CaratHunter
Plans
Emerald|Lab Grown|IGI

18.09ct F VVS2 Emerald Lab Grown Diamond

ID • F/VVS2 • IGI LG845670138

Shape and cutting style on the report: Emerald cut

Certificate IGI LG845670138

Diamond specifications and retailer prices

From £3,636 GBP
$4,872 USD
As of October 31, 2026
Save £14,007 GBP (79%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £27,734 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 18.09ct lab-grown emerald diamond

This 18.09ct lab-grown emerald sits in the over five carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG845670138 or 845670138. Listed at 15 retailers as of October 29, 2026, with a 385% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

18.09
Carat
F
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845670138
Dimensions18.14 × 12.20 × 8.13 mm
L/W Ratio1.49
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.14 mm12.20 mm18.09 ctF / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845670138
Side View
Table 69.0%Crown 39.8°Girdle: Slightly ThickPavilion 40.6°Culet: LargeDepth 66.6%

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 31
Current: £27,734 GBP|Low: £3,636 GBP|High: £2,872,650 GBP|Avg: £738,289 GBP
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 1, 2026
Retailer 11£3,636 GBP
Retailer 14£3,672 GBP
Retailer 13£4,121 GBP
Retailer 12£4,544 GBP
Retailer 10£4,705 GBP
Retailer 3£4,732 GBP
Retailer 2£5,629 GBP
Retailer 8£6,856 GBP
Retailer 4£10,102 GBP
Retailer 9£11,158 GBP
Retailer 6£12,939 GBP
Retailer 5£14,321 GBP
Retailer 15£16,563 GBP
Retailer 7£17,643 GBP
Brilliant Earth£27,734 GBP

6 data points across 15 retailers

15 retailers£3,636 GBP to £17,643 GBP

A
Cheapest Retailer
-
£3,636 GBP
$4,872 USD
A
Retailer 2
-
£3,672 GBP
$4,920 USD
View
A
Retailer 3
-
£4,121 GBP
$5,522 USD
View
Final sale: no returns
B+
Retailer 4
-
£4,544 GBP
$6,088 USD
View
B+
Retailer 5
-
£4,705 GBP
View
B+
Retailer 6
-
£4,732 GBP
$6,340 USD
View
B
Retailer 7
-
£6,856 GBP
A$14,133 AUD
View
B
Retailer 8
-
£10,102 GBP
$13,536 USD
View
B
Retailer 9
-
£11,158 GBP
A$23,001 AUD
View
B
Retailer 10
-
£12,939 GBP
$17,336 USD
View
B
Retailer 11
-
£14,321 GBP
$19,189 USD
View
B
Retailer 12
-
£16,563 GBP
$22,192 USD
View
B
Retailer 13
-
£17,643 GBP
ZAR 381,902 ZAR
View
Most Expensive
Brilliant Earth
22295256A · Oct 31
£27,734 GBP
$37,160 USD
View
Price under review
13 more retailers have this diamond
Prices start from £3,636 GBPSave up to £14,007 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
18.09ct Emerald
£3,636 GBP