CaratHunter
Plans
Marquise|Lab Grown|IGI

1.11ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG490174403

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG490174403

Diamond specifications and retailer prices

From £1,858 GBP
$2,490 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: £1,858 GBP at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 1.11ct lab-grown marquise diamond

This 1.11ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG490174403 or 490174403. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.11
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490174403
Dimensions10.78 × 5.53 × 3.30 mm
L/W Ratio1.95
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
10.78 mm5.53 mm1.11 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG490174403
Side View
Table 62.0%Crown 33.1°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 59.7%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £1,858 GBP|Low: £274 GBP|High: £1,858 GBP|Avg: £870 GBP|+36.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
April 14, 2026
Retailer 11£274 GBP
Retailer 10£353 GBP
Retailer 7£358 GBP
Retailer 8£465 GBP
Retailer 5£835 GBP
Retailer 3£933 GBP
Retailer 9£958 GBP
Retailer 4£990 GBP
Retailer 2£1,033 GBP
Retailer 6£1,056 GBP
Brilliant Earth£1,858 GBP

34 data points across 11 retailers

1 retailer

B
Brilliant Earth
6784767B · Oct 31
£1,858 GBP
$2,490 USD
View

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.

B
1.11ct Marquise
£1,858 GBP