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Cushion|Lab Grown|IGI

1.51ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG696549525

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG696549525

Diamond specifications and retailer prices

From $797 USD
As of October 28, 2026
Save $2,713 USD (77%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,510 USD at Brilliant Earth · As of October 29, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG696549525 or 696549525. Listed at 19 retailers as of October 28, 2026, with prices from $797 to $3,510, a $2,713 spread on the same certified stone. Brilliant Earth lists it at $3,510. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG696549525
Dimensions8.54 × 5.67 × 3.91 mm
L/W Ratio1.51
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.54 mm5.67 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG696549525
Side View
Table 66.0%Crown 35.3°Girdle: STK-THKPavilion 38.8°Culet: NoneDepth 69.0%

Caratlytics Score

How it works →
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 28
Current: $3,510 USD|Low: $797 USD|High: $3,510 USD|Avg: $1,993 USD
Brilliant Earth
Retailer 2
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Retailer 19
October 30, 2026
Retailer 9$797 USD
Retailer 5$826 USD
Retailer 7$923 USD
Retailer 18$925 USD
Retailer 19$1,302 USD
Retailer 2$1,324 USD
Retailer 12$1,390 USD
Retailer 14$1,518 USD
Retailer 3$1,709 USD
Retailer 17$1,974 USD
Retailer 15$2,054 USD
Retailer 8$2,560 USD
Retailer 16$2,570 USD
Retailer 10$2,827 USD
Retailer 11$2,846 USD
Retailer 4$2,904 USD
Retailer 6$3,192 USD
Retailer 13$3,259 USD
Brilliant Earth$3,510 USD

42 data points across 19 retailers

19 retailers$797 USD to $3,510 USD

A
Cheapest Retailer
-
$797 USD
Final sale: no returns
Retailer 2
-
$826 USD
View
Price last confirmed 12 days ago
A
Retailer 3
-
$923 USD
View
A
Retailer 4
-
$925 USD
View
A
Retailer 5
-
$1,302 USD
View
A
Retailer 6
-
$1,324 USD
£1,042 GBP
View
A
Retailer 7
-
$1,390 USD
€1,324 EUR
View
B+
Retailer 8
-
$1,518 USD
ZAR 24,517 ZAR
View
Retailer 9
-
$1,709 USD
A$2,629 AUD
View
Price last confirmed 22 days ago
B+
Retailer 10
-
$1,974 USD
View
Retailer 11
-
$2,054 USD
A$3,160 AUD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
$2,560 USD
£2,016 GBP
View
Retailer 13
-
$2,570 USD
View
Price last confirmed 8 days ago
B
Retailer 14
-
$2,827 USD
View
B
Retailer 15
-
$2,846 USD
View
B+
Retailer 16
-
$2,904 USD
View
B
Retailer 17
-
$3,257 USD
View
B
Retailer 18
-
$3,259 USD
£2,566 GBP
View
Most Expensive
B
Brilliant Earth
16916049A · Oct 29
$3,510 USD
View
18 more retailers have this diamond
Prices start from $797 USDSave up to $2,713 USD

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
$797 USD