Heart|Lab Grown|IGI

1.57ct E VVS1 Heart Lab Grown Diamond

ID • E/VVS1 • IGI LG816615966

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG816615966

Diamond specifications and retailer prices

From £191 GBP

$254 USD

As of October 27, 2026

Save £1,086 GBP (85%) vs most expensive(unlock to see where)

20 retailers carry this diamond

Most expensive: £1,277 GBP at Brilliant Earth · As of October 28, 2026

View at Brilliant Earth

About this 1.57ct lab-grown heart diamond

This 1.57ct lab-grown heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG816615966 or 816615966. Listed at 20 retailers as of October 27, 2026, with prices from £191 to £1,277, a £1,086 spread on the same certified stone. Brilliant Earth lists it at £1,277. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57

Carat

Colour

VVS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.8°

Pavilion angle40.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG816615966

Dimensions7.78 × 7.17 × 4.81 mm

L/W Ratio1.09

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 LG816615966

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 27

Current: £1,277 GBP|Low: £186 GBP|High: £1,314 GBP|Avg: £575 GBP|-2.9%

Brilliant Earth

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October 29, 2026

Retailer 11£191 GBP

Retailer 18£216 GBP

Retailer 10£222 GBP

Retailer 6£237 GBP

Retailer 14£240 GBP

Retailer 16£360 GBP

Retailer 15£387 GBP

Retailer 9£395 GBP

Retailer 4£407 GBP

Retailer 13£457 GBP

Retailer 12£500 GBP

Retailer 5£552 GBP

Retailer 8£595 GBP

Retailer 17£751 GBP

Retailer 3£772 GBP

Retailer 20£781 GBP

Retailer 2£811 GBP

Retailer 7£843 GBP

Retailer 19£968 GBP

Brilliant Earth£1,277 GBP

31 data points across 20 retailers

20 retailers£191 GBP to £1,277 GBP

Cheapest Retailer

£191 GBP

$254 USD

Retailer 2

£216 GBP

$288 USD

View

Final sale: no returns

Retailer 3

£222 GBP

$295 USD

View

Retailer 4

£237 GBP

$315 USD

View

Retailer 5

£240 GBP

$320 USD

View

Retailer 6

£360 GBP

$480 USD

View

Retailer 7

£387 GBP

€491 EUR

View

Retailer 8

£395 GBP

$526 USD

View

Retailer 9

£407 GBP

ZAR 8,753 ZAR

View

B+

Retailer 10

£457 GBP

View

B+

Retailer 11

£500 GBP

$666 USD

View

B+

Retailer 12

£552 GBP

A$1,131 AUD

View

B+

Retailer 13

£595 GBP

$793 USD

View

B+

Retailer 14

£751 GBP

$1,000 USD

View

B+

Retailer 15

£772 GBP

$1,028 USD

View

B+

Retailer 16

£781 GBP

SGD 1,406 SGD

View

B+

Retailer 17

£811 GBP

$1,079 USD

View

B+

Retailer 18

£843 GBP

$1,123 USD

View

B+

Retailer 19

£968 GBP

View

Most Expensive

Brilliant Earth

21421577A · Oct 28

£1,277 GBP

$1,700 USD

View

19 more retailers have this diamond

Prices start from £191 GBPSave up to £1,086 GBP

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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1.57ct Heart

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