CaratHunter
Plans
Cushion|Lab Grown|IGI

6.51ct D VVS2 Cushion Lab Grown Diamond

ID • D/VVS2 • IGI LG791660765

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG791660765

Diamond specifications and retailer prices

From $3,908 NZD
$2,199 USD
As of November 1, 2026
Save $13,989 NZD (78%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $24,265 NZD at Queensmith · As of October 9, 2026
View at Queensmith

About this 6.51ct lab-grown cushion diamond

This 6.51ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG791660765 or 791660765. Listed at 18 retailers as of November 1, 2026, with a 358% 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
D
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG791660765
Dimensions11.78 × 9.97 × 6.87 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.78 mm9.97 mm6.51 ctD / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG791660765
Side View
Table 66.0%Crown 32.5°Girdle: MED-THKPavilion 39°Culet: NoneDepth 68.9%

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: $6,285 NZD|Low: $3,908 NZD|High: $22,181 NZD|Avg: $8,343 NZD|-6.7%
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
Retailer 16
Retailer 17
November 2, 2026
Retailer 3$3,908 NZD
Retailer 17$4,049 NZD
Retailer 10$4,190 NZD
Retailer 2$4,345 NZD
Retailer 6$4,536 NZD
Retailer 11$5,568 NZD
Retailer 15$5,785 NZD
Retailer 1$6,285 NZD
Retailer 13$7,501 NZD
Retailer 8$7,692 NZD
Retailer 14$7,834 NZD
Retailer 7$8,638 NZD
Retailer 5$10,909 NZD
Retailer 4$11,560 NZD
Retailer 12$11,561 NZD
Retailer 9$14,171 NZD
Retailer 16$17,897 NZD

34 data points across 17 retailers

18 retailers$3,908 NZD to $17,897 NZD

A
Cheapest Retailer
-
$3,908 NZD
$2,199 USD
Final sale: no returns
Retailer 2
-
$4,049 NZD
$2,278 USD
View
Price last confirmed 22 days ago
A
Retailer 3
-
$4,190 NZD
£1,856 GBP
View
A
Retailer 4
-
$4,345 NZD
$2,445 USD
View
A
Retailer 5
-
$4,536 NZD
$2,552 USD
View
A
Retailer 6
-
$5,568 NZD
£2,467 GBP
View
A
Retailer 7
-
$5,785 NZD
$3,255 USD
View
A
Retailer 8
-
$6,285 NZD
€3,368 EUR
View
B+
Retailer 9
-
$7,501 NZD
A$6,493 AUD
View
B+
Retailer 10
-
$7,692 NZD
£3,408 GBP
View
B+
Retailer 11
-
$7,834 NZD
ZAR 71,207 ZAR
View
B+
Retailer 12
-
$8,638 NZD
$4,860 USD
View
B+
Retailer 13
-
$10,909 NZD
$6,138 USD
View
B+
Retailer 14
-
$11,560 NZD
$6,504 USD
View
B+
Retailer 15
-
$11,561 NZD
£5,122 GBP
View
B
Retailer 16
-
$14,171 NZD
$7,973 USD
View
B
Retailer 17
-
$17,897 NZD
$10,070 USD
View
Most Expensive
Queensmith
LG791660765 · Oct 9
$24,265 NZD
£10,750 GBP
View
Price last confirmed 24 days ago
17 more retailers have this diamond
Prices start from $3,908 NZDSave up to $13,989 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 Cushion
$3,908 NZD