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Emerald|Lab Grown|IGI

1.64ct G SI2 Emerald Lab Grown Diamond

ID • G/SI2 • IGI LG628481294

Shape and cutting style on the report: Emerald cut

Certificate IGI LG628481294

Diamond specifications and retailer prices

From £116 GBP
$156 USD
As of November 1, 2026
Save £682 GBP (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £799 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG628481294 or 628481294. Listed at 15 retailers as of October 31, 2026, with prices from £116 to £799, a £682 spread on the same certified stone. Brilliant Earth lists it at £799. 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
G
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628481294
Dimensions8.02 × 5.57 × 3.77 mm
L/W Ratio1.44
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
8.02 mm5.57 mm1.64 ctG / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628481294
Side View
Table 69.0%Crown 37.8°Girdle: MediumPavilion 40.5°Culet: LNGDepth 67.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £799 GBP|Low: £116 GBP|High: £1,119 GBP|Avg: £388 GBP|-28.7%
Brilliant Earth
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
Retailer 15
November 2, 2026
Retailer 10£116 GBP
Retailer 15£130 GBP
Retailer 5£134 GBP
Retailer 12£144 GBP
Retailer 6£149 GBP
Retailer 11£250 GBP
Retailer 2£252 GBP
Retailer 9£255 GBP
Retailer 4£262 GBP
Retailer 14£344 GBP
Retailer 8£387 GBP
Retailer 3£463 GBP
Retailer 7£653 GBP
Retailer 13£677 GBP
Brilliant Earth£799 GBP

38 data points across 15 retailers

15 retailers£116 GBP to £799 GBP

A
Cheapest Retailer
-
£116 GBP
$156 USD
B+
Retailer 2
-
£130 GBP
$174 USD
View
Final sale: no returns
A
Retailer 3
-
£134 GBP
$180 USD
View
A
Retailer 4
-
£144 GBP
$193 USD
View
Retailer 5
-
£149 GBP
$200 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
£250 GBP
€319 EUR
View
A
Retailer 7
-
£252 GBP
View
A
Retailer 8
-
£255 GBP
View
B+
Retailer 9
-
£262 GBP
$351 USD
View
A
Retailer 10
-
£344 GBP
$461 USD
View
B+
Retailer 11
-
£387 GBP
$519 USD
View
B+
Retailer 12
-
£463 GBP
$620 USD
View
Retailer 13
-
£653 GBP
$875 USD
View
Price last confirmed 35 days ago
B+
Retailer 14
-
£677 GBP
View
Most Expensive
B
Brilliant Earth
14251221A · Oct 31
£799 GBP
$1,070 USD
View
14 more retailers have this diamond
Prices start from £116 GBPSave up to £682 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
£116 GBP