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Heart|Lab Grown|IGI

4.23ct E VVS1 Heart Lab Grown Diamond

EX • E/VVS1 • IGI LG766688491

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG766688491

Diamond specifications and retailer prices

From $3,969 NZD
$2,233 USD
As of November 2, 2026
Save $7,966 NZD (67%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $11,934 NZD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 4.23ct lab-grown heart diamond

This 4.23ct 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 LG766688491 or 766688491. Listed at 7 retailers as of October 31, 2026, with prices from $3,969 to $11,934, a $7,966 spread on the same certified stone. Taylor and Hart lists it at $11,934. 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

4.23
Carat
E
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766688491
Dimensions10.36 × 11.09 × 6.21 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.36 mm11.09 mm4.23 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG766688491
Side View
Table 57.0%Crown 33°Girdle: STK-THKPavilion 36.8°Culet: NoneDepth 56.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $5,270 NZD|Low: $3,969 NZD|High: $11,934 NZD|Avg: $6,666 NZD|-5.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Taylor and Hart
November 2, 2026
Retailer 5$3,969 NZD
Retailer 2$4,818 NZD
Retailer 1$5,270 NZD
Retailer 6$5,343 NZD
Retailer 4$5,677 NZD
Retailer 3$9,762 NZD
Taylor and Hart$11,934 NZD

15 data points across 7 retailers

7 retailers$3,969 NZD to $11,934 NZD

B+
Cheapest Retailer
-
$3,969 NZD
$2,233 USD
B+
Retailer 2
-
$4,818 NZD
£2,135 GBP
View
B+
Retailer 3
-
$5,270 NZD
€2,824 EUR
View
B+
Retailer 4
-
$5,343 NZD
$3,006 USD
View
B+
Retailer 5
-
$5,677 NZD
$3,194 USD
View
B
Retailer 6
-
$9,762 NZD
£4,325 GBP
View
Most Expensive
B
Taylor and Hart
5LJM2AC · Oct 31
$11,934 NZD
$6,715 USD
View
6 more retailers have this diamond
Prices start from $3,969 NZDSave up to $7,966 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.

B+
4.23ct Heart
$3,969 NZD