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Emerald|Lab Grown|IGI

1.64ct I SI1 Emerald Lab Grown Diamond

ID • I/SI1 • IGI LG425067413

Shape and cutting style on the report: Emerald cut

Certificate IGI LG425067413

Diamond specifications and retailer prices

From £679 GBP
$910 USD
As of October 30, 2026
Save £2,836 GBP (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,516 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.64ct lab-grown emerald diamond

This 1.64ct lab-grown emerald sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG425067413 or 425067413. Listed at 11 retailers as of October 29, 2026, with prices from £679 to £3,516, a £2,836 spread on the same certified stone. MOH London lists it at £3,516. 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

1.64
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle22.6°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425067413
Dimensions8.02 × 5.62 × 3.76 mm
L/W Ratio1.43
Culet sizeLong
Cert comments
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Top View
8.02 mm5.62 mm1.64 ctI / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG425067413
Side View
Table 63.0%Crown 22.6°Girdle: MediumPavilion 39.3°Culet: LNGDepth 66.9%

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 30
Current: £3,516 GBP|Low: £679 GBP|High: £3,543 GBP|Avg: £1,751 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
Retailer 14
October 30, 2026
Retailer 2£679 GBP
Retailer 7£1,055 GBP
Retailer 12£1,149 GBP
Retailer 13£1,181 GBP
Retailer 8£1,224 GBP
Retailer 11£1,224 GBP
Retailer 14£1,351 GBP
Retailer 6£1,362 GBP
Retailer 4£1,673 GBP
Retailer 9£1,932 GBP
Retailer 3£2,222 GBP
Retailer 10£2,295 GBP
Retailer 5£3,505 GBP
MOH London£3,516 GBP

17 data points across 14 retailers

11 retailers£679 GBP to £3,516 GBP

A
Cheapest Retailer
-
£679 GBP
$910 USD
B
Retailer 2
-
£1,055 GBP
$1,414 USD
View
B
Retailer 3
-
£1,149 GBP
$1,539 USD
View
B
Retailer 4
-
£1,181 GBP
$1,583 USD
View
Final sale: no returns
B
Retailer 5
-
£1,224 GBP
$1,640 USD
View
Retailer 6
-
£1,224 GBP
$1,640 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
£1,351 GBP
$1,810 USD
View
B
Retailer 8
-
£1,932 GBP
$2,588 USD
View
B
Retailer 9
-
£2,222 GBP
$2,977 USD
View
B
Retailer 10
-
£2,295 GBP
$3,075 USD
View
Most Expensive
B
MOH London
LG425067413 · Oct 29
£3,516 GBP
View
10 more retailers have this diamond
Prices start from £679 GBPSave up to £2,836 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
1.64ct Emerald
£679 GBP