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Oval|Lab Grown|IGI

3.37ct D FL Oval Lab Grown Diamond

ID • D/FL • IGI LG780663143

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG780663143

Diamond specifications and retailer prices

From £1,204 GBP
$1,604 USD
As of October 29, 2026
Save £6,007 GBP (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £12,991 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 LG780663143 or 780663143. Listed at 14 retailers as of October 29, 2026, with a 499% 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663143
Dimensions12.10 × 8.33 × 5.27 mm
L/W Ratio1.45
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
12.10 mm8.33 mm3.37 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663143
Side View
Table 58.0%Crown 36.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 63.3%

Caratlytics Score

How it works →
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: £12,991 GBP|Low: £1,204 GBP|High: £13,389 GBP|Avg: £4,596 GBP|-3.0%
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 8£1,204 GBP
Retailer 14£1,403 GBP
Retailer 2£1,564 GBP
Retailer 13£1,676 GBP
Retailer 3£1,784 GBP
Retailer 9£2,036 GBP
Retailer 7£2,577 GBP
Retailer 12£2,884 GBP
Retailer 10£2,911 GBP
Retailer 11£3,938 GBP
Retailer 4£4,280 GBP
Retailer 6£5,025 GBP
Retailer 5£7,211 GBP
Brilliant Earth£12,991 GBP

36 data points across 14 retailers

14 retailers£1,204 GBP to £7,211 GBP

A
Cheapest Retailer
-
£1,204 GBP
$1,604 USD
A
Retailer 2
-
£1,403 GBP
HK$14,600 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
A
Retailer 6
-
£2,036 GBP
$2,711 USD
View
B+
Retailer 7
-
£2,577 GBP
ZAR 55,448 ZAR
View
B+
Retailer 8
-
£2,884 GBP
$3,840 USD
View
B+
Retailer 9
-
£2,911 GBP
$3,877 USD
View
B+
Retailer 10
-
£3,938 GBP
$5,245 USD
View
Retailer 11
-
£4,280 GBP
$5,700 USD
View
Price last confirmed 11 days ago
Retailer 12
-
£5,025 GBP
View
Price last confirmed 21 days ago
B
Retailer 13
-
£7,211 GBP
$9,603 USD
View
Most Expensive
Brilliant Earth
19646792Y · Oct 29
£12,991 GBP
$17,300 USD
View
Price under review
13 more retailers have this diamond
Prices start from £1,204 GBPSave up to £6,007 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
£1,204 GBP