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Heart|Lab Grown|IGI

18.12ct F VS2 Heart Lab Grown Diamond

ID • F/VS2 • IGI LG776651106

Shape and cutting style on the report: Heart modified brilliant

Certificate IGI LG776651106

Diamond specifications and retailer prices

From $10,345 AUD
$7,250 USD
As of November 3, 2026
Save $31,663 AUD (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $42,008 AUD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 18.12ct lab-grown heart diamond

This 18.12ct lab-grown heart 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 LG776651106 or 776651106. Listed at 12 retailers as of November 2, 2026, with prices from $10,345 to $42,008, a $31,663 spread on the same certified stone. Brilliant Earth lists it at $42,008. 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

18.12
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle31.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG776651106
Dimensions17.42 × 16.16 × 9.52 mm
L/W Ratio1.08
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.42 mm16.16 mm18.12 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG776651106
Side View
Table 58.0%Crown 35°Girdle: STK-THKPavilion 31.3°Culet: NoneDepth 54.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: $42,008 AUD|Low: $10,345 AUD|High: $43,306 AUD|Avg: $25,717 AUD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 7$10,345 AUD
Retailer 8$12,298 AUD
Retailer 2$12,846 AUD
Retailer 11$15,383 AUD
Retailer 9$15,958 AUD
Retailer 6$21,384 AUD
Retailer 5$26,633 AUD
Retailer 10$29,488 AUD
Retailer 4$35,866 AUD
Retailer 3$39,817 AUD
Brilliant Earth$42,008 AUD
Retailer 12$42,432 AUD

37 data points across 12 retailers

12 retailers$10,345 AUD to $42,008 AUD

A
Cheapest Retailer
-
$10,345 AUD
$7,250 USD
A
Retailer 2
-
$12,298 AUD
$8,619 USD
View
A
Retailer 3
-
$12,846 AUD
£7,089 GBP
View
B+
Retailer 4
-
$15,383 AUD
$10,781 USD
View
Final sale: no returns
B+
Retailer 5
-
$15,958 AUD
$11,184 USD
View
B+
Retailer 6
-
$21,384 AUD
View
B
Retailer 7
-
$24,971 AUD
€16,667 EUR
View
B
Retailer 8
-
$26,633 AUD
€17,776 EUR
View
B
Retailer 9
-
$29,488 AUD
$20,666 USD
View
B
Retailer 10
-
$35,866 AUD
$25,136 USD
View
B
Retailer 11
-
$39,817 AUD
$27,905 USD
View
Most Expensive
B
Brilliant Earth
20464725A · Nov 2
$42,008 AUD
$29,440 USD
View
11 more retailers have this diamond
Prices start from $10,345 AUDSave up to $31,663 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
18.12ct Heart
$10,345 AUD