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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 $8,730 NZD
$4,920 USD
As of November 2, 2026
Save $28,311 NZD (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $53,194 NZD 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 31, 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: Nov 2
Current: $53,194 NZD|Low: $8,730 NZD|High: $53,194 NZD|Avg: $17,170 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
Retailer 16
Retailer 17
November 2, 2026
Retailer 15$8,730 NZD
Retailer 3$9,148 NZD
Retailer 8$10,126 NZD
Retailer 16$10,126 NZD
Retailer 14$10,131 NZD
Retailer 5$10,614 NZD
Retailer 7$10,644 NZD
Retailer 17$12,021 NZD
Retailer 4$12,697 NZD
Retailer 2$12,908 NZD
Retailer 11$14,398 NZD
Retailer 10$14,819 NZD
Retailer 13$18,656 NZD
Retailer 12$22,696 NZD
Retailer 9$36,323 NZD
Retailer 6$37,040 NZD
Brilliant Earth$53,194 NZD

43 data points across 17 retailers

18 retailers$8,730 NZD to $37,040 NZD

A
Cheapest Retailer
-
$8,730 NZD
$4,920 USD
A
Retailer 2
-
$9,148 NZD
$5,156 USD
View
B+
Retailer 3
-
$10,126 NZD
$5,707 USD
View
Retailer 4
-
$10,126 NZD
$5,707 USD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
$10,131 NZD
$5,710 USD
View
B+
Retailer 6
-
$10,614 NZD
$5,982 USD
View
B+
Retailer 7
-
$10,644 NZD
$5,999 USD
View
Final sale: no returns
B+
Retailer 8
-
$12,021 NZD
$6,775 USD
View
B+
Retailer 9
-
$12,697 NZD
$7,156 USD
View
B+
Retailer 10
-
$12,908 NZD
£5,728 GBP
View
B+
Retailer 11
-
$14,398 NZD
$8,115 USD
View
B+
Retailer 12
-
$14,819 NZD
$8,352 USD
View
Retailer 13
-
$16,885 NZD
$9,517 USD
View
Price last confirmed 77 days ago
B
Retailer 14
-
$18,656 NZD
€10,014 EUR
View
B
Retailer 15
-
$22,696 NZD
A$19,679 AUD
View
B
Retailer 16
-
$36,323 NZD
$20,472 USD
View
B
Retailer 17
-
$37,040 NZD
$20,876 USD
View
Most Expensive
Brilliant Earth
16226712A · Oct 31
$53,194 NZD
$29,980 USD
View
Price under review
17 more retailers have this diamond
Prices start from $8,730 NZDSave up to $28,311 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
18.45ct Emerald
$8,730 NZD