CaratHunter
Plans
Marquise|Lab Grown|IGI

1.91ct G VVS2 Marquise Lab Grown Diamond

EX • G/VVS2 • IGI LG840667421

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG840667421

Diamond specifications and retailer prices

From £206 GBP
$276 USD
As of November 1, 2026
Save £1,003 GBP (83%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,209 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.91ct lab-grown marquise diamond

This 1.91ct lab-grown marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG840667421 or 840667421. Listed at 4 retailers as of October 30, 2026, with prices from £206 to £1,209, a £1,003 spread on the same certified stone. Brilliant Earth lists it at £1,209. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.91
Carat
G
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840667421
Dimensions12.38 × 6.40 × 4.20 mm
L/W Ratio1.93
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.38 mm6.40 mm1.91 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840667421
Side View
Table 57.0%Crown 36.2°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 65.6%

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: £1,209 GBP|Low: £206 GBP|High: £1,269 GBP|Avg: £779 GBP|-4.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 3£206 GBP
Retailer 2£452 GBP
Retailer 4£1,026 GBP
Brilliant Earth£1,209 GBP

29 data points across 4 retailers

4 retailers£206 GBP to £1,209 GBP

A
Cheapest Retailer
-
£206 GBP
$276 USD
Final sale: no returns
A
Retailer 2
-
£452 GBP
View
B+
Retailer 3
-
£1,026 GBP
$1,375 USD
View
Most Expensive
B
Brilliant Earth
21703709A · Oct 30
£1,209 GBP
$1,620 USD
View
3 more retailers have this diamond
Prices start from £206 GBPSave up to £1,003 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
1.91ct Marquise
£206 GBP