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 $3,138 AUD

$2,199 USD

As of November 1, 2026

Save $11,231 AUD (78%) vs most expensive(unlock to see where)

18 retailers carry this diamond

Most expensive: $19,481 AUD 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

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

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG791660765

Side View

Caratlytics Score

How it works →

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: $5,046 AUD|Low: $3,138 AUD|High: $17,808 AUD|Avg: $6,698 AUD|-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$3,138 AUD

Retailer 17$3,250 AUD

Retailer 10$3,364 AUD

Retailer 2$3,489 AUD

Retailer 6$3,641 AUD

Retailer 11$4,471 AUD

Retailer 15$4,645 AUD

Retailer 1$5,046 AUD

Retailer 13$6,022 AUD

Retailer 8$6,176 AUD

Retailer 14$6,289 AUD

Retailer 7$6,935 AUD

Retailer 5$8,758 AUD

Retailer 4$9,281 AUD

Retailer 12$9,282 AUD

Retailer 9$11,377 AUD

Retailer 16$14,369 AUD

34 data points across 17 retailers

18 retailers$3,138 AUD to $14,369 AUD

Cheapest Retailer

$3,138 AUD

$2,199 USD

Final sale: no returns

Retailer 2

$3,250 AUD

$2,278 USD

View

Price last confirmed 22 days ago

Retailer 3

$3,364 AUD

£1,856 GBP

View

Retailer 4

$3,489 AUD

$2,445 USD

View

Retailer 5

$3,641 AUD

$2,552 USD

View

Retailer 6

$4,471 AUD

£2,467 GBP

View

Retailer 7

$4,645 AUD

$3,255 USD

View

Retailer 8

$5,046 AUD

€3,368 EUR

View

B+

Retailer 9

$6,022 AUD

View

B+

Retailer 10

$6,176 AUD

£3,408 GBP

View

B+

Retailer 11

$6,289 AUD

ZAR 71,207 ZAR

View

B+

Retailer 12

$6,935 AUD

$4,860 USD

View

B+

Retailer 13

$8,758 AUD

$6,138 USD

View

B+

Retailer 14

$9,281 AUD

$6,504 USD

View

B+

Retailer 15

$9,282 AUD

£5,122 GBP

View

Retailer 16

$11,377 AUD

$7,973 USD

View

Retailer 17

$14,369 AUD

$10,070 USD

View

Most Expensive

Queensmith

LG791660765 · Oct 9

$19,481 AUD

£10,750 GBP

View

Price last confirmed 24 days ago

17 more retailers have this diamond

Prices start from $3,138 AUDSave up to $11,231 AUD

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.

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6.51ct Cushion

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