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Cushion|Lab Grown|IGI

1.51ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG804658152

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG804658152

Diamond specifications and retailer prices

From €491 EUR
$549 USD
As of October 26, 2026
Save €2,615 EUR (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €3,106 EUR at Brilliant Earth · As of October 30, 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804658152 or 804658152. Listed at 19 retailers as of October 26, 2026, with prices from €491 to €3,106, a €2,615 spread on the same certified stone. Brilliant Earth lists it at €3,106. 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 angle34.3°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804658152
Dimensions8.29 × 5.70 × 3.85 mm
L/W Ratio1.45
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
8.29 mm5.70 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804658152
Side View
Table 61.0%Crown 34.3°Girdle: MED-THKPavilion 33.9°Culet: NoneDepth 67.5%

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 26
Current: €3,106 EUR|Low: €491 EUR|High: €4,332 EUR|Avg: €1,443 EUR|-28.3%
Brilliant Earth
Retailer 2
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Retailer 11
Retailer 12
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Retailer 18
October 31, 2026
Retailer 4€491 EUR
Retailer 11€578 EUR
Retailer 10€584 EUR
Retailer 3€754 EUR
Retailer 12€820 EUR
Retailer 14€823 EUR
Retailer 5€849 EUR
Retailer 2€906 EUR
Retailer 13€936 EUR
Retailer 16€961 EUR
Retailer 7€1,269 EUR
Retailer 18€1,582 EUR
Retailer 17€1,776 EUR
Retailer 8€1,780 EUR
Retailer 6€1,965 EUR
Retailer 15€2,277 EUR
Retailer 9€2,394 EUR
Brilliant Earth€3,106 EUR

25 data points across 18 retailers

19 retailers€491 EUR to €3,106 EUR

A
Cheapest Retailer
-
€491 EUR
$549 USD
Final sale: no returns
A
Retailer 2
-
€578 EUR
£508 GBP
View
Retailer 3
-
€584 EUR
$652 USD
View
Price last confirmed 15 days ago
A
Retailer 4
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€754 EUR
$842 USD
View
A
Retailer 5
-
€820 EUR
View
A
Retailer 6
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€823 EUR
$920 USD
View
A
Retailer 7
-
€849 EUR
$948 USD
View
A
Retailer 8
-
€906 EUR
£797 GBP
View
A
Retailer 9
-
€936 EUR
ZAR 16,896 ZAR
View
A
Retailer 10
-
€961 EUR
$1,074 USD
View
A
Retailer 11
-
€1,269 EUR
$1,418 USD
View
B+
Retailer 12
-
€1,582 EUR
£1,392 GBP
View
B+
Retailer 13
-
€1,776 EUR
$1,984 USD
View
B+
Retailer 14
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€1,780 EUR
SGD 2,688 SGD
View
B+
Retailer 15
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€1,908 EUR
$2,132 USD
View
B+
Retailer 16
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€1,965 EUR
$2,195 USD
View
B+
Retailer 17
-
€2,277 EUR
£2,003 GBP
View
Retailer 18
-
€2,394 EUR
$2,675 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
21420935A · Oct 30
€3,106 EUR
$3,470 USD
View
18 more retailers have this diamond
Prices start from €491 EURSave up to €2,615 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
€491 EUR