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Cushion|Lab Grown|IGI

1.51ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG818639784

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818639784

Diamond specifications and retailer prices

From €591 EUR
£520 GBP
As of October 30, 2026
Save €3,025 EUR (84%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €3,616 EUR at Do Amore Diamonds · As of October 29, 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 LG818639784 or 818639784. Listed at 9 retailers as of October 29, 2026, with prices from €591 to €3,616, a €3,025 spread on the same certified stone. Do Amore Diamonds lists it at €3,616. 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 angle38°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818639784
Dimensions8.33 × 5.72 × 3.91 mm
L/W Ratio1.46
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
8.33 mm5.72 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818639784
Side View
Table 66.0%Crown 38°Girdle: STK-THKPavilion 40°Culet: NoneDepth 68.4%

Caratlytics Score

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A+
Exceptional
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 30
Current: €3,616 EUR|Low: €506 EUR|High: €4,287 EUR|Avg: €1,830 EUR|-7.6%
Do Amore Diamonds
Retailer 2
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Retailer 17
October 30, 2026
Retailer 4€506 EUR
Retailer 6€549 EUR
Retailer 10€591 EUR
Retailer 14€791 EUR
Retailer 12€832 EUR
Retailer 5€1,046 EUR
Retailer 16€1,220 EUR
Retailer 15€1,318 EUR
Retailer 8€1,398 EUR
Retailer 13€1,644 EUR
Retailer 3€2,296 EUR
Retailer 17€2,305 EUR
Retailer 11€2,338 EUR
Retailer 7€2,756 EUR
Retailer 2€2,784 EUR
Retailer 9€3,283 EUR
Do Amore Diamonds€3,616 EUR

19 data points across 17 retailers

9 retailers€591 EUR to €3,616 EUR

A+
Cheapest Retailer
-
€591 EUR
£520 GBP
A
Retailer 2
-
€791 EUR
$884 USD
View
A
Retailer 3
-
€832 EUR
$930 USD
View
B+
Retailer 4
-
€1,318 EUR
$1,472 USD
View
B+
Retailer 5
-
€1,644 EUR
$1,837 USD
View
Retailer 6
-
€2,296 EUR
$2,565 USD
View
Price last confirmed 52 days ago
B+
Retailer 7
-
€2,338 EUR
£2,057 GBP
View
B+
Retailer 8
-
€2,784 EUR
$3,110 USD
View
Most Expensive
B
Do Amore Diamonds
27-D2E4A9CD4 · Oct 29
€3,616 EUR
$4,040 USD
View
8 more retailers have this diamond
Prices start from €591 EURSave up to €3,025 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
€591 EUR