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Cushion|Lab Grown|IGI

1.85ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG735510595

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG735510595

Diamond specifications and retailer prices

From £467 GBP
$622 USD
As of October 30, 2026
Save £2,432 GBP (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,899 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.85ct lab-grown cushion diamond

This 1.85ct 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 LG735510595 or 735510595. Listed at 18 retailers as of October 30, 2026, with prices from £467 to £2,899, a £2,432 spread on the same certified stone. Brilliant Earth lists it at £2,899. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.85
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735510595
Dimensions7.32 × 7.14 × 4.76 mm
L/W Ratio1.03
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
7.32 mm7.14 mm1.85 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735510595
Side View
Table 64.0%Crown 35.1°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 66.7%

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 30
Current: £2,899 GBP|Low: £467 GBP|High: £3,086 GBP|Avg: £1,294 GBP|-3.3%
Brilliant Earth
Retailer 2
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Retailer 11
Retailer 12
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Retailer 18
October 30, 2026
Retailer 3£467 GBP
Retailer 10£551 GBP
Retailer 7£567 GBP
Retailer 14£597 GBP
Retailer 16£689 GBP
Retailer 11£792 GBP
Retailer 4£797 GBP
Retailer 2£806 GBP
Retailer 13£888 GBP
Retailer 17£1,166 GBP
Retailer 9£1,380 GBP
Retailer 15£1,511 GBP
Retailer 6£1,633 GBP
Retailer 18£1,677 GBP
Retailer 5£1,747 GBP
Retailer 8£1,798 GBP
Retailer 12£2,256 GBP
Brilliant Earth£2,899 GBP

43 data points across 18 retailers

18 retailers£467 GBP to £2,899 GBP

A
Cheapest Retailer
-
£467 GBP
$622 USD
Final sale: no returns
Retailer 2
-
£551 GBP
$734 USD
View
Price last confirmed 14 days ago
A
Retailer 3
-
£567 GBP
HK$5,900 HKD
View
A
Retailer 4
-
£597 GBP
$795 USD
View
A
Retailer 5
-
£689 GBP
$918 USD
View
A
Retailer 6
-
£792 GBP
€1,004 EUR
View
A
Retailer 7
-
£797 GBP
$1,062 USD
View
A
Retailer 8
-
£806 GBP
View
A
Retailer 9
-
£888 GBP
ZAR 19,111 ZAR
View
A
Retailer 10
-
£1,166 GBP
$1,553 USD
View
Retailer 11
-
£1,380 GBP
A$2,827 AUD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
£1,511 GBP
View
B+
Retailer 13
-
£1,633 GBP
SGD 2,939 SGD
View
B+
Retailer 14
-
£1,677 GBP
$2,233 USD
View
B+
Retailer 15
-
£1,747 GBP
$2,327 USD
View
B+
Retailer 16
-
£1,798 GBP
$2,395 USD
View
B+
Retailer 17
-
£2,256 GBP
View
Most Expensive
B
Brilliant Earth
19055718A · Oct 30
£2,899 GBP
$3,860 USD
View
17 more retailers have this diamond
Prices start from £467 GBPSave up to £2,432 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
1.85ct Cushion
£467 GBP