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Heart|Lab Grown|IGI

12.33ct H VS1 Heart Lab Grown Diamond

EX • H/VS1 • IGI LG602390181

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG602390181

Diamond specifications and retailer prices

From $9,109 NZD
$5,134 USD
As of November 1, 2026
Save $24,620 NZD (73%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $33,729 NZD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 12.33ct lab-grown heart diamond

This 12.33ct lab-grown heart sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG602390181 or 602390181. Listed at 16 retailers as of October 31, 2026, with prices from $9,109 to $33,729, a $24,620 spread on the same certified stone. Taylor and Hart lists it at $33,729. 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

12.33
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG602390181
Dimensions14.00 × 15.89 × 9.24 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
14.00 mm15.89 mm12.33 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG602390181
Side View
Table 63.0%Crown 37.6°Girdle: STK-THKPavilion 37.9°Culet: NoneDepth 58.1%

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 1
Current: $17,858 NZD|Low: $7,809 NZD|High: $33,729 NZD|Avg: $14,335 NZD|-0.2%
Retailer 1
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
Taylor and Hart
November 1, 2026
Retailer 12$8,133 NZD
Retailer 2$8,524 NZD
Retailer 4$9,109 NZD
Retailer 10$9,377 NZD
Retailer 13$9,436 NZD
Retailer 3$9,581 NZD
Retailer 11$11,191 NZD
Retailer 15$11,790 NZD
Retailer 7$11,941 NZD
Retailer 9$14,292 NZD
Retailer 14$14,592 NZD
Retailer 8$14,604 NZD
Retailer 6$15,109 NZD
Retailer 1$17,858 NZD
Retailer 5$26,222 NZD
Taylor and Hart$33,729 NZD

22 data points across 16 retailers

16 retailers$9,109 NZD to $33,729 NZD

Retailer 1
-
$8,133 NZD
$4,584 USD
Price last confirmed 11 days ago
Retailer 2
-
$8,524 NZD
$4,804 USD
View
Price last confirmed 12 days ago
A
Retailer 3
-
$9,109 NZD
$5,134 USD
View
Final sale: no returns
A
Retailer 4
-
$9,377 NZD
$5,285 USD
View
Retailer 5
-
$9,436 NZD
$5,318 USD
View
Price last confirmed 11 days ago
Retailer 6
-
$9,436 NZD
$5,318 USD
View
Price last confirmed 20 days ago
B+
Retailer 7
-
$9,581 NZD
$5,400 USD
View
B+
Retailer 8
-
$11,191 NZD
$6,307 USD
View
Retailer 9
-
$11,790 NZD
$6,645 USD
View
Price last confirmed 11 days ago
Retailer 10
-
$12,759 NZD
$7,191 USD
View
Price last confirmed 19 days ago
B+
Retailer 11
-
$14,292 NZD
$8,055 USD
View
B
Retailer 12
-
$14,592 NZD
$8,224 USD
View
B+
Retailer 13
-
$14,604 NZD
ZAR 132,971 ZAR
View
B
Retailer 14
-
$17,858 NZD
A$15,484 AUD
View
B
Retailer 15
-
$26,222 NZD
$14,779 USD
View
Most Expensive
B
Taylor and Hart
6ZMYRM5 · Oct 31
$33,729 NZD
$19,010 USD
View
15 more retailers have this diamond
Prices start from $9,109 NZDSave up to $24,620 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
12.33ct Heart
$9,109 NZD