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Emerald|Lab Grown|IGI

1.66ct F VS1 Emerald Lab Grown Diamond

ID • F/VS1 • IGI LG782629342

Shape and cutting style on the report: Emerald cut

Certificate IGI LG782629342

Diamond specifications and retailer prices

From £154 GBP
$207 USD
As of October 30, 2026
Save £911 GBP (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,066 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.66ct lab-grown emerald diamond

This 1.66ct lab-grown emerald sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG782629342 or 782629342. Listed at 12 retailers as of October 30, 2026, with prices from £154 to £1,066, a £911 spread on the same certified stone. Brilliant Earth lists it at £1,066. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782629342
Dimensions7.88 × 5.62 × 3.81 mm
L/W Ratio1.40
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.88 mm5.62 mm1.66 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782629342
Side View
Table 63.0%Crown 35.9°Girdle: MediumPavilion 39.4°Culet: LargeDepth 67.8%

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: £1,066 GBP|Low: £150 GBP|High: £1,259 GBP|Avg: £577 GBP|-15.4%
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
October 30, 2026
Retailer 3£154 GBP
Retailer 11£179 GBP
Retailer 2£322 GBP
Retailer 5£333 GBP
Retailer 13£442 GBP
Retailer 9£447 GBP
Retailer 7£578 GBP
Retailer 14£615 GBP
Retailer 10£617 GBP
Retailer 6£624 GBP
Retailer 12£710 GBP
Retailer 8£770 GBP
Retailer 15£771 GBP
Retailer 4£788 GBP
Brilliant Earth£1,066 GBP

26 data points across 15 retailers

12 retailers£154 GBP to £1,066 GBP

A
Cheapest Retailer
-
£154 GBP
$207 USD
A
Retailer 2
-
£179 GBP
$240 USD
View
A
Retailer 3
-
£322 GBP
€412 EUR
View
A
Retailer 4
-
£442 GBP
$593 USD
View
A
Retailer 5
-
£447 GBP
A$922 AUD
View
B+
Retailer 6
-
£615 GBP
$825 USD
View
B+
Retailer 7
-
£617 GBP
$828 USD
View
B+
Retailer 8
-
£710 GBP
$953 USD
View
B+
Retailer 9
-
£770 GBP
View
Retailer 10
-
£771 GBP
SGD 1,399 SGD
View
Price last confirmed 20 days ago
B
Retailer 11
-
£793 GBP
$1,064 USD
View
Most Expensive
B
Brilliant Earth
20811727A · Oct 30
£1,066 GBP
$1,430 USD
View
11 more retailers have this diamond
Prices start from £154 GBPSave up to £911 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
1.66ct Emerald
£154 GBP