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Marquise|Lab Grown|IGI

2.99ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG815607775

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG815607775

Diamond specifications and retailer prices

From £415 GBP
As of November 5, 2026
Save £1,723 GBP (81%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £2,138 GBP at Frank Darling · As of November 4, 2026
View at Frank Darling

About this 2.99ct lab-grown marquise diamond

This 2.99ct lab-grown marquise sits in the two to three carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG815607775 or 815607775. Listed at 6 retailers as of November 4, 2026, with prices from £415 to £2,138, a £1,723 spread on the same certified stone. Frank Darling lists it at £2,138. 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

2.99
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815607775
Dimensions14.89 × 7.38 × 4.73 mm
L/W Ratio2.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.89 mm7.38 mm2.99 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815607775
Side View
Table 59.0%Crown 35.4°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 64.1%

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 5
Current: £2,138 GBP|Low: £415 GBP|High: £2,138 GBP|Avg: £1,332 GBP|+0.0%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 3£415 GBP
Retailer 4£582 GBP
Retailer 6£828 GBP
Retailer 2£1,508 GBP
Retailer 5£1,898 GBP
Frank Darling£2,138 GBP

12 data points across 6 retailers

6 retailers£415 GBP to £2,138 GBP

A
Cheapest Retailer
-
£415 GBP
Final sale: no returns
B+
Retailer 2
-
£582 GBP
View
Retailer 3
-
£828 GBP
View
Price last confirmed 22 days ago
B+
Retailer 4
-
£1,508 GBP
View
Retailer 5
-
£1,898 GBP
View
Price last confirmed 18 days ago
Most Expensive
B
Frank Darling
100187618450KD · Nov 4
£2,138 GBP
$2,877 USD
View
5 more retailers have this diamond
Prices start from £415 GBPSave up to £1,723 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
2.99ct Marquise
£415 GBP