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Marquise|Lab Grown|IGI

1.00ct I VS1 Marquise Lab Grown Diamond

ID • I/VS1 • IGI LG436072902

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436072902

Diamond specifications and retailer prices

From £432 GBP
$580 USD
As of November 2, 2026
Save £2,920 GBP (87%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,352 GBP at MOH London · As of October 27, 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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG436072902 or 436072902. Listed at 14 retailers as of October 27, 2026, with prices from £432 to £3,352, a £2,920 spread on the same certified stone. MOH London lists it at £3,352. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436072902
Dimensions9.68 × 5.35 × 3.37 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.68 mm5.35 mm1.00 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436072902
Side View
Table 55.0%Crown 32.7°Girdle: THN-STKPavilion 41.2°Culet: NoneDepth 63.0%

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: Nov 2
Current: £3,352 GBP|Low: £432 GBP|High: £3,388 GBP|Avg: £1,590 GBP|+0.1%
MOH London
Retailer 2
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Retailer 7
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 17
November 2, 2026
Retailer 10£432 GBP
Retailer 8£670 GBP
Retailer 12£898 GBP
Retailer 16£977 GBP
Retailer 3£1,006 GBP
Retailer 13£1,042 GBP
Retailer 17£1,042 GBP
Retailer 6£1,170 GBP
Retailer 7£1,458 GBP
Retailer 14£1,652 GBP
Retailer 2£1,673 GBP
Retailer 11£1,915 GBP
Retailer 15£1,953 GBP
Retailer 5£1,996 GBP
Retailer 4£2,521 GBP
Retailer 9£2,983 GBP
MOH London£3,352 GBP

30 data points across 17 retailers

14 retailers£432 GBP to £3,352 GBP

A
Cheapest Retailer
-
£432 GBP
$580 USD
B
Retailer 2
-
£898 GBP
$1,205 USD
View
B
Retailer 3
-
£977 GBP
$1,311 USD
View
B
Retailer 4
-
£1,006 GBP
$1,350 USD
View
Final sale: no returns
B
Retailer 5
-
£1,042 GBP
$1,398 USD
View
Retailer 6
-
£1,042 GBP
$1,398 USD
View
Price last confirmed 21 days ago
B
Retailer 7
-
£1,170 GBP
$1,570 USD
View
B
Retailer 8
-
£1,652 GBP
$2,217 USD
View
B
Retailer 9
-
£1,673 GBP
View
B
Retailer 10
-
£1,915 GBP
ZAR 41,520 ZAR
View
B
Retailer 11
-
£1,953 GBP
$2,621 USD
View
B
Retailer 12
-
£1,996 GBP
$2,678 USD
View
B
Retailer 13
-
£2,521 GBP
View
Most Expensive
B
MOH London
LG436072902 · Oct 27
£3,352 GBP
View
13 more retailers have this diamond
Prices start from £432 GBPSave up to £2,920 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
£432 GBP