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Marquise|Lab Grown|IGI

1.01ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG816615883

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG816615883

Diamond specifications and retailer prices

From £152 GBP
$202 USD
As of October 27, 2026
Save £1,328 GBP (90%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,479 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.01ct lab-grown marquise diamond

This 1.01ct 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 LG816615883 or 816615883. Listed at 18 retailers as of October 27, 2026, with prices from £152 to £1,479, a £1,328 spread on the same certified stone. Rare Carat lists it at £1,479. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.01
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615883
Dimensions10.44 × 5.19 × 3.26 mm
L/W Ratio2.01
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
10.44 mm5.19 mm1.01 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615883
Side View
Table 59.0%Crown 34.4°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.8%

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 27
Current: £1,479 GBP|Low: £174 GBP|High: £1,506 GBP|Avg: £621 GBP|-1.7%
Rare Carat
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 12£174 GBP
Retailer 8£323 GBP
Retailer 4£325 GBP
Retailer 2£344 GBP
Retailer 9£362 GBP
Retailer 6£398 GBP
Retailer 3£421 GBP
Retailer 5£586 GBP
Retailer 11£606 GBP
Retailer 14£644 GBP
Retailer 13£755 GBP
Retailer 7£883 GBP
Retailer 10£1,344 GBP
Rare Carat£1,479 GBP

39 data points across 14 retailers

18 retailers£152 GBP to £1,479 GBP

A
Cheapest Retailer
-
£152 GBP
$202 USD
A
Retailer 2
-
£174 GBP
$232 USD
View
Final sale: no returns
A
Retailer 3
-
£176 GBP
$234 USD
View
A
Retailer 4
-
£188 GBP
$250 USD
View
A
Retailer 5
-
£188 GBP
$250 USD
View
A
Retailer 6
-
£323 GBP
ZAR 6,944 ZAR
View
A
Retailer 7
-
£325 GBP
$433 USD
View
A
Retailer 8
-
£344 GBP
View
A
Retailer 9
-
£362 GBP
€459 EUR
View
A
Retailer 10
-
£421 GBP
$561 USD
View
B+
Retailer 11
-
£586 GBP
SGD 1,054 SGD
View
B+
Retailer 12
-
£604 GBP
$805 USD
View
B+
Retailer 13
-
£606 GBP
$807 USD
View
B+
Retailer 14
-
£644 GBP
$858 USD
View
B+
Retailer 15
-
£755 GBP
$1,006 USD
View
B+
Retailer 16
-
£883 GBP
View
B
Retailer 17
-
£1,344 GBP
$1,790 USD
View
Most Expensive
B
Rare Carat
PD-230667 · Oct 28
£1,479 GBP
$1,970 USD
View
17 more retailers have this diamond
Prices start from £152 GBPSave up to £1,328 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
1.01ct Marquise
£152 GBP