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Marquise|Lab Grown|IGI

1.20ct H VS2 Marquise Lab Grown Diamond

ID • H/VS2 • IGI LG546218841

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG546218841

Diamond specifications and retailer prices

From £1,076 GBP
As of November 1, 2026
Save £2,171 GBP (67%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £3,247 GBP at The Diamond Guys · As of November 2, 2026
View at The Diamond Guys

About this 1.2ct lab-grown marquise diamond

This 1.2ct lab-grown marquise sits in the classic one-carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG546218841 or 546218841. Listed at 2 retailers as of November 1, 2026, with prices from £1,076 to £3,247, a £2,171 spread on the same certified stone. The Diamond Guys lists it at £3,247. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
H
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.7°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG546218841
Dimensions10.80 × 5.52 × 3.44 mm
L/W Ratio1.96
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
10.80 mm5.52 mm1.20 ctH / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG546218841
Side View
Table 57.0%Crown 35.7°Girdle: MED-STKPavilion 38.5°Culet: NoneDepth 62.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: £1,076 GBP|Low: £308 GBP|High: £3,247 GBP|Avg: £1,358 GBP|+1.8%
Retailer 1
Retailer 2
Retailer 3
The Diamond Guys
November 2, 2026
Retailer 3£308 GBP
Retailer 2£810 GBP
Retailer 1£1,076 GBP
The Diamond Guys£3,247 GBP

3 data points across 4 retailers

2 retailers£1,076 GBP to £3,247 GBP

B
Cheapest Retailer
-
£1,076 GBP
Most Expensive
C
The Diamond Guys
1998851409 · Nov 2
£3,247 GBP
$4,370 USD
View
1 more retailer has this diamond
Prices start from £1,076 GBPSave up to £2,171 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.

B
1.20ct Marquise
£1,076 GBP