

1.54ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG816673339

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

Certificate IGI LG816673339

Diamond specifications and retailer prices

From €490 EUR
As of November 4, 2026
Save €1,769 EUR (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €4,092 EUR at Brilliant Earth · As of September 28, 2026
View at Brilliant Earth

About this 1.54ct lab-grown cushion diamond

This 1.54ct 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 LG816673339 or 816673339. Listed at 16 retailers as of November 4, 2026, with a 361% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816673339
Dimensions6.81 × 6.63 × 4.36 mm
L/W Ratio1.03
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
6.81 mm6.63 mm1.54 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816673339
Side View
Table 61.0%Crown 36.7°Girdle: STK-VTKPavilion 37.9°Culet: NoneDepth 65.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €2,259 EUR|Low: €490 EUR|High: €2,291 EUR|Avg: €1,307 EUR|-0.2%
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
November 5, 2026
Retailer 14€490 EUR
Retailer 8€572 EUR
Retailer 13€652 EUR
Retailer 4€750 EUR
Retailer 9€812 EUR
Retailer 7€893 EUR
Retailer 10€935 EUR
Retailer 5€986 EUR
Retailer 12€1,263 EUR
Retailer 6€1,767 EUR
Retailer 3€1,889 EUR
Retailer 2€2,029 EUR
Retailer 11€2,195 EUR
Retailer 1€2,259 EUR

43 data points across 14 retailers

16 retailers€490 EUR to €2,259 EUR

A
Cheapest Retailer
-
€490 EUR
Final sale: no returns
A
Retailer 2
-
€572 EUR
View
A
Retailer 3
-
€652 EUR
View
A
Retailer 4
-
€728 EUR
View
A
Retailer 5
-
€750 EUR
View
A
Retailer 6
-
€812 EUR
View
A
Retailer 7
-
€893 EUR
View
A
Retailer 8
-
€935 EUR
View
A
Retailer 9
-
€986 EUR
View
A
Retailer 10
-
€1,263 EUR
View
B+
Retailer 11
-
€1,767 EUR
View
B+
Retailer 12
-
€1,889 EUR
View
B+
Retailer 13
-
€2,029 EUR
View
B+
Retailer 14
-
€2,195 EUR
View
B+
Retailer 15
-
€2,259 EUR
View
Most Expensive
Brilliant Earth
20907181A · Sep 28
€4,092 EUR
$4,610 USD
View
Price last confirmed 37 days ago
15 more retailers have this diamond
Prices start from €490 EURSave up to €1,769 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
1.54ct Cushion
€490 EUR