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Marquise|Lab Grown|IGI

0.99ct E VVS1 Marquise Lab Grown Diamond

ID • E/VVS1 • IGI LG818670617

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818670617

Diamond specifications and retailer prices

From £133 GBP
$178 USD
As of October 30, 2026
Save £640 GBP (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £772 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.99ct lab-grown marquise diamond

This 0.99ct lab-grown marquise sits in the just-under-one-carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG818670617 or 818670617. Listed at 19 retailers as of October 29, 2026, with prices from £133 to £772, a £640 spread on the same certified stone. MOH London lists it at £772. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.99
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818670617
Dimensions10.46 × 5.24 × 3.21 mm
L/W Ratio2.00
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
10.46 mm5.24 mm0.99 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818670617
Side View
Table 58.0%Crown 33.9°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 61.3%

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 30
Current: £772 GBP|Low: £127 GBP|High: £855 GBP|Avg: £374 GBP|-8.6%
MOH London
Retailer 2
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Retailer 8
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Retailer 11
Retailer 12
Retailer 13
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Retailer 18
October 30, 2026
Retailer 18£133 GBP
Retailer 8£149 GBP
Retailer 7£154 GBP
Retailer 3£164 GBP
Retailer 10£164 GBP
Retailer 14£292 GBP
Retailer 5£292 GBP
Retailer 11£295 GBP
Retailer 12£297 GBP
Retailer 6£299 GBP
Retailer 13£409 GBP
Retailer 16£412 GBP
Retailer 4£528 GBP
Retailer 15£549 GBP
Retailer 9£569 GBP
Retailer 2£605 GBP
Retailer 17£616 GBP
MOH London£772 GBP

44 data points across 18 retailers

19 retailers£133 GBP to £772 GBP

A
Cheapest Retailer
-
£133 GBP
$178 USD
A
Retailer 2
-
£149 GBP
$199 USD
View
Final sale: no returns
A
Retailer 3
-
£154 GBP
$206 USD
View
A
Retailer 4
-
£164 GBP
$220 USD
View
A
Retailer 5
-
£164 GBP
$220 USD
View
A
Retailer 6
-
£292 GBP
€372 EUR
View
A
Retailer 7
-
£292 GBP
$391 USD
View
A
Retailer 8
-
£295 GBP
View
A
Retailer 9
-
£297 GBP
ZAR 6,426 ZAR
View
A
Retailer 10
-
£299 GBP
$400 USD
View
B+
Retailer 11
-
£409 GBP
A$844 AUD
View
B+
Retailer 12
-
£412 GBP
$552 USD
View
B+
Retailer 13
-
£495 GBP
SGD 897 SGD
View
B+
Retailer 14
-
£528 GBP
$708 USD
View
B+
Retailer 15
-
£549 GBP
$735 USD
View
B+
Retailer 16
-
£569 GBP
$762 USD
View
B+
Retailer 17
-
£605 GBP
$810 USD
View
B
Retailer 18
-
£616 GBP
$826 USD
View
Most Expensive
B
MOH London
LG818670617 · Oct 29
£772 GBP
View
18 more retailers have this diamond
Prices start from £133 GBPSave up to £640 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
0.99ct Marquise
£133 GBP