Cushion|Lab Grown|IGI

1.65ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG825660149

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG825660149

Diamond specifications and retailer prices

From $640 USD

As of October 30, 2026

Save $3,540 USD (85%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: $4,180 USD at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 1.65ct lab-grown cushion diamond

This 1.65ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825660149 or 825660149. Listed at 16 retailers as of October 29, 2026, with prices from $640 to $4,180, a $3,540 spread on the same certified stone. Brilliant Earth lists it at $4,180. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.65

Carat

Color

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.4°

Pavilion angle38.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG825660149

Dimensions8.96 × 5.79 × 4.09 mm

L/W Ratio1.55

Girdle conditionFaceted

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 LG825660149

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30

Current: $4,180 USD|Low: $640 USD|High: $4,320 USD|Avg: $1,933 USD|-3.2%

Brilliant Earth

Retailer 2

Retailer 3

Retailer 4

Retailer 5

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Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

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Retailer 15

Retailer 16

October 30, 2026

Retailer 15$640 USD

Retailer 8$756 USD

Retailer 12$805 USD

Retailer 3$1,077 USD

Retailer 2$1,091 USD

Retailer 9$1,131 USD

Retailer 11$1,202 USD

Retailer 13$1,281 USD

Retailer 5$1,574 USD

Retailer 16$2,042 USD

Retailer 4$2,241 USD

Retailer 14$2,266 USD

Retailer 6$2,332 USD

Retailer 7$3,050 USD

Retailer 10$3,052 USD

Brilliant Earth$4,180 USD

31 data points across 16 retailers

16 retailers$640 USD to $4,180 USD

Cheapest Retailer

$640 USD

Final sale: no returns

Retailer 2

$756 USD

View

Price last confirmed 13 days ago

Retailer 3

$805 USD

View

Retailer 4

$1,077 USD

View

Retailer 5

$1,091 USD

£859 GBP

View

Retailer 6

$1,131 USD

€1,077 EUR

View

Retailer 7

$1,202 USD

ZAR 19,413 ZAR

View

Retailer 8

$1,281 USD

View

Retailer 9

$1,574 USD

View

B+

Retailer 10

$2,042 USD

£1,608 GBP

View

B+

Retailer 11

$2,241 USD

View

B+

Retailer 12

$2,266 USD

View

B+

Retailer 13

$2,332 USD

SGD 3,151 SGD

View

Retailer 14

$3,050 USD

View

Price last confirmed 9 days ago

B+

Retailer 15

$3,052 USD

£2,403 GBP

View

Most Expensive

Brilliant Earth

21434379A · Oct 29

$4,180 USD

View

15 more retailers have this diamond

Prices start from $640 USDSave up to $3,540 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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