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Marquise|Lab Grown|IGI

3.16ct E VVS1 Marquise Lab Grown Diamond

EX • E/VVS1 • IGI LG843655426

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843655426

Diamond specifications and retailer prices

From £907 GBP
$1,215 USD
As of October 30, 2026
Save £2,832 GBP (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,739 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.16ct lab-grown marquise diamond

This 3.16ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG843655426 or 843655426. Listed at 11 retailers as of October 30, 2026, with prices from £907 to £3,739, a £2,832 spread on the same certified stone. Brilliant Earth lists it at £3,739. 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

3.16
Carat
E
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843655426
Dimensions14.76 × 7.55 × 4.83 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
14.76 mm7.55 mm3.16 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843655426
Side View
Table 60.0%Crown 38.1°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 64.0%

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 30
Current: £3,739 GBP|Low: £907 GBP|High: £4,859 GBP|Avg: £1,893 GBP|-23.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 8£907 GBP
Retailer 7£916 GBP
Retailer 3£962 GBP
Retailer 4£1,016 GBP
Retailer 6£1,461 GBP
Retailer 10£2,183 GBP
Retailer 5£2,260 GBP
Retailer 11£2,509 GBP
Retailer 9£2,565 GBP
Retailer 2£2,716 GBP
Brilliant Earth£3,739 GBP

21 data points across 11 retailers

11 retailers£907 GBP to £3,739 GBP

A
Cheapest Retailer
-
£907 GBP
$1,215 USD
A
Retailer 2
-
£916 GBP
$1,228 USD
View
A
Retailer 3
-
£962 GBP
€1,227 EUR
View
A
Retailer 4
-
£1,016 GBP
View
B+
Retailer 5
-
£1,461 GBP
$1,958 USD
View
B+
Retailer 6
-
£2,183 GBP
$2,925 USD
View
B+
Retailer 7
-
£2,260 GBP
$3,028 USD
View
B+
Retailer 8
-
£2,509 GBP
View
B+
Retailer 9
-
£2,565 GBP
SGD 4,645 SGD
View
B
Retailer 10
-
£2,716 GBP
A$5,599 AUD
View
Most Expensive
B
Brilliant Earth
22168633A · Oct 30
£3,739 GBP
$5,010 USD
View
10 more retailers have this diamond
Prices start from £907 GBPSave up to £2,832 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
3.16ct Marquise
£907 GBP