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Marquise|Lab Grown|IGI

1.05ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG800682019

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800682019

Diamond specifications and retailer prices

From £306 GBP
HK$3,200 HKD
As of October 31, 2026
Save £1,217 GBP (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,523 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.05ct lab-grown marquise diamond

This 1.05ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800682019 or 800682019. Listed at 12 retailers as of October 28, 2026, with prices from £306 to £1,523, a £1,217 spread on the same certified stone. Rare Carat lists it at £1,523. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800682019
Dimensions10.34 × 5.31 × 3.37 mm
L/W Ratio1.95
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
10.34 mm5.31 mm1.05 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800682019
Side View
Table 59.0%Crown 34.9°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.5%

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 31
Current: £1,523 GBP|Low: £306 GBP|High: £1,660 GBP|Avg: £783 GBP|-1.4%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 3£306 GBP
Retailer 12£312 GBP
Retailer 10£353 GBP
Retailer 2£368 GBP
Retailer 8£376 GBP
Retailer 5£414 GBP
Retailer 9£483 GBP
Retailer 11£838 GBP
Retailer 7£890 GBP
Retailer 4£1,114 GBP
Retailer 6£1,149 GBP
Rare Carat£1,523 GBP

41 data points across 12 retailers

12 retailers£306 GBP to £1,523 GBP

A
Cheapest Retailer
-
£306 GBP
HK$3,200 HKD
A
Retailer 2
-
£312 GBP
$418 USD
View
A
Retailer 3
-
£353 GBP
$473 USD
View
A
Retailer 4
-
£368 GBP
€470 EUR
View
A
Retailer 5
-
£376 GBP
$504 USD
View
A
Retailer 6
-
£414 GBP
View
Retailer 7
-
£483 GBP
$647 USD
View
Price last confirmed 7 days ago
B+
Retailer 8
-
£838 GBP
$1,122 USD
View
B+
Retailer 9
-
£890 GBP
View
B+
Retailer 10
-
£1,114 GBP
$1,492 USD
View
B
Retailer 11
-
£1,149 GBP
$1,540 USD
View
Most Expensive
B
Rare Carat
3895-U · Oct 28
£1,523 GBP
$2,040 USD
View
11 more retailers have this diamond
Prices start from £306 GBPSave up to £1,217 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
1.05ct Marquise
£306 GBP