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Cushion|Lab Grown|IGI

1.84ct F IF Cushion Lab Grown Diamond

EX • F/IF • IGI LG758517415

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG758517415

Diamond specifications and retailer prices

From £265 GBP
$356 USD
As of November 1, 2026
Save £1,873 GBP (88%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £2,139 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.84ct lab-grown cushion diamond

This 1.84ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG758517415 or 758517415. Listed at 20 retailers as of November 1, 2026, with prices from £265 to £2,139, a £1,873 spread on the same certified stone. Brilliant Earth lists it at £2,139. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.84
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG758517415
Dimensions8.56 × 6.41 × 4.26 mm
L/W Ratio1.34
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
8.56 mm6.41 mm1.84 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG758517415
Side View
Table 63.0%Crown 34.3°Girdle: MED-STKPavilion 37.4°Culet: NoneDepth 66.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £2,139 GBP|Low: £265 GBP|High: £2,139 GBP|Avg: £925 GBP
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 7
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Retailer 12
Retailer 13
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Retailer 18
November 2, 2026
Retailer 6£265 GBP
Retailer 15£436 GBP
Retailer 14£477 GBP
Retailer 8£478 GBP
Retailer 12£507 GBP
Retailer 11£525 GBP
Retailer 4£552 GBP
Retailer 17£686 GBP
Retailer 2£718 GBP
Retailer 9£940 GBP
Retailer 7£980 GBP
Retailer 5£1,074 GBP
Retailer 3£1,130 GBP
Retailer 18£1,147 GBP
Retailer 13£1,179 GBP
Retailer 16£1,348 GBP
Retailer 10£1,673 GBP
Brilliant Earth£2,139 GBP

41 data points across 18 retailers

20 retailers£265 GBP to £2,139 GBP

A
Cheapest Retailer
-
£265 GBP
$356 USD
Final sale: no returns
A
Retailer 2
-
£436 GBP
$585 USD
View
A
Retailer 3
-
£477 GBP
€609 EUR
View
A
Retailer 4
-
£478 GBP
$642 USD
View
A
Retailer 5
-
£507 GBP
ZAR 10,999 ZAR
View
A
Retailer 6
-
£525 GBP
View
A
Retailer 7
-
£552 GBP
$741 USD
View
A
Retailer 8
-
£686 GBP
A$1,416 AUD
View
A
Retailer 9
-
£718 GBP
$964 USD
View
A
Retailer 10
-
£940 GBP
SGD 1,705 SGD
View
A
Retailer 11
-
£980 GBP
$1,315 USD
View
A
Retailer 12
-
£1,040 GBP
$1,396 USD
View
A
Retailer 13
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£1,074 GBP
$1,441 USD
View
A
Retailer 14
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£1,130 GBP
$1,517 USD
View
A
Retailer 15
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£1,147 GBP
View
A
Retailer 16
-
£1,179 GBP
View
A
Retailer 17
-
£1,348 GBP
A$2,783 AUD
View
Retailer 18
-
£1,500 GBP
$2,013 USD
View
Price last confirmed 63 days ago
Retailer 19
-
£1,673 GBP
$2,245 USD
View
Price last confirmed 28 days ago
Most Expensive
B+
Brilliant Earth
17358760A · Nov 2
£2,139 GBP
$2,870 USD
View
19 more retailers have this diamond
Prices start from £265 GBPSave up to £1,873 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
1.84ct Cushion
£265 GBP