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Heart|Lab Grown|IGI

4.20ct E VVS1 Heart Lab Grown Diamond

ID • E/VVS1 • IGI LG728568190

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG728568190

Diamond specifications and retailer prices

From $4,040 NZD
$2,273 USD
As of November 1, 2026
Save $8,846 NZD (69%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $24,811 NZD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 4.2ct lab-grown heart diamond

This 4.2ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG728568190 or 728568190. Listed at 12 retailers as of October 31, 2026, with a 219% 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

4.20
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728568190
Dimensions11.20 × 9.99 × 6.52 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.20 mm9.99 mm4.20 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728568190
Side View
Table 57.0%Crown 35.6°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 58.2%

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: $24,811 NZD|Low: $3,384 NZD|High: $29,094 NZD|Avg: $9,863 NZD|-14.7%
Do Amore Diamonds
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$4,040 NZD
Retailer 17$4,138 NZD
Retailer 12$4,479 NZD
Retailer 14$4,484 NZD
Retailer 3$5,879 NZD
Retailer 4$6,002 NZD
Retailer 13$6,711 NZD
Retailer 8$7,246 NZD
Retailer 6$7,472 NZD
Retailer 5$8,812 NZD
Retailer 10$9,895 NZD
Retailer 16$11,463 NZD
Retailer 9$11,965 NZD
Retailer 2$12,532 NZD
Retailer 7$12,723 NZD
Retailer 11$12,886 NZD
Do Amore Diamonds$24,811 NZD

20 data points across 17 retailers

12 retailers$4,040 NZD to $12,886 NZD

B+
Cheapest Retailer
-
$4,040 NZD
$2,273 USD
Final sale: no returns
A
Retailer 2
-
$4,138 NZD
$2,328 USD
View
B+
Retailer 3
-
$4,479 NZD
$2,520 USD
View
B+
Retailer 4
-
$4,484 NZD
$2,523 USD
View
B+
Retailer 5
-
$5,879 NZD
$3,308 USD
View
B+
Retailer 6
-
$6,002 NZD
$3,377 USD
View
B
Retailer 7
-
$6,711 NZD
$3,776 USD
View
B
Retailer 8
-
$9,895 NZD
A$8,565 AUD
View
B
Retailer 9
-
$11,463 NZD
$6,450 USD
View
B
Retailer 10
-
$12,532 NZD
£5,552 GBP
View
B
Retailer 11
-
$12,886 NZD
A$11,154 AUD
View
Most Expensive
Do Amore Diamonds
27-2A287F492 · Nov 2
$24,811 NZD
$13,960 USD
View
Price under review
11 more retailers have this diamond
Prices start from $4,040 NZDSave up to $8,846 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
4.20ct Heart
$4,040 NZD