Cushion|Lab Grown|IGI

6.51ct F VS1 Cushion Lab Grown Diamond

VG • F/VS1 • IGI LG841638735

Shape and cutting style on the report: Square cushion mixed cut

Certificate IGI LG841638735

Diamond specifications and retailer prices

From $3,924 NZD

$2,208 USD

As of October 31, 2026

Save $10,715 NZD (73%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: $14,639 NZD at Taylor and Hart · As of October 30, 2026

View at Taylor and Hart

About this 6.51ct lab-grown cushion diamond

This 6.51ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG841638735 or 841638735. Listed at 14 retailers as of October 30, 2026, with prices from $3,924 to $14,639, a $10,715 spread on the same certified stone. Taylor and Hart lists it at $14,639. 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

Colour

VS1

Clarity

Very Good

Cut

Specifications

CutVery Good

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle37.9°

Pavilion angle38.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG841638735

Dimensions10.36 × 9.87 × 6.07 mm

L/W Ratio1.05

Culet sizeLarge

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

CutVery Good

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG841638735

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: Oct 31

Current: $5,700 NZD|Low: $3,606 NZD|High: $14,639 NZD|Avg: $7,958 NZD|+6.2%

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

Taylor and Hart

November 3, 2026

Retailer 3$3,606 NZD

Retailer 2$3,924 NZD

Retailer 8$4,038 NZD

Retailer 7$4,184 NZD

Retailer 12$4,479 NZD

Retailer 4$5,698 NZD

Retailer 1$5,700 NZD

Retailer 9$5,751 NZD

Retailer 5$6,548 NZD

Retailer 11$7,936 NZD

Retailer 13$11,273 NZD

Retailer 10$11,916 NZD

Retailer 6$11,949 NZD

Taylor and Hart$14,639 NZD

12 data points across 14 retailers

14 retailers$3,924 NZD to $14,639 NZD

Retailer 1

$3,606 NZD

$2,029 USD

Price last confirmed 7 days ago

Retailer 2

$3,924 NZD

$2,208 USD

View

Retailer 3

$4,038 NZD

$2,272 USD

View

Final sale: no returns

B+

Retailer 4

$4,184 NZD

$2,354 USD

View

B+

Retailer 5

$4,479 NZD

$2,520 USD

View

B+

Retailer 6

$5,698 NZD

$3,206 USD

View

B+

Retailer 7

$5,700 NZD

£2,525 GBP

View

B+

Retailer 8

$5,751 NZD

$3,236 USD

View

Retailer 9

$6,548 NZD

$3,684 USD

View

Price last confirmed 7 days ago

Retailer 10

$7,936 NZD

£3,516 GBP

View

Retailer 11

$11,273 NZD

$6,343 USD

View

Retailer 12

$11,916 NZD

$6,704 USD

View

Retailer 13

$11,949 NZD

£5,294 GBP

View

Most Expensive

Taylor and Hart

DOQJURW · Oct 30

$14,639 NZD

$8,237 USD

View

13 more retailers have this diamond

Prices start from $3,924 NZDSave up to $10,715 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.

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