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Marquise|Lab Grown|IGI

1.91ct G VS1 Marquise Lab Grown Diamond

VG • G/VS1 • IGI LG847671564

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG847671564

Diamond specifications and retailer prices

From £372 GBP
$499 USD
As of November 1, 2026
Save £560 GBP (60%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £931 GBP at Rare Carat · As of November 1, 2026
View at Rare Carat

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 VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG847671564 or 847671564. Listed at 6 retailers as of November 1, 2026, with prices from £372 to £931, a £560 spread on the same certified stone. Rare Carat lists it at £931. 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

1.91
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847671564
Dimensions12.37 × 6.51 × 4.07 mm
L/W Ratio1.90
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.37 mm6.51 mm1.91 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847671564
Side View
Table 56.0%Crown 34.4°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
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: £417 GBP|Low: £372 GBP|High: £888 GBP|Avg: £591 GBP|+2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 3, 2026
Retailer 5£372 GBP
Retailer 1£417 GBP
Retailer 3£537 GBP
Retailer 4£747 GBP
Retailer 2£883 GBP

16 data points across 5 retailers

6 retailers£372 GBP to £931 GBP

B+
Cheapest Retailer
-
£372 GBP
$499 USD
A
Retailer 2
-
£417 GBP
View
B+
Retailer 3
-
£537 GBP
$721 USD
View
B+
Retailer 4
-
£747 GBP
$1,003 USD
View
B+
Retailer 5
-
£883 GBP
View
Most Expensive
B
Rare Carat
SM-47-4602_l_847671564 · Nov 1
£931 GBP
$1,250 USD
View
5 more retailers have this diamond
Prices start from £372 GBPSave up to £560 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
£372 GBP