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Cushion|Lab Grown|IGI

1.91ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG836607908

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836607908

Diamond specifications and retailer prices

From £552 GBP
$740 USD
As of October 30, 2026
Save £2,836 GBP (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,388 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.91ct lab-grown cushion diamond

This 1.91ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836607908 or 836607908. Listed at 16 retailers as of October 28, 2026, with prices from £552 to £3,388, a £2,836 spread on the same certified stone. Rare Carat lists it at £3,388. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.91
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836607908
Dimensions9.30 × 6.39 × 4.10 mm
L/W Ratio1.46
Girdle conditionFaceted
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
9.30 mm6.39 mm1.91 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836607908
Side View
Table 63.0%Crown 35.5°Girdle: MED-THKPavilion 35.8°Culet: NoneDepth 64.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £3,388 GBP|Low: £552 GBP|High: £4,135 GBP|Avg: £1,616 GBP|-1.2%
Rare Carat
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
October 30, 2026
Retailer 3£552 GBP
Retailer 7£608 GBP
Retailer 6£668 GBP
Retailer 12£694 GBP
Retailer 2£897 GBP
Retailer 13£916 GBP
Retailer 9£969 GBP
Retailer 11£1,031 GBP
Retailer 14£1,249 GBP
Retailer 16£1,740 GBP
Retailer 4£1,844 GBP
Retailer 15£1,937 GBP
Retailer 5£1,997 GBP
Retailer 10£2,377 GBP
Rare Carat£3,388 GBP
Retailer 8£3,388 GBP

28 data points across 16 retailers

16 retailers£552 GBP to £3,388 GBP

A
Cheapest Retailer
-
£552 GBP
$740 USD
Final sale: no returns
Retailer 2
-
£608 GBP
$814 USD
View
Price last confirmed 13 days ago
Retailer 3
-
£668 GBP
View
Price last confirmed 8 days ago
A
Retailer 4
-
£694 GBP
$930 USD
View
A
Retailer 5
-
£897 GBP
View
A
Retailer 6
-
£916 GBP
$1,228 USD
View
A
Retailer 7
-
£969 GBP
€1,236 EUR
View
A
Retailer 8
-
£1,031 GBP
ZAR 22,320 ZAR
View
A
Retailer 9
-
£1,249 GBP
$1,673 USD
View
B+
Retailer 10
-
£1,740 GBP
View
B+
Retailer 11
-
£1,844 GBP
$2,471 USD
View
B+
Retailer 12
-
£1,937 GBP
$2,595 USD
View
B+
Retailer 13
-
£1,997 GBP
SGD 3,615 SGD
View
B+
Retailer 14
-
£2,377 GBP
View
B
Retailer 15
-
£3,388 GBP
$4,540 USD
View
Most Expensive
B
Rare Carat
VR9086079JJ836 · Oct 28
£3,388 GBP
$4,540 USD
View
15 more retailers have this diamond
Prices start from £552 GBPSave up to £2,836 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
1.91ct Cushion
£552 GBP