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Cushion|Lab Grown|IGI

1.51ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG782688901

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG782688901

Diamond specifications and retailer prices

From £310 GBP
As of November 4, 2026
Save £2,156 GBP (87%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,467 GBP at Do Amore Diamonds · As of November 4, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG782688901 or 782688901. Listed at 17 retailers as of November 4, 2026, with prices from £310 to £2,467, a £2,156 spread on the same certified stone. Do Amore Diamonds lists it at £2,467. 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
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782688901
Dimensions7.87 × 6.03 × 4.03 mm
L/W Ratio1.31
Girdle conditionFaceted
Culet sizePointed
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
7.87 mm6.03 mm1.51 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782688901
Side View
Table 60.0%Crown 34.6°Girdle: MED-STKPavilion 35.8°Culet: NoneDepth 66.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £2,467 GBP|Low: £310 GBP|High: £2,467 GBP|Avg: £1,122 GBP
Do Amore Diamonds
Retailer 2
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Retailer 12
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Retailer 17
November 5, 2026
Retailer 8£310 GBP
Retailer 14£456 GBP
Retailer 9£550 GBP
Retailer 5£587 GBP
Retailer 6£597 GBP
Retailer 2£615 GBP
Retailer 13£655 GBP
Retailer 11£886 GBP
Retailer 12£905 GBP
Retailer 4£1,106 GBP
Retailer 17£1,289 GBP
Retailer 7£1,335 GBP
Retailer 3£1,356 GBP
Retailer 10£1,392 GBP
Retailer 15£1,795 GBP
Retailer 16£1,841 GBP
Do Amore Diamonds£2,467 GBP

44 data points across 17 retailers

17 retailers£310 GBP to £2,467 GBP

A
Cheapest Retailer
-
£310 GBP
Final sale: no returns
A
Retailer 2
-
£456 GBP
View
A
Retailer 3
-
£550 GBP
View
A
Retailer 4
-
£587 GBP
View
A
Retailer 5
-
£597 GBP
View
A
Retailer 6
-
£615 GBP
View
A
Retailer 7
-
£655 GBP
View
A
Retailer 8
-
£886 GBP
View
A
Retailer 9
-
£905 GBP
View
B+
Retailer 10
-
£1,106 GBP
View
B+
Retailer 11
-
£1,289 GBP
View
B+
Retailer 12
-
£1,335 GBP
View
B+
Retailer 13
-
£1,356 GBP
View
B+
Retailer 14
-
£1,392 GBP
View
B+
Retailer 15
-
£1,795 GBP
View
Retailer 16
-
£1,841 GBP
View
Price last confirmed 17 days ago
Most Expensive
B
Do Amore Diamonds
27-0084420B7 · Nov 4
£2,467 GBP
$3,330 USD
View
16 more retailers have this diamond
Prices start from £310 GBPSave up to £2,156 GBP

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
£310 GBP