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Marquise|Lab Grown|IGI

1.18ct D VS2 Marquise Lab Grown Diamond

EX • D/VS2 • IGI LG811649484

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG811649484

Diamond specifications and retailer prices

From £400 GBP
As of November 6, 2026
3 retailers carry this diamond
Most expensive: £486 GBP at Rare Carat · As of July 12, 2026
View at Rare Carat

About this 1.18ct lab-grown marquise diamond

This 1.18ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG811649484 or 811649484. Listed at 3 retailers as of November 6, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.18
Carat
D
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811649484
Dimensions10.91 × 5.57 × 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
10.91 mm5.57 mm1.18 ctD / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811649484
Side View
Table 58.0%Crown 35.1°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 61.8%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £486 GBP|Low: £100 GBP|High: £1,003 GBP|Avg: £461 GBP
Rare Carat
Retailer 2
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Retailer 14
September 9, 2026
Retailer 14£100 GBP
Retailer 9£222 GBP
Retailer 10£253 GBP
Retailer 5£272 GBP
Retailer 6£374 GBP
Retailer 2£400 GBP
Retailer 12£413 GBP
Retailer 3£442 GBP
Rare Carat£486 GBP
Retailer 4£544 GBP
Retailer 8£676 GBP
Retailer 11£758 GBP
Retailer 13£816 GBP
Retailer 7£1,003 GBP

32 data points across 14 retailers

3 retailers

Retailer 1
-
£374 GBP
Price last confirmed 127 days ago
B+
Retailer 2
-
£400 GBP
View
Most Expensive
Rare Carat
LPJ01F-15 · Jul 12
£486 GBP
$655 USD
View
Price last confirmed 116 days ago
2 more retailers have this diamond
Prices start from £400 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+
1.18ct Marquise
£400 GBP