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Marquise|Lab Grown|IGI

6.11ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG712578558

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG712578558

Diamond specifications and retailer prices

From £1,716 GBP
CA$3,199 CAD
As of November 2, 2026
Save £761 GBP (31%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £2,477 GBP at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 6.11ct lab-grown marquise diamond

This 6.11ct lab-grown marquise sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG712578558 or 712578558. Listed at 2 retailers as of November 1, 2026, with prices from £1,716 to £2,477, a £761 spread on the same certified stone. The Diamond Guys lists it at £2,477. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

6.11
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG712578558
Dimensions18.52 × 9.42 mm
L/W Ratio1.97
Girdle conditionFaceted
Culet sizePointed
Top View
18.52 mm9.42 mm6.11 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG712578558
Side View
Table 62.0%Crown 36.8°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 64.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £1,844 GBP|Low: £372 GBP|High: £9,367 GBP|Avg: £2,209 GBP|+0.2%
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The Diamond Guys
August 3, 2026
Retailer 7£372 GBP
Retailer 9£814 GBP
Retailer 6£869 GBP
Retailer 10£913 GBP
Retailer 15£983 GBP
Retailer 3£987 GBP
Retailer 17£1,145 GBP
Retailer 14£1,242 GBP
Retailer 12£1,716 GBP
Retailer 11£1,747 GBP
Retailer 1£1,844 GBP
Retailer 13£1,941 GBP
Retailer 5£2,023 GBP
The Diamond Guys£2,477 GBP
Retailer 4£3,224 GBP
Retailer 16£3,726 GBP
Retailer 2£4,280 GBP
Retailer 8£9,367 GBP

54 data points across 18 retailers

2 retailers£1,716 GBP to £2,477 GBP

B+
Cheapest Retailer
-
£1,716 GBP
CA$3,199 CAD
Most Expensive
B
The Diamond Guys
1954435163 · Nov 1
£2,477 GBP
$3,324 USD
View
1 more retailer has this diamond
Prices start from £1,716 GBPSave up to £761 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+
6.11ct Marquise
£1,716 GBP