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Emerald|Lab Grown|IGI

0.91ct I SI1 Emerald Lab Grown Diamond

ID • I/SI1 • IGI LG436045872

Shape and cutting style on the report: Emerald cut

Certificate IGI LG436045872

Diamond specifications and retailer prices

From £478 GBP
$640 USD
As of October 29, 2026
Save £2,033 GBP (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,511 GBP at MOH London · As of October 29, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436045872 or 436045872. Listed at 10 retailers as of October 29, 2026, with prices from £478 to £2,511, a £2,033 spread on the same certified stone. MOH London lists it at £2,511. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.91
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle18.5°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045872
Dimensions6.54 × 4.56 × 3.07 mm
L/W Ratio1.43
Culet sizeLong
Cert comments
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Top View
6.54 mm4.56 mm0.91 ctI / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436045872
Side View
Table 61.5%Crown 18.5°Girdle: MediumPavilion 41.6°Culet: LNGDepth 67.3%

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 29
Current: £2,511 GBP|Low: £478 GBP|High: £2,862 GBP|Avg: £1,166 GBP|-0.5%
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
October 21, 2026
Retailer 7£478 GBP
Retailer 6£575 GBP
Retailer 12£625 GBP
Retailer 13£643 GBP
Retailer 8£666 GBP
Retailer 11£666 GBP
Retailer 3£799 GBP
Retailer 4£1,031 GBP
Retailer 9£1,078 GBP
Retailer 2£1,584 GBP
Retailer 10£1,873 GBP
MOH London£2,511 GBP
Retailer 5£2,862 GBP

16 data points across 13 retailers

10 retailers£478 GBP to £2,511 GBP

A
Cheapest Retailer
-
£478 GBP
$640 USD
B+
Retailer 2
-
£575 GBP
$770 USD
View
B
Retailer 3
-
£625 GBP
$837 USD
View
B
Retailer 4
-
£643 GBP
$861 USD
View
Final sale: no returns
B
Retailer 5
-
£666 GBP
$893 USD
View
Retailer 6
-
£666 GBP
$893 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
£1,078 GBP
$1,444 USD
View
B
Retailer 8
-
£1,584 GBP
$2,123 USD
View
B
Retailer 9
-
£1,873 GBP
$2,510 USD
View
Most Expensive
B
MOH London
LG436045872 · Oct 29
£2,511 GBP
View
9 more retailers have this diamond
Prices start from £478 GBPSave up to £2,033 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
0.91ct Emerald
£478 GBP