Cushion|Lab Grown|IGI

1.71ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG836612118

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836612118

Diamond specifications and retailer prices

From $663 USD

As of October 30, 2026

Save $4,277 USD (87%) vs most expensive(unlock to see where)

18 retailers carry this diamond

Most expensive: $4,940 USD at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 1.71ct lab-grown cushion diamond

This 1.71ct 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 LG836612118 or 836612118. Listed at 18 retailers as of October 29, 2026, with prices from $663 to $4,940, a $4,277 spread on the same certified stone. Brilliant Earth lists it at $4,940. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71

Carat

Color

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle32.6°

Pavilion angle36.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG836612118

Dimensions9.04 × 6.01 × 3.87 mm

L/W Ratio1.50

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 LG836612118

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: $4,940 USD|Low: $663 USD|High: $4,960 USD|Avg: $2,026 USD|-0.4%

Brilliant Earth

Retailer 2

Retailer 3

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Retailer 7

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Retailer 11

Retailer 12

Retailer 13

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Retailer 17

Retailer 18

October 30, 2026

Retailer 3$663 USD

Retailer 9$732 USD

Retailer 2$747 USD

Retailer 14$835 USD

Retailer 4$1,113 USD

Retailer 11$1,130 USD

Retailer 12$1,170 USD

Retailer 13$1,243 USD

Retailer 16$1,367 USD

Retailer 6$1,632 USD

Retailer 18$2,103 USD

Retailer 5$2,302 USD

Retailer 17$2,342 USD

Retailer 7$2,413 USD

Retailer 8$2,905 USD

Retailer 15$3,145 USD

Retailer 10$3,156 USD

Brilliant Earth$4,940 USD

27 data points across 18 retailers

18 retailers$663 USD to $4,940 USD

Cheapest Retailer

$663 USD

Final sale: no returns

Retailer 2

$732 USD

View

Price last confirmed 14 days ago

Retailer 3

$747 USD

£588 GBP

View

Retailer 4

$835 USD

View

Retailer 5

$1,113 USD

View

Retailer 6

$1,130 USD

£890 GBP

View

Retailer 7

$1,170 USD

€1,114 EUR

View

Retailer 8

$1,243 USD

ZAR 20,084 ZAR

View

Retailer 9

$1,367 USD

View

Retailer 10

$1,632 USD

View

B+

Retailer 11

$2,103 USD

£1,656 GBP

View

B+

Retailer 12

$2,302 USD

View

B+

Retailer 13

$2,342 USD

View

B+

Retailer 14

$2,413 USD

SGD 3,261 SGD

View

Retailer 15

$2,905 USD

View

Price last confirmed 9 days ago

B+

Retailer 16

$3,145 USD

£2,476 GBP

View

B+

Retailer 17

$3,156 USD

View

Most Expensive

Brilliant Earth

21612419A · Oct 29

$4,940 USD

View

17 more retailers have this diamond

Prices start from $663 USDSave up to $4,277 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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1.71ct Cushion

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