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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 $12,885 NZD
$7,250 USD
As of November 3, 2026
Save $39,438 NZD (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $52,324 NZD 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 $12,885 to $52,324, a $39,438 spread on the same certified stone. Brilliant Earth lists it at $52,324. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: $52,324 NZD|Low: $12,885 NZD|High: $53,941 NZD|Avg: $32,032 NZD|-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$12,885 NZD
Retailer 8$15,319 NZD
Retailer 2$16,001 NZD
Retailer 11$19,161 NZD
Retailer 9$19,877 NZD
Retailer 6$26,635 NZD
Retailer 5$33,173 NZD
Retailer 10$36,730 NZD
Retailer 4$44,674 NZD
Retailer 3$49,595 NZD
Brilliant Earth$52,324 NZD
Retailer 12$52,852 NZD

37 data points across 12 retailers

12 retailers$12,885 NZD to $52,324 NZD

A
Cheapest Retailer
-
$12,885 NZD
$7,250 USD
A
Retailer 2
-
$15,319 NZD
$8,619 USD
View
A
Retailer 3
-
$16,001 NZD
£7,089 GBP
View
B+
Retailer 4
-
$19,161 NZD
$10,781 USD
View
Final sale: no returns
B+
Retailer 5
-
$19,877 NZD
$11,184 USD
View
B+
Retailer 6
-
$26,635 NZD
A$23,056 AUD
View
B
Retailer 7
-
$31,103 NZD
€16,667 EUR
View
B
Retailer 8
-
$33,173 NZD
€17,776 EUR
View
B
Retailer 9
-
$36,730 NZD
$20,666 USD
View
B
Retailer 10
-
$44,674 NZD
$25,136 USD
View
Retailer 11
-
$49,595 NZD
$27,905 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Brilliant Earth
20464725A · Nov 2
$52,324 NZD
$29,440 USD
View
11 more retailers have this diamond
Prices start from $12,885 NZDSave up to $39,438 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
18.12ct Heart
$12,885 NZD