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 $5,478 CAD

£3,088 GBP

As of November 1, 2026

Save $19,652 CAD (78%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: $25,130 CAD 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 $5,478 to $25,130, a $19,652 spread on the same certified stone. Brilliant Earth lists it at $25,130. 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

Color

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: $25,130 CAD|Low: $5,476 CAD|High: $26,862 CAD|Avg: $12,480 CAD|-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 2$5,478 CAD

Retailer 3$6,585 CAD

Retailer 14$6,821 CAD

Retailer 5$7,204 CAD

Retailer 8$7,948 CAD

Retailer 12$8,187 CAD

Retailer 9$10,557 CAD

Retailer 13$10,559 CAD

Retailer 7$11,043 CAD

Retailer 11$12,883 CAD

Retailer 10$16,606 CAD

Retailer 4$18,949 CAD

Retailer 6$24,273 CAD

Brilliant Earth$25,130 CAD

36 data points across 14 retailers

14 retailers$5,478 CAD to $25,130 CAD

Cheapest Retailer

$5,478 CAD

£3,088 GBP

Retailer 2

$6,585 CAD

$4,714 USD

View

Final sale: no returns

Retailer 3

$6,821 CAD

$4,883 USD

View

Price last confirmed 19 days ago

Retailer 4

$7,204 CAD

$5,157 USD

View

Retailer 5

$7,948 CAD

$5,690 USD

View

Retailer 6

$8,187 CAD

$5,861 USD

View

Retailer 7

$10,557 CAD

ZAR 122,097 ZAR

View

Retailer 8

$10,559 CAD

$7,559 USD

View

Price last confirmed 11 days ago

Retailer 9

$11,043 CAD

€7,529 EUR

View

Retailer 10

$12,883 CAD

A$14,189 AUD

View

Price last confirmed 9 days ago

B+

Retailer 11

$16,606 CAD

$11,888 USD

View

Retailer 12

$18,949 CAD

$13,565 USD

View

Retailer 13

$24,273 CAD

$17,376 USD

View

Most Expensive

Brilliant Earth

20602619A · Oct 31

$25,130 CAD

$17,990 USD

View

13 more retailers have this diamond

Prices start from $5,478 CADSave up to $19,652 CAD

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

$5,478 CAD