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Emerald|Lab Grown|IGI

18.45ct F VS2 Emerald Lab Grown Diamond

ID • F/VS2 • IGI LG687566008

Shape and cutting style on the report: Emerald cut

Certificate IGI LG687566008

Diamond specifications and retailer prices

From $7,004 AUD
$4,920 USD
As of October 30, 2026
Save $22,715 AUD (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $42,680 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 18.45ct lab-grown emerald diamond

This 18.45ct lab-grown emerald sits in the over five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG687566008 or 687566008. Listed at 18 retailers as of October 30, 2026, with a 324% 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

18.45
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687566008
Dimensions17.07 × 12.07 × 8.05 mm
L/W Ratio1.41
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.07 mm12.07 mm18.45 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687566008
Side View
Table 67.0%Crown 41.6°Girdle: Slightly ThickPavilion 40.6°Culet: LargeDepth 66.7%

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: $42,680 AUD|Low: $7,004 AUD|High: $42,680 AUD|Avg: $13,756 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
Retailer 16
Retailer 17
November 1, 2026
Retailer 15$7,004 AUD
Retailer 3$7,340 AUD
Retailer 8$8,124 AUD
Retailer 16$8,124 AUD
Retailer 14$8,129 AUD
Retailer 5$8,516 AUD
Retailer 7$8,540 AUD
Retailer 17$9,645 AUD
Retailer 4$10,187 AUD
Retailer 12$10,357 AUD
Retailer 10$11,553 AUD
Retailer 2$11,890 AUD
Retailer 13$14,969 AUD
Retailer 11$18,210 AUD
Retailer 9$29,144 AUD
Retailer 6$29,719 AUD
Brilliant Earth$42,680 AUD

43 data points across 17 retailers

18 retailers$7,004 AUD to $29,719 AUD

A
Cheapest Retailer
-
$7,004 AUD
$4,920 USD
A
Retailer 2
-
$7,340 AUD
$5,156 USD
View
B+
Retailer 3
-
$8,124 AUD
$5,707 USD
View
Retailer 4
-
$8,124 AUD
$5,707 USD
View
Price last confirmed 19 days ago
B+
Retailer 5
-
$8,129 AUD
$5,710 USD
View
B+
Retailer 6
-
$8,516 AUD
$5,982 USD
View
B+
Retailer 7
-
$8,540 AUD
$5,999 USD
View
Final sale: no returns
B+
Retailer 8
-
$9,645 AUD
$6,775 USD
View
B+
Retailer 9
-
$10,187 AUD
$7,156 USD
View
B+
Retailer 10
-
$10,357 AUD
£5,728 GBP
View
B+
Retailer 11
-
$11,553 AUD
$8,115 USD
View
B+
Retailer 12
-
$11,890 AUD
$8,352 USD
View
Retailer 13
-
$13,548 AUD
$9,517 USD
View
Price last confirmed 76 days ago
B
Retailer 14
-
$14,969 AUD
€10,014 EUR
View
B
Retailer 15
-
$18,210 AUD
View
B
Retailer 16
-
$29,144 AUD
$20,472 USD
View
B
Retailer 17
-
$29,719 AUD
$20,876 USD
View
Most Expensive
Brilliant Earth
16226712A · Oct 31
$42,680 AUD
$29,980 USD
View
Price under review
17 more retailers have this diamond
Prices start from $7,004 AUDSave up to $22,715 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
18.45ct Emerald
$7,004 AUD