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Marquise|Lab Grown|IGI

0.51ct H VVS2 Marquise Lab Grown Diamond

ID • H/VVS2 • IGI LG436045420

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436045420

Diamond specifications and retailer prices

From £260 GBP
As of November 4, 2026
Save £1,002 GBP (79%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,262 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 0.51ct lab-grown marquise diamond

This 0.51ct lab-grown marquise sits in the half to three-quarter carat band, graded H colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG436045420 or 436045420. Listed at 15 retailers as of November 3, 2026, with prices from £260 to £1,262, a £1,002 spread on the same certified stone. MOH London lists it at £1,262. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
H
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045420
Dimensions7.75 × 4.30 × 2.72 mm
L/W Ratio1.80
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.75 mm4.30 mm0.51 ctH / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436045420
Side View
Table 59.5%Crown 35.8°Girdle: THN-THKPavilion 40.4°Culet: NoneDepth 63.3%

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: Nov 4
Current: £1,262 GBP|Low: £250 GBP|High: £1,297 GBP|Avg: £684 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
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Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 18
November 4, 2026
Retailer 15£260 GBP
Retailer 16£281 GBP
Retailer 6£291 GBP
Retailer 4£302 GBP
Retailer 5£323 GBP
Retailer 17£323 GBP
Retailer 8£433 GBP
Retailer 3£518 GBP
Retailer 12£579 GBP
Retailer 11£586 GBP
Retailer 9£607 GBP
Retailer 2£822 GBP
Retailer 13£947 GBP
Retailer 18£1,038 GBP
Retailer 7£1,160 GBP
Retailer 14£1,253 GBP
MOH London£1,262 GBP
Retailer 10£1,297 GBP

30 data points across 18 retailers

15 retailers£260 GBP to £1,262 GBP

A
Cheapest Retailer
-
£260 GBP
B+
Retailer 2
-
£281 GBP
View
B+
Retailer 3
-
£291 GBP
View
Final sale: no returns
B+
Retailer 4
-
£302 GBP
View
Retailer 5
-
£323 GBP
View
Price last confirmed 11 days ago
B+
Retailer 6
-
£323 GBP
View
B
Retailer 7
-
£518 GBP
View
Retailer 8
-
£579 GBP
View
Price last confirmed 11 days ago
B
Retailer 9
-
£586 GBP
View
B
Retailer 10
-
£822 GBP
View
B
Retailer 11
-
£947 GBP
View
B
Retailer 12
-
£1,038 GBP
View
B
Retailer 13
-
£1,160 GBP
View
B
Retailer 14
-
£1,253 GBP
View
Most Expensive
B
MOH London
LG436045420 · Nov 3
£1,262 GBP
View
14 more retailers have this diamond
Prices start from £260 GBPSave up to £1,002 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
0.51ct Marquise
£260 GBP