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Emerald|Lab Grown|IGI

1.65ct E SI1 Emerald Lab Grown Diamond

ID • E/SI1 • IGI LG572340284

Shape and cutting style on the report: Emerald cut

Certificate IGI LG572340284

Diamond specifications and retailer prices

From £143 GBP
$190 USD
As of October 27, 2026
Save £1,239 GBP (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,382 GBP at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 1.65ct lab-grown emerald diamond

This 1.65ct lab-grown emerald sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG572340284 or 572340284. Listed at 10 retailers as of October 26, 2026, with prices from £143 to £1,382, a £1,239 spread on the same certified stone. Brilliant Earth lists it at £1,382. 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

1.65
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG572340284
Dimensions8.11 × 5.48 × 3.71 mm
L/W Ratio1.48
Culet sizeLarge
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
8.11 mm5.48 mm1.65 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG572340284
Side View
Table 61.5%Crown 35.5°Girdle: MediumPavilion 40°Culet: LargeDepth 67.7%

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: Oct 27
Current: £1,382 GBP|Low: £110 GBP|High: £1,427 GBP|Avg: £573 GBP|-3.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 25, 2026
Retailer 9£143 GBP
Retailer 12£161 GBP
Retailer 8£166 GBP
Retailer 7£310 GBP
Retailer 4£327 GBP
Retailer 3£409 GBP
Retailer 5£571 GBP
Retailer 10£616 GBP
Retailer 11£629 GBP
Retailer 2£784 GBP
Retailer 6£1,374 GBP
Brilliant Earth£1,382 GBP

17 data points across 12 retailers

10 retailers£143 GBP to £1,382 GBP

A
Cheapest Retailer
-
£143 GBP
$190 USD
A
Retailer 2
-
£161 GBP
$215 USD
View
Final sale: no returns
A
Retailer 3
-
£166 GBP
$221 USD
View
B+
Retailer 4
-
£310 GBP
$413 USD
View
B
Retailer 5
-
£571 GBP
$761 USD
View
B+
Retailer 6
-
£616 GBP
$821 USD
View
B
Retailer 7
-
£629 GBP
$837 USD
View
B
Retailer 8
-
£784 GBP
View
B
Retailer 9
-
£1,374 GBP
$1,830 USD
View
Most Expensive
B
Brilliant Earth
7031198Y · Oct 26
£1,382 GBP
$1,840 USD
View
9 more retailers have this diamond
Prices start from £143 GBPSave up to £1,239 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
1.65ct Emerald
£143 GBP