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Marquise|Lab Grown|IGI

3.49ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG809623107

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG809623107

Diamond specifications and retailer prices

From £358 GBP
$481 USD
As of November 1, 2026
Save £2,070 GBP (85%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £2,429 GBP at Frank Darling · As of November 1, 2026
View at Frank Darling

About this 3.49ct lab-grown marquise diamond

This 3.49ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG809623107 or 809623107. Listed at 5 retailers as of November 1, 2026, with prices from £358 to £2,429, a £2,070 spread on the same certified stone. Frank Darling lists it at £2,429. 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

3.49
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG809623107
Dimensions16.14 × 8.00 × 4.84 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
16.14 mm8.00 mm3.49 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG809623107
Side View
Table 62.0%Crown 34.5°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.5%

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 1
Current: £2,429 GBP|Low: £358 GBP|High: £2,429 GBP|Avg: £1,025 GBP|-0.0%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 5£358 GBP
Retailer 6£506 GBP
Retailer 9£592 GBP
Retailer 8£657 GBP
Retailer 10£739 GBP
Retailer 4£899 GBP
Retailer 3£954 GBP
Retailer 11£979 GBP
Retailer 12£1,164 GBP
Retailer 2£1,300 GBP
Retailer 7£1,967 GBP
Frank Darling£2,429 GBP

24 data points across 12 retailers

5 retailers£358 GBP to £2,429 GBP

A
Cheapest Retailer
-
£358 GBP
$481 USD
Final sale: no returns
B+
Retailer 2
-
£506 GBP
$679 USD
View
B+
Retailer 3
-
£1,300 GBP
$1,745 USD
View
B
Retailer 4
-
£1,967 GBP
$2,640 USD
View
Most Expensive
B
Frank Darling
100748099160KD · Nov 1
£2,429 GBP
$3,259 USD
View
4 more retailers have this diamond
Prices start from £358 GBPSave up to £2,070 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
3.49ct Marquise
£358 GBP