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Emerald|Lab Grown|IGI

0.91ct F SI2 Emerald Lab Grown Diamond

GD • F/SI2 • IGI LG520297734

Shape and cutting style on the report: Emerald cut

Certificate IGI LG520297734

Diamond specifications and retailer prices

From £115 GBP
$154 USD
As of October 29, 2026
Save £620 GBP (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £735 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.91ct lab-grown emerald diamond

This 0.91ct lab-grown emerald sits in the just-under-one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI LG520297734 or 520297734. Listed at 14 retailers as of October 26, 2026, with prices from £115 to £735, a £620 spread on the same certified stone. MOH London lists it at £735. 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

0.91
Carat
F
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle25.8°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG520297734
Dimensions6.54 × 4.57 × 3.10 mm
L/W Ratio1.43
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.54 mm4.57 mm0.91 ctF / SI2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG520297734
Side View
Table 67.5%Crown 25.8°Girdle: MED-STKPavilion 35.8°Culet: LNGDepth 67.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £735 GBP|Low: £110 GBP|High: £742 GBP|Avg: £357 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 9£115 GBP
Retailer 3£133 GBP
Retailer 11£142 GBP
Retailer 14£142 GBP
Retailer 7£213 GBP
Retailer 10£272 GBP
Retailer 4£302 GBP
Retailer 5£326 GBP
Retailer 2£358 GBP
Retailer 8£483 GBP
Retailer 13£505 GBP
Retailer 12£529 GBP
Retailer 6£581 GBP
MOH London£735 GBP

20 data points across 14 retailers

14 retailers£115 GBP to £735 GBP

B+
Cheapest Retailer
-
£115 GBP
$154 USD
B+
Retailer 2
-
£133 GBP
$178 USD
View
B+
Retailer 3
-
£142 GBP
$190 USD
View
B+
Retailer 4
-
£142 GBP
$190 USD
View
B+
Retailer 5
-
£213 GBP
$285 USD
View
B+
Retailer 6
-
£272 GBP
$365 USD
View
B+
Retailer 7
-
£302 GBP
$405 USD
View
B+
Retailer 8
-
£326 GBP
$436 USD
View
B
Retailer 9
-
£358 GBP
$480 USD
View
B
Retailer 10
-
£483 GBP
$647 USD
View
B
Retailer 11
-
£505 GBP
$676 USD
View
B
Retailer 12
-
£529 GBP
$709 USD
View
C
Retailer 13
-
£581 GBP
$779 USD
View
Most Expensive
B
MOH London
LG520297734 · Oct 26
£735 GBP
View
13 more retailers have this diamond
Prices start from £115 GBPSave up to £620 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.

B+
0.91ct Emerald
£115 GBP