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Heart|Lab Grown|IGI

6.51ct D VVS1 Heart Lab Grown Diamond

VG • D/VVS1 • IGI LG702549105

Shape and cutting style on the report: Heart modified brilliant

Certificate IGI LG702549105

Diamond specifications and retailer prices

From $11,644 NZD
£5,167 GBP
As of November 2, 2026
Save $9,144 NZD (44%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $32,030 NZD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 6.51ct lab-grown heart diamond

This 6.51ct lab-grown heart sits in the over five carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG702549105 or 702549105. Listed at 5 retailers as of October 31, 2026, with a 79% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

6.51
Carat
D
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.1°
Pavilion angle33.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG702549105
Dimensions10.81 × 11.72 × 7.17 mm
L/W Ratio1.08
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.81 mm11.72 mm6.51 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG702549105
Side View
Table 65.0%Crown 39.1°Girdle: VTK-ETKPavilion 33.3°Culet: NoneDepth 61.2%

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: $11,644 NZD|Low: $11,547 NZD|High: $32,030 NZD|Avg: $19,448 NZD|+0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Taylor and Hart
November 2, 2026
Retailer 1$11,644 NZD
Retailer 3$13,902 NZD
Retailer 2$18,599 NZD
Retailer 4$20,788 NZD
Taylor and Hart$32,030 NZD

31 data points across 5 retailers

5 retailers$11,644 NZD to $20,788 NZD

B+
Cheapest Retailer
-
$11,644 NZD
£5,167 GBP
B
Retailer 2
-
$13,902 NZD
$7,835 USD
View
B
Retailer 3
-
$18,599 NZD
£8,254 GBP
View
B
Retailer 4
-
$20,788 NZD
$11,716 USD
View
Most Expensive
Taylor and Hart
SWHZBHO · Oct 31
$32,030 NZD
$18,052 USD
View
Price under review
4 more retailers have this diamond
Prices start from $11,644 NZDSave up to $9,144 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+
6.51ct Heart
$11,644 NZD