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Marquise|Lab Grown|IGI

0.90ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG790611924

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790611924

Diamond specifications and retailer prices

From £191 GBP
$254 USD
As of October 27, 2026
Save £835 GBP (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,141 GBP at Brilliant Earth · As of October 22, 2026
View at Brilliant Earth

About this 0.9ct lab-grown marquise diamond

This 0.9ct lab-grown marquise sits in the just-under-one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790611924 or 790611924. Listed at 22 retailers as of October 27, 2026, with a 438% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.90
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790611924
Dimensions10.21 × 5.03 × 3.13 mm
L/W Ratio2.03
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
10.21 mm5.03 mm0.90 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790611924
Side View
Table 59.0%Crown 35.1°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 62.2%

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 27
Current: £1,141 GBP|Low: £213 GBP|High: £1,141 GBP|Avg: £551 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
October 29, 2026
Retailer 5£213 GBP
Retailer 13£237 GBP
Retailer 10£390 GBP
Retailer 3£395 GBP
Retailer 4£416 GBP
Retailer 9£428 GBP
Retailer 2£450 GBP
Retailer 8£589 GBP
Retailer 12£727 GBP
Retailer 14£761 GBP
Retailer 11£815 GBP
Retailer 6£927 GBP
Retailer 7£953 GBP
Brilliant Earth£1,141 GBP

42 data points across 14 retailers

22 retailers£191 GBP to £1,026 GBP

A
Cheapest Retailer
-
£191 GBP
$254 USD
A
Retailer 2
-
£213 GBP
$284 USD
View
Final sale: no returns
A
Retailer 3
-
£222 GBP
$295 USD
View
A
Retailer 4
-
£237 GBP
$315 USD
View
A
Retailer 5
-
£237 GBP
$315 USD
View
A
Retailer 6
-
£260 GBP
HK$2,700 HKD
View
A
Retailer 7
-
£390 GBP
€495 EUR
View
A
Retailer 8
-
£395 GBP
$526 USD
View
A
Retailer 9
-
£416 GBP
$554 USD
View
A
Retailer 10
-
£428 GBP
ZAR 9,205 ZAR
View
A
Retailer 11
-
£433 GBP
$576 USD
View
A
Retailer 12
-
£450 GBP
View
B+
Retailer 13
-
£589 GBP
A$1,206 AUD
View
B+
Retailer 14
-
£637 GBP
SGD 1,146 SGD
View
B+
Retailer 15
-
£727 GBP
$968 USD
View
B+
Retailer 16
-
£761 GBP
$1,013 USD
View
B+
Retailer 17
-
£799 GBP
$1,064 USD
View
B+
Retailer 18
-
£815 GBP
$1,085 USD
View
B
Retailer 19
-
£927 GBP
View
B
Retailer 20
-
£953 GBP
View
B
Retailer 21
-
£1,026 GBP
$1,366 USD
View
Most Expensive
B
Brilliant Earth
19067189A · Oct 22
£1,141 GBP
$1,520 USD
View
Price last confirmed 7 days ago
21 more retailers have this diamond
Prices start from £191 GBPSave up to £835 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
0.90ct Marquise
£191 GBP