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Marquise|Lab Grown|IGI

3.05ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG843684524

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843684524

Diamond specifications and retailer prices

From £398 GBP
As of November 4, 2026
Save £2,120 GBP (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,519 GBP at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 3.05ct lab-grown marquise diamond

This 3.05ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843684524 or 843684524. Listed at 17 retailers as of November 3, 2026, with prices from £398 to £2,519, a £2,120 spread on the same certified stone. Brilliant Earth lists it at £2,519. 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

3.05
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843684524
Dimensions14.86 × 7.61 × 4.72 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.86 mm7.61 mm3.05 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843684524
Side View
Table 62.0%Crown 33.7°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £2,519 GBP|Low: £398 GBP|High: £2,548 GBP|Avg: £1,029 GBP|-1.2%
Brilliant Earth
Retailer 2
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Retailer 12
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Retailer 18
November 5, 2026
Retailer 9£398 GBP
Retailer 3£484 GBP
Retailer 6£506 GBP
Retailer 7£546 GBP
Retailer 16£593 GBP
Retailer 18£672 GBP
Retailer 11£726 GBP
Retailer 4£902 GBP
Retailer 12£935 GBP
Retailer 15£958 GBP
Retailer 14£1,034 GBP
Retailer 10£1,400 GBP
Retailer 8£1,440 GBP
Retailer 13£1,537 GBP
Retailer 5£1,548 GBP
Retailer 17£1,594 GBP
Retailer 2£1,617 GBP
Brilliant Earth£2,519 GBP

24 data points across 18 retailers

17 retailers£398 GBP to £2,519 GBP

A
Cheapest Retailer
-
£398 GBP
Final sale: no returns
A
Retailer 2
-
£484 GBP
View
A
Retailer 3
-
£546 GBP
View
B+
Retailer 4
-
£593 GBP
View
Retailer 5
-
£672 GBP
View
Price last confirmed 9 days ago
A
Retailer 6
-
£726 GBP
View
A
Retailer 7
-
£902 GBP
View
A
Retailer 8
-
£935 GBP
View
A
Retailer 9
-
£958 GBP
View
A
Retailer 10
-
£1,034 GBP
View
B
Retailer 11
-
£1,400 GBP
View
B+
Retailer 12
-
£1,440 GBP
View
B+
Retailer 13
-
£1,537 GBP
View
B+
Retailer 14
-
£1,548 GBP
View
B+
Retailer 15
-
£1,594 GBP
View
B+
Retailer 16
-
£1,617 GBP
View
Most Expensive
B
Brilliant Earth
21775789A · Nov 3
£2,519 GBP
$3,390 USD
View
16 more retailers have this diamond
Prices start from £398 GBPSave up to £2,120 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
3.05ct Marquise
£398 GBP