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Round|Lab Grown|IGI

1.80ct E IF Round Lab Grown Diamond

EX • E/IF • IGI LG801618135

Shape and cutting style on the report: Round brilliant

Certificate IGI LG801618135

Diamond specifications and retailer prices

From £507 GBP
$679 USD
As of October 30, 2026
Save £1,426 GBP (74%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,933 GBP at Rare Carat · As of October 25, 2026
View at Rare Carat

About this 1.8ct lab-grown round diamond

This 1.8ct 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 LG801618135 or 801618135. Listed at 8 retailers as of October 25, 2026, with prices from £507 to £1,933, a £1,426 spread on the same certified stone. Rare Carat lists it at £1,933. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.80
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801618135
Dimensions7.77 × 7.72 × 4.86 mm
L/W Ratio1.01
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
7.77 mm7.72 mm1.80 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801618135
Side View
Table 58.0%Crown 35.9°Girdle: MediumPavilion 41.2°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
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: £1,933 GBP|Low: £507 GBP|High: £1,974 GBP|Avg: £963 GBP|+9.7%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 7£507 GBP
Retailer 9£514 GBP
Retailer 5£514 GBP
Retailer 2£564 GBP
Retailer 4£898 GBP
Retailer 6£1,045 GBP
Retailer 3£1,269 GBP
Retailer 8£1,338 GBP
Rare Carat£1,933 GBP

43 data points across 9 retailers

8 retailers£507 GBP to £1,933 GBP

A
Cheapest Retailer
-
£507 GBP
$679 USD
A
Retailer 2
-
£514 GBP
$689 USD
View
A
Retailer 3
-
£564 GBP
View
B+
Retailer 4
-
£898 GBP
$1,203 USD
View
B+
Retailer 5
-
£1,045 GBP
$1,400 USD
View
B+
Retailer 6
-
£1,269 GBP
View
B+
Retailer 7
-
£1,338 GBP
$1,793 USD
View
Most Expensive
B
Rare Carat
3S801618135 · Oct 25
£1,933 GBP
$2,590 USD
View
7 more retailers have this diamond
Prices start from £507 GBPSave up to £1,426 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
1.80ct Round
£507 GBP