Oval|Lab Grown|IGI

1.56ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG681578702

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG681578702

Diamond specifications and retailer prices

From £216 GBP

$289 USD

As of October 29, 2026

Save £1,979 GBP (90%) vs most expensive(unlock to see where)

25 retailers carry this diamond

Most expensive: £2,194 GBP at Brilliant Earth · As of October 30, 2026

View at Brilliant Earth

About this 1.56ct lab-grown oval diamond

This 1.56ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG681578702 or 681578702. Listed at 25 retailers as of October 29, 2026, with prices from £216 to £2,194, a £1,979 spread on the same certified stone. Brilliant Earth lists it at £2,194. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle37°

Pavilion angle40.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG681578702

Dimensions9.19 × 6.55 × 4.14 mm

L/W Ratio1.40

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 LG681578702

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 29

Current: £2,194 GBP|Low: £207 GBP|High: £3,717 GBP|Avg: £805 GBP|-41.0%

Brilliant Earth

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October 30, 2026

Retailer 24£216 GBP

Retailer 2£240 GBP

Retailer 23£250 GBP

Retailer 4£267 GBP

Retailer 14£315 GBP

Retailer 7£379 GBP

Retailer 21£381 GBP

Retailer 22£439 GBP

Retailer 20£459 GBP

Retailer 11£463 GBP

Retailer 13£472 GBP

Retailer 12£599 GBP

Retailer 19£621 GBP

Retailer 8£795 GBP

Retailer 5£821 GBP

Retailer 3£859 GBP

Retailer 15£895 GBP

Retailer 16£902 GBP

Retailer 10£1,028 GBP

Retailer 18£1,077 GBP

Retailer 9£1,102 GBP

Retailer 17£1,180 GBP

Retailer 6£1,451 GBP

Brilliant Earth£2,194 GBP

31 data points across 24 retailers

25 retailers£216 GBP to £2,194 GBP

Cheapest Retailer

£216 GBP

$289 USD

Retailer 2

£240 GBP

$322 USD

View

Final sale: no returns

Retailer 3

£250 GBP

$335 USD

View

Retailer 4

£267 GBP

$358 USD

View

Retailer 5

£315 GBP

HK$3,300 HKD

View

Retailer 6

£379 GBP

$508 USD

View

Retailer 7

£381 GBP

$510 USD

View

Retailer 8

£439 GBP

€560 EUR

View

Retailer 9

£459 GBP

ZAR 9,936 ZAR

View

Retailer 10

£463 GBP

$620 USD

View

Retailer 11

£472 GBP

View

Retailer 12

£599 GBP

$803 USD

View

Retailer 13

£621 GBP

A$1,281 AUD

View

B+

Retailer 14

£795 GBP

$1,065 USD

View

B+

Retailer 15

£821 GBP

$1,100 USD

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B+

Retailer 16

£859 GBP

$1,151 USD

View

B+

Retailer 17

£895 GBP

$1,200 USD

View

B+

Retailer 18

£902 GBP

SGD 1,634 SGD

View

B+

Retailer 19

£1,028 GBP

$1,377 USD

View

B+

Retailer 20

£1,077 GBP

View

B+

Retailer 21

£1,102 GBP

$1,477 USD

View

B+

Retailer 22

£1,180 GBP

$1,581 USD

View

Retailer 23

£1,451 GBP

A$2,992 AUD

View

Price last confirmed 22 days ago

Retailer 24

£1,814 GBP

$2,430 USD

View

Price last confirmed 32 days ago

Most Expensive

Brilliant Earth

13772889A · Oct 30

£2,194 GBP

$2,940 USD

View

24 more retailers have this diamond

Prices start from £216 GBPSave up to £1,979 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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