Cushion|Lab Grown|IGI

3.55ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG688511564

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG688511564

Diamond specifications and retailer prices

From $563 USD

HK$4,400 HKD

As of October 30, 2026

Save $1,433 USD (72%) vs most expensive(unlock to see where)

12 retailers carry this diamond

Most expensive: $1,996 USD at MOH London · As of October 29, 2026

View at MOH London

About this 3.55ct lab-grown cushion diamond

This 3.55ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG688511564 or 688511564. Listed at 12 retailers as of October 29, 2026, with prices from $563 to $1,996, a $1,433 spread on the same certified stone. MOH London lists it at $1,996. 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

3.55

Carat

Color

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.1°

Pavilion angle40.2°

OriginLab Grown

Grading LabIGI

CertificateIGI LG688511564

Dimensions8.98 × 8.81 × 5.86 mm

L/W Ratio1.02

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 LG688511564

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 30

Current: $1,996 USD|Low: $563 USD|High: $5,690 USD|Avg: $1,858 USD

MOH London

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

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Retailer 15

Retailer 16

October 31, 2026

Retailer 13$563 USD

Retailer 9$568 USD

Retailer 10$655 USD

Retailer 3$804 USD

Retailer 12$836 USD

Retailer 2$836 USD

Retailer 11$1,070 USD

Retailer 5$1,086 USD

Retailer 15$1,103 USD

Retailer 14$1,214 USD

Retailer 4$1,669 USD

Retailer 16$1,902 USD

MOH London$1,996 USD

Retailer 8$3,429 USD

Retailer 6$4,153 USD

Retailer 7$5,690 USD

5 data points across 16 retailers

12 retailers$563 USD to $1,996 USD

Cheapest Retailer

$563 USD

HK$4,400 HKD

Retailer 2

$568 USD

£447 GBP

View

Retailer 3

$655 USD

View

B+

Retailer 4

$804 USD

View

Retailer 5

$836 USD

View

Retailer 6

$836 USD

£658 GBP

View

Retailer 7

$1,070 USD

A$1,646 AUD

View

Retailer 8

$1,103 USD

ZAR 17,827 ZAR

View

Retailer 9

$1,214 USD

View

B+

Retailer 10

$1,669 USD

View

B+

Retailer 11

$1,902 USD

View

Most Expensive

B+

MOH London

LG688511564 · Oct 29

$1,996 USD

£1,572 GBP

View

11 more retailers have this diamond

Prices start from $563 USDSave up to $1,433 USD

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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3.55ct Cushion

$563 USD