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Cushion|Lab Grown|IGI

1.51ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG818683409

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818683409

Diamond specifications and retailer prices

From €662 EUR
$740 USD
As of October 31, 2026
Save €3,312 EUR (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €3,974 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818683409 or 818683409. Listed at 12 retailers as of October 31, 2026, with prices from €662 to €3,974, a €3,312 spread on the same certified stone. Do Amore Diamonds lists it at €3,974. 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
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818683409
Dimensions7.44 × 6.10 × 4.31 mm
L/W Ratio1.22
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
7.44 mm6.10 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818683409
Side View
Table 55.0%Crown 33.8°Girdle: STK-THKPavilion 39°Culet: NoneDepth 70.7%

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: Oct 31
Current: €3,974 EUR|Low: €662 EUR|High: €5,245 EUR|Avg: €2,022 EUR|-24.2%
Do Amore Diamonds
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 31, 2026
Retailer 14€662 EUR
Retailer 9€682 EUR
Retailer 3€767 EUR
Retailer 8€863 EUR
Retailer 2€982 EUR
Retailer 4€995 EUR
Retailer 11€1,585 EUR
Retailer 13€2,372 EUR
Retailer 12€2,504 EUR
Retailer 6€2,659 EUR
Retailer 10€2,662 EUR
Retailer 5€2,712 EUR
Retailer 7€2,784 EUR
Do Amore Diamonds€3,974 EUR

31 data points across 14 retailers

12 retailers€662 EUR to €3,974 EUR

A
Cheapest Retailer
-
€662 EUR
$740 USD
A
Retailer 2
-
€682 EUR
$762 USD
View
A
Retailer 3
-
€767 EUR
$857 USD
View
A
Retailer 4
-
€863 EUR
$964 USD
View
A
Retailer 5
-
€982 EUR
View
Retailer 6
-
€995 EUR
$1,112 USD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
€1,585 EUR
$1,771 USD
View
Retailer 8
-
€2,372 EUR
$2,650 USD
View
Price last confirmed 11 days ago
B+
Retailer 9
-
€2,504 EUR
$2,797 USD
View
B+
Retailer 10
-
€2,662 EUR
£2,342 GBP
View
B
Retailer 11
-
€2,784 EUR
$3,110 USD
View
Most Expensive
B
Do Amore Diamonds
27-63AF0D6C9 · Oct 31
€3,974 EUR
$4,440 USD
View
11 more retailers have this diamond
Prices start from €662 EURSave up to €3,312 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
€662 EUR