Cushion|Lab Grown|IGI

15.65ct H VS1 Cushion Lab Grown Diamond

ID • H/VS1 • IGI LG627413256

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG627413256

Diamond specifications and retailer prices

From $6,958 NZD

£3,088 GBP

As of November 1, 2026

Save $24,961 NZD (78%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: $31,920 NZD at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 15.65ct lab-grown cushion diamond

This 15.65ct lab-grown cushion sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG627413256 or 627413256. Listed at 14 retailers as of October 31, 2026, with prices from $6,958 to $31,920, a $24,961 spread on the same certified stone. Brilliant Earth lists it at $31,920. 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

15.65

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle39.7°

Pavilion angle31.2°

OriginLab Grown

Grading LabIGI

CertificateIGI LG627413256

Dimensions14.80 × 14.01 × 8.74 mm

L/W Ratio1.06

Girdle conditionFaceted

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG627413256

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: $31,920 NZD|Low: $6,956 NZD|High: $34,120 NZD|Avg: $15,852 NZD|-3.0%

Brilliant Earth

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

November 1, 2026

Retailer 7$6,958 NZD

Retailer 3$8,364 NZD

Retailer 14$8,664 NZD

Retailer 5$9,150 NZD

Retailer 9$10,096 NZD

Retailer 12$10,399 NZD

Retailer 10$13,410 NZD

Retailer 13$13,412 NZD

Retailer 8$14,027 NZD

Retailer 2$16,336 NZD

Retailer 11$21,093 NZD

Retailer 4$24,068 NZD

Retailer 6$30,830 NZD

Brilliant Earth$31,920 NZD

36 data points across 14 retailers

14 retailers$6,958 NZD to $31,920 NZD

Cheapest Retailer

$6,958 NZD

£3,088 GBP

Retailer 2

$8,364 NZD

$4,714 USD

View

Final sale: no returns

Retailer 3

$8,664 NZD

$4,883 USD

View

Price last confirmed 20 days ago

Retailer 4

$9,150 NZD

$5,157 USD

View

Retailer 5

$10,096 NZD

$5,690 USD

View

Retailer 6

$10,399 NZD

$5,861 USD

View

Retailer 7

$13,410 NZD

ZAR 122,097 ZAR

View

B+

Retailer 8

$13,412 NZD

$7,559 USD

View

Retailer 9

$14,027 NZD

€7,529 EUR

View

B+

Retailer 10

$16,336 NZD

A$14,165 AUD

View

B+

Retailer 11

$21,093 NZD

$11,888 USD

View

Retailer 12

$24,068 NZD

$13,565 USD

View

Retailer 13

$30,830 NZD

$17,376 USD

View

Most Expensive

Brilliant Earth

20602619A · Oct 31

$31,920 NZD

$17,990 USD

View

13 more retailers have this diamond

Prices start from $6,958 NZDSave up to $24,961 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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15.65ct Cushion

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