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Round|Lab Grown|IGI

1.81ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG803675180

Shape and cutting style on the report: Round brilliant

Certificate IGI LG803675180

Diamond specifications and retailer prices

From £272 GBP
$365 USD
As of October 30, 2026
Save £2,183 GBP (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £2,455 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.81ct lab-grown round diamond

This 1.81ct lab-grown round 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 LG803675180 or 803675180. Listed at 22 retailers as of October 29, 2026, with prices from £272 to £2,455, a £2,183 spread on the same certified stone. Brilliant Earth lists it at £2,455. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803675180
Dimensions7.84 × 7.77 × 4.81 mm
L/W Ratio1.01
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
7.84 mm7.77 mm1.81 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803675180
Side View
Table 57.0%Crown 35.2°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.6%

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: £2,455 GBP|Low: £272 GBP|High: £2,455 GBP|Avg: £862 GBP
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 30, 2026
Retailer 7£272 GBP
Retailer 4£425 GBP
Retailer 13£425 GBP
Retailer 10£490 GBP
Retailer 12£519 GBP
Retailer 2£539 GBP
Retailer 5£559 GBP
Retailer 9£683 GBP
Retailer 11£704 GBP
Retailer 16£886 GBP
Retailer 17£904 GBP
Retailer 8£1,004 GBP
Retailer 3£1,058 GBP
Retailer 6£1,192 GBP
Retailer 14£1,212 GBP
Retailer 15£1,922 GBP
Brilliant Earth£2,455 GBP

38 data points across 17 retailers

22 retailers£272 GBP to £2,455 GBP

Retailer 1
-
£243 GBP
$326 USD
Price last confirmed 20 days ago
A
Retailer 2
-
£272 GBP
$365 USD
View
Final sale: no returns
Retailer 3
-
£302 GBP
$405 USD
View
Price last confirmed 18 days ago
Retailer 4
-
£302 GBP
$405 USD
View
Price last confirmed 28 days ago
A
Retailer 5
-
£425 GBP
$570 USD
View
A
Retailer 6
-
£425 GBP
$570 USD
View
A
Retailer 7
-
£490 GBP
€625 EUR
View
A
Retailer 8
-
£519 GBP
ZAR 11,234 ZAR
View
A
Retailer 9
-
£539 GBP
View
A
Retailer 10
-
£559 GBP
$749 USD
View
A
Retailer 11
-
£683 GBP
$915 USD
View
A
Retailer 12
-
£704 GBP
A$1,451 AUD
View
B+
Retailer 13
-
£886 GBP
$1,187 USD
View
B+
Retailer 14
-
£904 GBP
$1,211 USD
View
Retailer 15
-
£971 GBP
$1,301 USD
View
Price last confirmed 23 days ago
B+
Retailer 16
-
£1,004 GBP
$1,345 USD
View
B+
Retailer 17
-
£1,058 GBP
$1,418 USD
View
B+
Retailer 18
-
£1,141 GBP
$1,529 USD
View
B+
Retailer 19
-
£1,192 GBP
$1,597 USD
View
B+
Retailer 20
-
£1,212 GBP
View
B
Retailer 21
-
£1,922 GBP
$2,575 USD
View
Most Expensive
B
Brilliant Earth
20269441A · Oct 29
£2,455 GBP
$3,290 USD
View
21 more retailers have this diamond
Prices start from £272 GBPSave up to £2,183 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
1.81ct Round
£272 GBP