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Cushion|Lab Grown|IGI

1.75ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG764689718

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG764689718

Diamond specifications and retailer prices

From £287 GBP
$382 USD
As of October 28, 2026
Save £2,229 GBP (89%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,516 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.75ct lab-grown cushion diamond

This 1.75ct 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 LG764689718 or 764689718. Listed at 19 retailers as of October 28, 2026, with prices from £287 to £2,516, a £2,229 spread on the same certified stone. Brilliant Earth lists it at £2,516. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.75
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.7°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG764689718
Dimensions6.41 × 6.41 × 4.18 mm
L/W Ratio1.00
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
6.41 mm6.41 mm1.75 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG764689718
Side View
Table 61.0%Crown 31.7°Girdle: MED-STKPavilion 36.5°Culet: NoneDepth 65.2%

Caratlytics Score

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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: £2,516 GBP|Low: £287 GBP|High: £2,523 GBP|Avg: £971 GBP|-0.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 29, 2026
Retailer 5£287 GBP
Retailer 11£330 GBP
Retailer 16£481 GBP
Retailer 7£512 GBP
Retailer 10£517 GBP
Retailer 13£547 GBP
Retailer 2£571 GBP
Retailer 3£574 GBP
Retailer 12£739 GBP
Retailer 15£770 GBP
Retailer 4£1,005 GBP
Retailer 8£1,017 GBP
Retailer 6£1,055 GBP
Retailer 17£1,203 GBP
Retailer 14£1,277 GBP
Retailer 9£1,358 GBP
Brilliant Earth£2,516 GBP

35 data points across 17 retailers

19 retailers£287 GBP to £2,516 GBP

A
Cheapest Retailer
-
£287 GBP
$382 USD
Final sale: no returns
A
Retailer 2
-
£330 GBP
View
A
Retailer 3
-
£481 GBP
$640 USD
View
A
Retailer 4
-
£512 GBP
$682 USD
View
A
Retailer 5
-
£517 GBP
€656 EUR
View
A
Retailer 6
-
£547 GBP
ZAR 11,767 ZAR
View
A
Retailer 7
-
£571 GBP
View
A
Retailer 8
-
£574 GBP
$764 USD
View
A
Retailer 9
-
£739 GBP
A$1,513 AUD
View
A
Retailer 10
-
£770 GBP
$1,025 USD
View
A
Retailer 11
-
£1,005 GBP
$1,339 USD
View
A
Retailer 12
-
£1,017 GBP
SGD 1,831 SGD
View
A
Retailer 13
-
£1,055 GBP
$1,405 USD
View
A
Retailer 14
-
£1,120 GBP
$1,492 USD
View
A
Retailer 15
-
£1,203 GBP
$1,602 USD
View
B+
Retailer 16
-
£1,277 GBP
View
Retailer 17
-
£1,358 GBP
A$2,783 AUD
View
Price last confirmed 24 days ago
Retailer 18
-
£1,396 GBP
View
Price last confirmed 21 days ago
Most Expensive
B
Brilliant Earth
17358738A · Oct 29
£2,516 GBP
$3,350 USD
View
18 more retailers have this diamond
Prices start from £287 GBPSave up to £2,229 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
1.75ct Cushion
£287 GBP