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Marquise|Lab Grown|IGI

1.00ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG825654922

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG825654922

Diamond specifications and retailer prices

From £130 GBP
$174 USD
As of October 30, 2026
Save £626 GBP (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £755 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 1ct lab-grown marquise diamond

This 1ct lab-grown marquise sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG825654922 or 825654922. Listed at 19 retailers as of October 25, 2026, with prices from £130 to £755, a £626 spread on the same certified stone. MOH London lists it at £755. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825654922
Dimensions10.30 × 5.10 × 3.27 mm
L/W Ratio2.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.30 mm5.10 mm1.00 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825654922
Side View
Table 61.0%Crown 34.8°Girdle: STK-THKPavilion 40.7°Culet: NoneDepth 64.1%

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: £755 GBP|Low: £130 GBP|High: £763 GBP|Avg: £344 GBP|-1.0%
MOH London
Retailer 2
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Retailer 19
October 31, 2026
Retailer 8£130 GBP
Retailer 3£145 GBP
Retailer 18£151 GBP
Retailer 7£161 GBP
Retailer 9£161 GBP
Retailer 13£198 GBP
Retailer 19£238 GBP
Retailer 16£277 GBP
Retailer 15£288 GBP
Retailer 2£289 GBP
Retailer 6£380 GBP
Retailer 17£393 GBP
Retailer 14£396 GBP
Retailer 12£408 GBP
Retailer 5£441 GBP
Retailer 10£518 GBP
Retailer 11£539 GBP
Retailer 4£559 GBP
MOH London£755 GBP

26 data points across 19 retailers

19 retailers£130 GBP to £755 GBP

A
Cheapest Retailer
-
£130 GBP
$174 USD
A
Retailer 2
-
£145 GBP
$195 USD
View
Final sale: no returns
A
Retailer 3
-
£151 GBP
$202 USD
View
A
Retailer 4
-
£161 GBP
$216 USD
View
A
Retailer 5
-
£161 GBP
$216 USD
View
A
Retailer 6
-
£198 GBP
View
A
Retailer 7
-
£238 GBP
$320 USD
View
A
Retailer 8
-
£277 GBP
ZAR 6,001 ZAR
View
A
Retailer 9
-
£288 GBP
$386 USD
View
A
Retailer 10
-
£289 GBP
View
B+
Retailer 11
-
£380 GBP
$510 USD
View
B+
Retailer 12
-
£393 GBP
A$812 AUD
View
B+
Retailer 13
-
£396 GBP
$531 USD
View
B+
Retailer 14
-
£408 GBP
$547 USD
View
B+
Retailer 15
-
£441 GBP
SGD 799 SGD
View
B
Retailer 16
-
£518 GBP
$695 USD
View
B
Retailer 17
-
£539 GBP
$723 USD
View
B
Retailer 18
-
£559 GBP
$750 USD
View
Most Expensive
B
MOH London
LG825654922 · Oct 25
£755 GBP
View
18 more retailers have this diamond
Prices start from £130 GBPSave up to £626 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
1.00ct Marquise
£130 GBP