Oval|Lab Grown|IGI

3.70ct E FL Oval Lab Grown Diamond

EX • E/FL • IGI LG800634350

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG800634350

Diamond specifications and retailer prices

From £1,413 GBP

$1,893 USD

As of October 31, 2026

Save £5,386 GBP (79%) vs most expensive(unlock to see where)

24 retailers carry this diamond

Most expensive: £6,799 GBP at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 3.7ct lab-grown oval diamond

This 3.7ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800634350 or 800634350. Listed at 24 retailers as of October 31, 2026, with prices from £1,413 to £6,799, a £5,386 spread on the same certified stone. Brilliant Earth lists it at £6,799. 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

3.70

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.7°

Pavilion angle40.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG800634350

Dimensions12.46 × 8.69 × 5.44 mm

L/W Ratio1.43

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG800634350

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 31

Current: £6,799 GBP|Low: £1,413 GBP|High: £10,867 GBP|Avg: £3,569 GBP|-37.4%

Brilliant Earth

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Retailer 22

November 1, 2026

Retailer 21£1,413 GBP

Retailer 19£1,455 GBP

Retailer 17£1,507 GBP

Retailer 13£1,667 GBP

Retailer 14£1,694 GBP

Retailer 8£1,739 GBP

Retailer 22£1,791 GBP

Retailer 15£1,965 GBP

Retailer 2£2,118 GBP

Retailer 5£2,308 GBP

Retailer 20£2,824 GBP

Retailer 12£2,885 GBP

Retailer 18£3,112 GBP

Retailer 3£3,116 GBP

Retailer 16£3,537 GBP

Retailer 6£4,060 GBP

Retailer 10£4,564 GBP

Retailer 4£5,031 GBP

Retailer 7£5,284 GBP

Retailer 11£5,361 GBP

Retailer 9£5,502 GBP

Brilliant Earth£6,799 GBP

35 data points across 22 retailers

24 retailers£1,413 GBP to £6,799 GBP

Cheapest Retailer

£1,413 GBP

$1,893 USD

Retailer 2

£1,455 GBP

$1,949 USD

View

Final sale: no returns

Retailer 3

£1,507 GBP

$2,019 USD

View

Retailer 4

£1,667 GBP

$2,234 USD

View

Retailer 5

£1,694 GBP

$2,270 USD

View

Retailer 6

£1,739 GBP

HK$18,200 HKD

View

Retailer 7

£1,791 GBP

$2,400 USD

View

Retailer 8

£1,965 GBP

$2,633 USD

View

Price last confirmed 21 days ago

Retailer 9

£2,118 GBP

View

Retailer 10

£2,308 GBP

$3,092 USD

View

B+

Retailer 11

£2,824 GBP

$3,784 USD

View

B+

Retailer 12

£2,885 GBP

$3,865 USD

View

B+

Retailer 13

£3,112 GBP

€3,971 EUR

View

B+

Retailer 14

£3,116 GBP

View

B+

Retailer 15

£3,537 GBP

$4,739 USD

View

B+

Retailer 16

£3,879 GBP

$5,197 USD

View

B+

Retailer 17

£4,060 GBP

$5,440 USD

View

B+

Retailer 18

£4,564 GBP

ZAR 98,786 ZAR

View

Retailer 19

£5,031 GBP

SGD 9,109 SGD

View

Retailer 20

£5,284 GBP

$7,080 USD

View

B+

Retailer 21

£5,361 GBP

View

Retailer 22

£5,502 GBP

$7,372 USD

View

Retailer 23

£5,821 GBP

$7,799 USD

View

Most Expensive

Brilliant Earth

20322811A · Oct 31

£6,799 GBP

$9,110 USD

View

23 more retailers have this diamond

Prices start from £1,413 GBPSave up to £5,386 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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3.70ct Oval

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