Oval|Lab Grown|IGI

3.38ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG683588774

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG683588774

Diamond specifications and retailer prices

From £1,148 GBP

$1,529 USD

As of October 29, 2026

Save £10,694 GBP (90%) vs most expensive(unlock to see where)

24 retailers carry this diamond

Most expensive: £11,842 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 3.38ct lab-grown oval diamond

This 3.38ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG683588774 or 683588774. Listed at 24 retailers as of October 29, 2026, with prices from £1,148 to £11,842, a £10,694 spread on the same certified stone. Brilliant Earth lists it at £11,842. 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

3.38

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.8°

Pavilion angle41°

OriginLab Grown

Grading LabIGI

CertificateIGI LG683588774

Dimensions11.96 × 8.52 × 5.32 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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG683588774

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 29

Current: £11,842 GBP|Low: £1,148 GBP|High: £11,842 GBP|Avg: £3,190 GBP

Brilliant Earth

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

Retailer 15

Retailer 16

October 30, 2026

Retailer 5£1,148 GBP

Retailer 6£1,189 GBP

Retailer 13£1,318 GBP

Retailer 4£1,424 GBP

Retailer 2£1,850 GBP

Retailer 15£1,879 GBP

Retailer 11£2,970 GBP

Retailer 9£3,049 GBP

Retailer 7£3,170 GBP

Retailer 14£3,206 GBP

Retailer 8£3,705 GBP

Retailer 10£3,770 GBP

Retailer 12£4,093 GBP

Retailer 16£4,503 GBP

Retailer 3£6,075 GBP

Brilliant Earth£11,842 GBP

42 data points across 16 retailers

24 retailers£1,148 GBP to £11,842 GBP

Retailer 1

£984 GBP

$1,311 USD

Price last confirmed 28 days ago

Retailer 2

£1,116 GBP

$1,486 USD

View

Price last confirmed 34 days ago

Retailer 3

£1,148 GBP

$1,529 USD

View

Final sale: no returns

Retailer 4

£1,189 GBP

$1,584 USD

View

Price last confirmed 27 days ago

Retailer 5

£1,318 GBP

$1,755 USD

View

Retailer 6

£1,424 GBP

$1,896 USD

View

Retailer 7

£1,850 GBP

View

Retailer 8

£1,879 GBP

$2,502 USD

View

Retailer 9

£2,079 GBP

$2,768 USD

View

Retailer 10

£2,217 GBP

$2,953 USD

View

Retailer 11

£2,462 GBP

$3,278 USD

View

Price last confirmed 22 days ago

Retailer 12

£2,970 GBP

A$6,085 AUD

View

Price last confirmed 7 days ago

B+

Retailer 13

£3,049 GBP

ZAR 65,595 ZAR

View

B+

Retailer 14

£3,170 GBP

View

B+

Retailer 15

£3,206 GBP

$4,269 USD

View

B+

Retailer 16

£3,649 GBP

$4,860 USD

View

B+

Retailer 17

£3,705 GBP

$4,935 USD

View

B+

Retailer 18

£3,770 GBP

View

Retailer 19

£4,093 GBP

$5,450 USD

View

Price last confirmed 11 days ago

Retailer 20

£4,503 GBP

$5,996 USD

View

Retailer 21

£4,641 GBP

$6,181 USD

View

Retailer 22

£6,075 GBP

$8,090 USD

View

Retailer 23

£7,059 GBP

$9,400 USD

View

Most Expensive

Brilliant Earth

18396216Y · Oct 29

£11,842 GBP

$15,770 USD

View

23 more retailers have this diamond

Prices start from £1,148 GBPSave up to £10,694 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.

Similar diamonds

3.38ct Oval

£1,148 GBP