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Emerald|Lab Grown|IGI

1.66ct F VS1 Emerald Lab Grown Diamond

ID • F/VS1 • IGI LG784634976

Shape and cutting style on the report: Emerald cut

Certificate IGI LG784634976

Diamond specifications and retailer prices

From £154 GBP
$207 USD
As of October 30, 2026
Save £639 GBP (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £793 GBP at With Clarity · As of November 1, 2026
View at With Clarity

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 LG784634976 or 784634976. Listed at 12 retailers as of October 30, 2026, with prices from £154 to £793, a £639 spread on the same certified stone. With Clarity lists it at £793. 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 angle36.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784634976
Dimensions8.15 × 5.60 × 3.72 mm
L/W Ratio1.46
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.15 mm5.60 mm1.66 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784634976
Side View
Table 64.0%Crown 36.5°Girdle: MediumPavilion 40.6°Culet: LargeDepth 66.4%

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: Oct 30
Current: £322 GBP|Low: £150 GBP|High: £788 GBP|Avg: £544 GBP|+3.0%
Retailer 1
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
With Clarity
October 29, 2026
Retailer 3£154 GBP
Retailer 11£179 GBP
Retailer 1£322 GBP
Retailer 4£333 GBP
Retailer 13£442 GBP
Retailer 8£447 GBP
Retailer 6£578 GBP
Retailer 14£615 GBP
Retailer 10£617 GBP
Retailer 5£624 GBP
Retailer 12£710 GBP
Retailer 9£741 GBP
Retailer 7£770 GBP
Retailer 2£771 GBP
With Clarity£788 GBP

26 data points across 15 retailers

12 retailers£154 GBP to £793 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
-
£741 GBP
$995 USD
View
B+
Retailer 10
-
£770 GBP
View
Retailer 11
-
£771 GBP
SGD 1,399 SGD
View
Price last confirmed 20 days ago
Most Expensive
B
With Clarity
784634976 · Nov 1
£793 GBP
$1,064 USD
View
11 more retailers have this diamond
Prices start from £154 GBPSave up to £639 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