Heart|Lab Grown|IGI

3.88ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG831604055

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831604055

Diamond specifications and retailer prices

From £3,123 GBP

$4,185 USD

As of October 30, 2026

Save £9,765 GBP (76%) vs most expensive(unlock to see where)

20 retailers carry this diamond

Most expensive: £12,889 GBP at Taylor and Hart · As of October 30, 2026

View at Taylor and Hart

About this 3.88ct lab-grown heart diamond

This 3.88ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG831604055 or 831604055. Listed at 20 retailers as of October 30, 2026, with prices from £3,123 to £12,889, a £9,765 spread on the same certified stone. Taylor and Hart lists it at £12,889. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.88

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle32.8°

Pavilion angle39.8°

OriginLab Grown

Grading LabIGI

CertificateIGI LG831604055

Dimensions9.92 × 11.12 × 6.25 mm

L/W Ratio1.12

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 LG831604055

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: £12,882 GBP|Low: £3,497 GBP|High: £13,882 GBP|Avg: £6,778 GBP|-5.2%

Retailer 1

Retailer 2

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Taylor and Hart

October 31, 2026

Retailer 9£3,497 GBP

Retailer 4£3,623 GBP

Retailer 5£3,623 GBP

Retailer 7£3,661 GBP

Retailer 8£4,020 GBP

Retailer 12£4,060 GBP

Retailer 3£4,173 GBP

Retailer 15£4,324 GBP

Retailer 10£4,527 GBP

Retailer 17£4,687 GBP

Retailer 2£5,359 GBP

Retailer 13£6,471 GBP

Retailer 18£7,542 GBP

Retailer 16£8,412 GBP

Retailer 14£9,717 GBP

Retailer 6£10,556 GBP

Retailer 11£11,759 GBP

Retailer 1£12,882 GBP

Taylor and Hart£12,889 GBP

32 data points across 19 retailers

20 retailers£3,123 GBP to £12,889 GBP

Cheapest Retailer

£3,123 GBP

$4,185 USD

B+

Retailer 2

£3,497 GBP

$4,686 USD

View

Final sale: no returns

B+

Retailer 3

£3,623 GBP

$4,855 USD

View

Retailer 4

£3,623 GBP

$4,855 USD

View

Price last confirmed 14 days ago

B+

Retailer 5

£3,661 GBP

$4,905 USD

View

B+

Retailer 6

£4,020 GBP

$5,386 USD

View

B+

Retailer 7

£4,060 GBP

HK$42,500 HKD

View

B+

Retailer 8

£4,173 GBP

$5,592 USD

View

B+

Retailer 9

£4,324 GBP

View

B+

Retailer 10

£4,527 GBP

$6,066 USD

View

B+

Retailer 11

£4,687 GBP

View

B+

Retailer 12

£5,359 GBP

$7,180 USD

View

B+

Retailer 13

£6,471 GBP

$8,670 USD

View

B+

Retailer 14

£7,542 GBP

View

B+

Retailer 15

£8,412 GBP

ZAR 182,082 ZAR

View

Retailer 16

£9,717 GBP

$13,020 USD

View

Retailer 17

£10,556 GBP

$14,144 USD

View

Retailer 18

£11,759 GBP

SGD 21,292 SGD

View

Retailer 19

£12,882 GBP

$17,260 USD

View

Most Expensive

Taylor and Hart

53Y180P · Oct 30

£12,889 GBP

$17,270 USD

View

19 more retailers have this diamond

Prices start from £3,123 GBPSave up to £9,765 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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