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Heart|Lab Grown|IGI

6.51ct E VVS2 Heart Lab Grown Diamond

EX • E/VVS2 • IGI LG819631692

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG819631692

Diamond specifications and retailer prices

From $2,725 NZD
HK$12,000 HKD
As of October 30, 2026
Save $5,788 NZD (68%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $10,517 NZD at Novita Diamonds · As of October 8, 2026
View at Novita Diamonds

About this 6.51ct lab-grown heart diamond

This 6.51ct lab-grown heart sits in the over five carat band, graded E colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG819631692 or 819631692. Listed at 9 retailers as of October 30, 2026, with a 212% 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

6.51
Carat
E
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819631692
Dimensions11.67 × 12.89 × 7.60 mm
L/W Ratio1.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.67 mm12.89 mm6.51 ctE / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819631692
Side View
Table 60.0%Crown 34.1°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 59.0%

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: Oct 30
Current: $10,517 NZD|Low: $2,725 NZD|High: $10,517 NZD|Avg: $6,031 NZD|+3.6%
Novita Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 6$2,725 NZD
Retailer 2$3,342 NZD
Retailer 7$3,666 NZD
Retailer 3$3,711 NZD
Retailer 8$5,520 NZD
Retailer 4$7,447 NZD
Retailer 9$8,064 NZD
Retailer 5$8,513 NZD
Novita Diamonds$10,517 NZD

40 data points across 9 retailers

9 retailers$2,725 NZD to $8,513 NZD

A
Cheapest Retailer
-
$2,725 NZD
HK$12,000 HKD
A
Retailer 2
-
$3,342 NZD
£1,483 GBP
View
A
Retailer 3
-
$3,666 NZD
$2,066 USD
View
A
Retailer 4
-
$3,711 NZD
€1,992 EUR
View
B+
Retailer 5
-
$5,520 NZD
$3,111 USD
View
B+
Retailer 6
-
$7,447 NZD
£3,305 GBP
View
B+
Retailer 7
-
$8,064 NZD
$4,545 USD
View
B
Retailer 8
-
$8,513 NZD
$4,798 USD
View
Most Expensive
Novita Diamonds
cert_819631692 · Oct 8
$10,517 NZD
A$9,119 AUD
View
Price last confirmed 21 days ago
8 more retailers have this diamond
Prices start from $2,725 NZDSave up to $5,788 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
6.51ct Heart
$2,725 NZD