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Oval|Lab Grown|IGI

3.37ct D FL Oval Lab Grown Diamond

EX • D/FL • IGI LG780662857

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG780662857

Diamond specifications and retailer prices

From £1,294 GBP
$1,723 USD
As of October 29, 2026
Save £2,965 GBP (70%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £13,051 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.37ct lab-grown oval diamond

This 3.37ct lab-grown oval 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 LG780662857 or 780662857. Listed at 14 retailers as of October 29, 2026, with a 229% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.37
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780662857
Dimensions12.15 × 8.68 × 5.25 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
Top View
12.15 mm8.68 mm3.37 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780662857
Side View
Table 58.0%Crown 33.7°Girdle: MediumPavilion 40.4°Culet: NoneDepth 60.5%

Caratlytics Score

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A
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: £13,051 GBP|Low: £1,294 GBP|High: £13,502 GBP|Avg: £4,455 GBP|-3.3%
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
October 30, 2026
Retailer 9£1,294 GBP
Retailer 3£1,355 GBP
Retailer 2£1,564 GBP
Retailer 14£1,676 GBP
Retailer 4£1,784 GBP
Retailer 7£2,577 GBP
Retailer 10£2,646 GBP
Retailer 13£2,884 GBP
Retailer 11£3,185 GBP
Retailer 8£3,585 GBP
Retailer 12£3,895 GBP
Retailer 5£4,259 GBP
Retailer 6£4,318 GBP
Brilliant Earth£13,051 GBP

34 data points across 14 retailers

14 retailers£1,294 GBP to £4,259 GBP

A
Cheapest Retailer
-
£1,294 GBP
$1,723 USD
A
Retailer 2
-
£1,355 GBP
HK$14,100 HKD
View
A
Retailer 3
-
£1,564 GBP
View
A
Retailer 4
-
£1,676 GBP
$2,232 USD
View
A
Retailer 5
-
£1,784 GBP
€2,262 EUR
View
B+
Retailer 6
-
£2,577 GBP
ZAR 55,448 ZAR
View
B+
Retailer 7
-
£2,646 GBP
$3,523 USD
View
B+
Retailer 8
-
£2,884 GBP
$3,840 USD
View
B+
Retailer 9
-
£3,185 GBP
$4,241 USD
View
B+
Retailer 10
-
£3,585 GBP
View
B+
Retailer 11
-
£3,895 GBP
$5,187 USD
View
B+
Retailer 12
-
£4,259 GBP
$5,672 USD
View
Retailer 13
-
£4,318 GBP
$5,750 USD
View
Price last confirmed 11 days ago
Most Expensive
Brilliant Earth
18951396A · Oct 29
£13,051 GBP
$17,380 USD
View
Price under review
13 more retailers have this diamond
Prices start from £1,294 GBPSave up to £2,965 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.

A
3.37ct Oval
£1,294 GBP