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Cushion|Lab Grown|IGI

1.51ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG799671514

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG799671514

Diamond specifications and retailer prices

From €762 EUR
$851 USD
As of October 30, 2026
Save €2,711 EUR (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €3,473 EUR at Brilliant Earth · As of October 31, 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 LG799671514 or 799671514. Listed at 12 retailers as of October 30, 2026, with prices from €762 to €3,473, a €2,711 spread on the same certified stone. Brilliant Earth lists it at €3,473. 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 angle37.9°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799671514
Dimensions7.65 × 6.14 × 4.04 mm
L/W Ratio1.25
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
7.65 mm6.14 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799671514
Side View
Table 61.0%Crown 37.9°Girdle: MED-THKPavilion 34.9°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: Oct 30
Current: €3,473 EUR|Low: €762 EUR|High: €4,413 EUR|Avg: €2,047 EUR|-21.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 12€762 EUR
Retailer 9€847 EUR
Retailer 7€894 EUR
Retailer 3€1,025 EUR
Retailer 2€1,078 EUR
Retailer 5€1,108 EUR
Retailer 11€1,725 EUR
Retailer 8€2,372 EUR
Retailer 4€2,448 EUR
Retailer 6€2,867 EUR
Retailer 10€2,942 EUR
Brilliant Earth€3,473 EUR

41 data points across 12 retailers

12 retailers€762 EUR to €3,473 EUR

A
Cheapest Retailer
-
€762 EUR
$851 USD
A
Retailer 2
-
€847 EUR
$946 USD
View
A
Retailer 3
-
€894 EUR
HK$7,800 HKD
View
A
Retailer 4
-
€1,025 EUR
$1,145 USD
View
A
Retailer 5
-
€1,078 EUR
£948 GBP
View
A
Retailer 6
-
€1,108 EUR
View
B+
Retailer 7
-
€1,725 EUR
$1,927 USD
View
Retailer 8
-
€2,372 EUR
$2,650 USD
View
Price last confirmed 11 days ago
B
Retailer 9
-
€2,448 EUR
$2,735 USD
View
Retailer 10
-
€2,867 EUR
£2,522 GBP
View
Price last confirmed 7 days ago
B
Retailer 11
-
€2,942 EUR
$3,287 USD
View
Most Expensive
B
Brilliant Earth
20869975Y · Oct 31
€3,473 EUR
$3,880 USD
View
11 more retailers have this diamond
Prices start from €762 EURSave up to €2,711 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
€762 EUR