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Marquise|Lab Grown|IGI

3.42ct G VS1 Marquise Lab Grown Diamond

VG • G/VS1 • IGI LG849602319

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG849602319

Diamond specifications and retailer prices

From £439 GBP
HK$4,600 HKD
As of November 1, 2026
Save £1,306 GBP (75%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,744 GBP at With Clarity · As of November 2, 2026
View at With Clarity

About this 3.42ct lab-grown marquise diamond

This 3.42ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG849602319 or 849602319. Listed at 8 retailers as of November 1, 2026, with prices from £439 to £1,744, a £1,306 spread on the same certified stone. With Clarity lists it at £1,744. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.42
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG849602319
Dimensions14.97 × 7.81 × 5.01 mm
L/W Ratio1.92
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.97 mm7.81 mm3.42 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG849602319
Side View
Table 65.0%Crown 39.3°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 64.1%

Caratlytics Score

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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 1
Current: £439 GBP|Low: £367 GBP|High: £1,744 GBP|Avg: £811 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
With Clarity
October 31, 2026
Retailer 5£367 GBP
Retailer 1£439 GBP
Retailer 6£455 GBP
Retailer 3£514 GBP
Retailer 7£669 GBP
Retailer 4£960 GBP
Retailer 2£1,278 GBP
Retailer 8£1,335 GBP
With Clarity£1,744 GBP

4 data points across 9 retailers

8 retailers£439 GBP to £1,744 GBP

A
Cheapest Retailer
-
£439 GBP
HK$4,600 HKD
A
Retailer 2
-
£455 GBP
View
Retailer 3
-
£514 GBP
$690 USD
View
Price last confirmed 5 days ago
A
Retailer 4
-
£669 GBP
View
B+
Retailer 5
-
£960 GBP
$1,288 USD
View
B+
Retailer 6
-
£1,278 GBP
SGD 2,318 SGD
View
B+
Retailer 7
-
£1,335 GBP
$1,791 USD
View
Most Expensive
B
With Clarity
849602319 · Nov 2
£1,744 GBP
$2,341 USD
View
7 more retailers have this diamond
Prices start from £439 GBPSave up to £1,306 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
3.42ct Marquise
£439 GBP