CaratHunter
Plans
Emerald|Lab Grown|IGI

1.05ct E SI1 Emerald Lab Grown Diamond

ID • E/SI1 • IGI LG371912088

Shape and cutting style on the report: Emerald cut

Certificate IGI LG371912088

Diamond specifications and retailer prices

From £109 GBP
As of November 6, 2026
Save £582 GBP (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £691 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.05ct lab-grown emerald diamond

This 1.05ct lab-grown emerald sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG371912088 or 371912088. Listed at 13 retailers as of November 4, 2026, with prices from £109 to £691, a £582 spread on the same certified stone. Brilliant Earth lists it at £691. 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

1.05
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG371912088
Dimensions6.74 × 4.84 × 3.26 mm
L/W Ratio1.39
Culet sizeLarge
Cert comments
This laboratory grown diamond is classified as Type II.
Top View
6.74 mm4.84 mm1.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG371912088
Side View
Table 68.0%CrownGirdle: MediumPavilionCulet: LargeDepth 67.4%

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 6
Current: £691 GBP|Low: £105 GBP|High: £713 GBP|Avg: £247 GBP|-3.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 7£109 GBP
Retailer 11£122 GBP
Retailer 8£135 GBP
Retailer 9£135 GBP
Retailer 10£184 GBP
Retailer 2£231 GBP
Retailer 3£257 GBP
Retailer 4£257 GBP
Retailer 5£257 GBP
Retailer 6£325 GBP
Brilliant Earth£691 GBP

44 data points across 11 retailers

13 retailers£109 GBP to £691 GBP

A
Cheapest Retailer
-
£109 GBP
A
Retailer 2
-
£122 GBP
View
Final sale: no returns
A
Retailer 3
-
£126 GBP
View
A
Retailer 4
-
£135 GBP
View
Retailer 5
-
£135 GBP
View
Price last confirmed 12 days ago
B+
Retailer 6
-
£184 GBP
View
A
Retailer 7
-
£231 GBP
View
A
Retailer 8
-
£257 GBP
View
B+
Retailer 9
-
£257 GBP
View
Retailer 10
-
£257 GBP
View
Price last confirmed 8 days ago
B+
Retailer 11
-
£325 GBP
View
B+
Retailer 12
-
£435 GBP
View
Most Expensive
B
Brilliant Earth
18032335A · Nov 4
£691 GBP
$930 USD
View
12 more retailers have this diamond
Prices start from £109 GBPSave up to £582 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
1.05ct Emerald
£109 GBP