Cushion|Lab Grown|IGI

3.57ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG681578434

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG681578434

Diamond specifications and retailer prices

From $4,043 NZD

HK$17,800 HKD

As of October 31, 2026

Save $9,070 NZD (69%) vs most expensive(unlock to see where)

19 retailers carry this diamond

Most expensive: $17,282 NZD at Do Amore Diamonds · As of October 23, 2026

View at Do Amore Diamonds

About this 3.57ct lab-grown cushion diamond

This 3.57ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG681578434 or 681578434. Listed at 19 retailers as of October 31, 2026, with a 224% 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

3.57

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle37°

Pavilion angle39.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG681578434

Dimensions8.94 × 8.92 × 5.90 mm

L/W Ratio1.00

Girdle conditionFaceted

Culet sizePointed

Cert comments

As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG681578434

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: $17,282 NZD|Low: $2,812 NZD|High: $20,813 NZD|Avg: $8,528 NZD|-11.3%

Do Amore Diamonds

Retailer 2

Retailer 3

Retailer 4

Retailer 5

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Retailer 11

Retailer 12

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Retailer 15

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Retailer 19

Retailer 20

October 30, 2026

Retailer 16$3,087 NZD

Retailer 14$3,231 NZD

Retailer 7$3,337 NZD

Retailer 8$4,043 NZD

Retailer 15$4,619 NZD

Retailer 5$4,840 NZD

Retailer 19$5,071 NZD

Retailer 20$6,001 NZD

Retailer 13$7,272 NZD

Retailer 17$7,383 NZD

Retailer 11$7,761 NZD

Retailer 9$8,361 NZD

Retailer 6$8,899 NZD

Retailer 3$9,230 NZD

Retailer 18$9,821 NZD

Retailer 12$11,345 NZD

Retailer 10$11,671 NZD

Retailer 2$13,112 NZD

Retailer 4$16,809 NZD

Do Amore Diamonds$17,282 NZD

31 data points across 20 retailers

19 retailers$4,043 NZD to $13,112 NZD

Retailer 1

$3,087 NZD

$1,740 USD

Price last confirmed 8 days ago

Retailer 2

$3,337 NZD

$1,881 USD

View

Price last confirmed 10 days ago

Retailer 3

$4,043 NZD

HK$17,800 HKD

View

Retailer 4

$4,619 NZD

£2,050 GBP

View

Price last confirmed 10 days ago

Retailer 5

$4,666 NZD

£2,071 GBP

View

Price last confirmed 16 days ago

Retailer 6

$4,840 NZD

$2,728 USD

View

Price last confirmed 13 days ago

Retailer 7

$6,001 NZD

$3,382 USD

View

Price last confirmed 8 days ago

Retailer 8

$7,272 NZD

A$6,305 AUD

View

Price last confirmed 9 days ago

Retailer 9

$7,383 NZD

ZAR 67,225 ZAR

View

Price last confirmed 12 days ago

Retailer 10

$7,761 NZD

£3,444 GBP

View

Price last confirmed 10 days ago

Retailer 11

$8,361 NZD

$4,712 USD

View

Price last confirmed 10 days ago

Retailer 12

$8,899 NZD

$5,015 USD

View

Price last confirmed 11 days ago

Retailer 13

$9,230 NZD

£4,096 GBP

View

Price last confirmed 10 days ago

Retailer 14

$9,821 NZD

$5,535 USD

View

Price last confirmed 10 days ago

Retailer 15

$11,345 NZD

$6,394 USD

View

Price last confirmed 10 days ago

Retailer 16

$11,671 NZD

SGD 8,889 SGD

View

Price last confirmed 11 days ago

B+

Retailer 17

$13,112 NZD

$7,390 USD

View

Retailer 18

$16,809 NZD

A$14,575 AUD

View

Price last confirmed 23 days ago

Most Expensive

Do Amore Diamonds

27-D7D5211D8 · Oct 23

$17,282 NZD

$9,740 USD

View

Price last confirmed 9 days ago

18 more retailers have this diamond

Prices start from $4,043 NZDSave up to $9,070 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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