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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 $8,644 NZD
$4,872 USD
As of October 31, 2026
Save $33,300 NZD (79%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $65,933 NZD 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: $65,933 NZD|Low: $8,644 NZD|High: $6,829,342 NZD|Avg: $1,361,622 NZD
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 11$8,644 NZD
Retailer 14$8,730 NZD
Retailer 13$9,798 NZD
Retailer 12$10,802 NZD
Retailer 2$11,185 NZD
Retailer 3$11,249 NZD
Retailer 8$13,382 NZD
Retailer 9$16,300 NZD
Retailer 4$24,016 NZD
Retailer 10$26,527 NZD
Retailer 6$30,760 NZD
Retailer 5$34,047 NZD
Retailer 15$39,375 NZD
Retailer 7$41,944 NZD
Brilliant Earth$65,933 NZD

7 data points across 15 retailers

15 retailers$8,644 NZD to $41,944 NZD

A
Cheapest Retailer
-
$8,644 NZD
$4,872 USD
A
Retailer 2
-
$8,730 NZD
$4,920 USD
View
A
Retailer 3
-
$9,798 NZD
$5,522 USD
View
Final sale: no returns
B+
Retailer 4
-
$10,802 NZD
$6,088 USD
View
B+
Retailer 5
-
$11,185 NZD
£4,964 GBP
View
B+
Retailer 6
-
$11,249 NZD
$6,340 USD
View
B+
Retailer 7
-
$13,382 NZD
$7,542 USD
View
B
Retailer 8
-
$16,300 NZD
A$14,133 AUD
View
B
Retailer 9
-
$24,016 NZD
$13,536 USD
View
B
Retailer 10
-
$26,527 NZD
A$23,001 AUD
View
B
Retailer 11
-
$30,760 NZD
$17,336 USD
View
B
Retailer 12
-
$34,047 NZD
$19,189 USD
View
B
Retailer 13
-
$39,375 NZD
$22,192 USD
View
B
Retailer 14
-
$41,944 NZD
ZAR 381,902 ZAR
View
Most Expensive
Brilliant Earth
22295256A · Oct 31
$65,933 NZD
$37,160 USD
View
Price under review
14 more retailers have this diamond
Prices start from $8,644 NZDSave up to $33,300 NZD

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
$8,644 NZD