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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 $6,936 AUD
$4,872 USD
As of October 31, 2026
Save $26,718 AUD (79%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $52,901 AUD 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: $52,901 AUD|Low: $6,936 AUD|High: $5,479,485 AUD|Avg: $1,408,262 AUD
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$6,936 AUD
Retailer 14$7,004 AUD
Retailer 13$7,861 AUD
Retailer 12$8,667 AUD
Retailer 10$8,975 AUD
Retailer 3$9,026 AUD
Retailer 2$10,737 AUD
Retailer 8$13,078 AUD
Retailer 4$19,269 AUD
Retailer 9$21,284 AUD
Retailer 6$24,680 AUD
Retailer 5$27,317 AUD
Retailer 15$31,593 AUD
Retailer 7$33,654 AUD
Brilliant Earth$52,901 AUD

6 data points across 15 retailers

15 retailers$6,936 AUD to $33,654 AUD

A
Cheapest Retailer
-
$6,936 AUD
$4,872 USD
A
Retailer 2
-
$7,004 AUD
$4,920 USD
View
A
Retailer 3
-
$7,861 AUD
$5,522 USD
View
Final sale: no returns
B+
Retailer 4
-
$8,667 AUD
$6,088 USD
View
B+
Retailer 5
-
$8,975 AUD
£4,964 GBP
View
B+
Retailer 6
-
$9,026 AUD
$6,340 USD
View
B
Retailer 7
-
$13,078 AUD
View
B
Retailer 8
-
$19,269 AUD
$13,536 USD
View
B
Retailer 9
-
$21,284 AUD
View
B
Retailer 10
-
$24,680 AUD
$17,336 USD
View
B
Retailer 11
-
$27,317 AUD
$19,189 USD
View
B
Retailer 12
-
$31,593 AUD
$22,192 USD
View
B
Retailer 13
-
$33,654 AUD
ZAR 381,902 ZAR
View
Most Expensive
Brilliant Earth
22295256A · Oct 31
$52,901 AUD
$37,160 USD
View
Price under review
13 more retailers have this diamond
Prices start from $6,936 AUDSave up to $26,718 AUD

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
$6,936 AUD