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Marquise|Lab Grown|IGI

3.38ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG811678564

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG811678564

Diamond specifications and retailer prices

From £352 GBP
$471 USD
As of October 28, 2026
Save £2,004 GBP (85%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £2,366 GBP at Brilliant Earth · As of October 8, 2026
View at Brilliant Earth

About this 3.38ct lab-grown marquise diamond

This 3.38ct 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 LG811678564 or 811678564. Listed at 6 retailers as of October 27, 2026, with a 570% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.38
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811678564
Dimensions15.22 × 7.71 × 4.96 mm
L/W Ratio1.97
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.22 mm7.71 mm3.38 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811678564
Side View
Table 61.0%Crown 37.8°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 64.3%

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: Oct 28
Current: £2,366 GBP|Low: £352 GBP|High: £2,433 GBP|Avg: £1,531 GBP|-2.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 27, 2026
Retailer 4£352 GBP
Retailer 3£487 GBP
Retailer 7£631 GBP
Retailer 6£1,287 GBP
Retailer 5£2,000 GBP
Retailer 2£2,356 GBP
Brilliant Earth£2,366 GBP

22 data points across 7 retailers

6 retailers£352 GBP to £2,356 GBP

A
Cheapest Retailer
-
£352 GBP
$471 USD
Final sale: no returns
B+
Retailer 2
-
£487 GBP
$652 USD
View
B+
Retailer 3
-
£1,287 GBP
$1,725 USD
View
Retailer 4
-
£2,000 GBP
$2,680 USD
View
Price last confirmed 8 days ago
B
Retailer 5
-
£2,356 GBP
$3,156 USD
View
Most Expensive
Brilliant Earth
21248071A · Oct 8
£2,366 GBP
$3,170 USD
View
Price last confirmed 24 days ago
5 more retailers have this diamond
Prices start from £352 GBPSave up to £2,004 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
3.38ct Marquise
£352 GBP