Heart|Lab Grown|IGI

1.23ct E VS1 Heart Lab Grown Diamond

ID • E/VS1 • IGI LG826667983

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG826667983

Diamond specifications and retailer prices

From £140 GBP

$188 USD

As of October 30, 2026

Save £722 GBP (84%) vs most expensive(unlock to see where)

18 retailers carry this diamond

Most expensive: £862 GBP at Reve Diamonds · As of October 30, 2026

View at Reve Diamonds

About this 1.23ct lab-grown heart diamond

This 1.23ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG826667983 or 826667983. Listed at 18 retailers as of October 30, 2026, with prices from £140 to £862, a £722 spread on the same certified stone. Reve Diamonds lists it at £862. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle37.2°

Pavilion angle38°

OriginLab Grown

Grading LabIGI

CertificateIGI LG826667983

Dimensions7.55 × 6.46 × 4.34 mm

L/W Ratio1.17

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 LG826667983

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 30

Current: £537 GBP|Low: £140 GBP|High: £862 GBP|Avg: £452 GBP|-25.0%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

Retailer 14

Reve Diamonds

October 30, 2026

Retailer 7£140 GBP

Retailer 12£174 GBP

Retailer 8£180 GBP

Retailer 13£295 GBP

Retailer 9£305 GBP

Retailer 10£316 GBP

Retailer 6£332 GBP

Retailer 5£377 GBP

Retailer 14£420 GBP

Retailer 4£445 GBP

Retailer 1£537 GBP

Retailer 3£544 GBP

Retailer 11£600 GBP

Retailer 2£806 GBP

Reve Diamonds£862 GBP

45 data points across 15 retailers

18 retailers£140 GBP to £862 GBP

Cheapest Retailer

£140 GBP

$188 USD

Retailer 2

£161 GBP

$216 USD

View

Retailer 3

£172 GBP

$231 USD

View

Retailer 4

£174 GBP

$233 USD

View

Retailer 5

£180 GBP

$241 USD

View

Final sale: no returns

Retailer 6

£295 GBP

ZAR 6,394 ZAR

View

Retailer 7

£305 GBP

$408 USD

View

Retailer 8

£316 GBP

View

B+

Retailer 9

£332 GBP

$445 USD

View

B+

Retailer 10

£377 GBP

A$778 AUD

View

B+

Retailer 11

£420 GBP

A$865 AUD

View

B+

Retailer 12

£445 GBP

$596 USD

View

B+

Retailer 13

£537 GBP

$720 USD

View

B+

Retailer 14

£544 GBP

A$1,122 AUD

View

Retailer 15

£553 GBP

$741 USD

View

Retailer 16

£600 GBP

$803 USD

View

Retailer 17

£806 GBP

View

Most Expensive

Reve Diamonds

C430804B2 · Oct 30

£862 GBP

$1,155 USD

View

17 more retailers have this diamond

Prices start from £140 GBPSave up to £722 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.

Where to buy this spec

See every retailer carrying 1.23ct E VS1 heart lab-grown

Ranked by inventory count, with return policy, certs, and trust signals.

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