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Oval|Lab Grown|IGI

3.10ct D FL Oval Lab Grown Diamond

EX • D/FL • IGI LG780667828

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG780667828

Diamond specifications and retailer prices

From £891 GBP
$1,187 USD
As of October 23, 2026
Save £7,023 GBP (89%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £11,947 GBP at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 3.1ct lab-grown oval diamond

This 3.1ct 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 LG780667828 or 780667828. Listed at 21 retailers as of October 23, 2026, with a 788% 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

3.10
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780667828
Dimensions11.85 × 8.20 × 5.14 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
11.85 mm8.20 mm3.10 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780667828
Side View
Table 58.0%Crown 35.9°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.7%

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 23
Current: £1,636 GBP|Low: £891 GBP|High: £11,156 GBP|Avg: £3,486 GBP|-33.6%
Retailer 1
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Retailer 21
October 26, 2026
Retailer 19£891 GBP
Retailer 17£969 GBP
Retailer 7£998 GBP
Retailer 11£1,034 GBP
Retailer 16£1,141 GBP
Retailer 4£1,455 GBP
Retailer 1£1,636 GBP
Retailer 2£1,731 GBP
Retailer 21£1,757 GBP
Retailer 18£1,980 GBP
Retailer 3£2,139 GBP
Retailer 15£2,625 GBP
Retailer 9£2,758 GBP
Retailer 10£3,183 GBP
Retailer 6£3,227 GBP
Retailer 12£3,671 GBP
Retailer 8£3,891 GBP
Retailer 13£4,048 GBP
Retailer 20£4,104 GBP
Retailer 5£7,915 GBP
Retailer 14£11,156 GBP

32 data points across 21 retailers

21 retailers£891 GBP to £7,915 GBP

A
Cheapest Retailer
-
£891 GBP
$1,187 USD
A
Retailer 2
-
£969 GBP
$1,291 USD
View
A
Retailer 3
-
£1,034 GBP
$1,377 USD
View
A
Retailer 4
-
£1,141 GBP
$1,520 USD
View
A
Retailer 5
-
£1,455 GBP
$1,937 USD
View
A
Retailer 6
-
£1,514 GBP
$2,016 USD
View
Price last confirmed 16 days ago
A
Retailer 7
-
£1,636 GBP
View
A
Retailer 8
-
£1,757 GBP
$2,340 USD
View
A
Retailer 9
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£1,980 GBP
$2,637 USD
View
A
Retailer 10
-
£2,139 GBP
$2,848 USD
View
B+
Retailer 11
-
£2,625 GBP
ZAR 56,474 ZAR
View
B+
Retailer 12
-
£2,758 GBP
View
B+
Retailer 13
-
£3,183 GBP
$4,239 USD
View
B+
Retailer 14
-
£3,227 GBP
$4,297 USD
View
B+
Retailer 15
-
£3,671 GBP
View
B+
Retailer 16
-
£3,891 GBP
$5,182 USD
View
B+
Retailer 17
-
£4,048 GBP
$5,390 USD
View
B+
Retailer 18
-
£4,104 GBP
$5,465 USD
View
Price last confirmed 10 days ago
B
Retailer 19
-
£7,915 GBP
$10,540 USD
View
B
Retailer 20
-
£11,156 GBP
$14,856 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
21805140A · Oct 26
£11,947 GBP
$15,910 USD
View
Price under review
20 more retailers have this diamond
Prices start from £891 GBPSave up to £7,023 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
3.10ct Oval
£891 GBP