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Oval|Lab Grown|IGI

0.51ct D FL Oval Lab Grown Diamond

EX • D/FL • IGI LG833683813

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG833683813

Diamond specifications and retailer prices

From £481 GBP
$645 USD
As of October 26, 2026
Save £785 GBP (62%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,401 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.51ct lab-grown oval diamond

This 0.51ct lab-grown oval sits in the half to three-quarter carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG833683813 or 833683813. Listed at 16 retailers as of October 26, 2026, with a 163% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833683813
Dimensions6.65 × 4.44 × 2.76 mm
L/W Ratio1.50
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
Top View
6.65 mm4.44 mm0.51 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833683813
Side View
Table 61.0%Crown 33.8°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: £1,401 GBP|Low: £197 GBP|High: £2,321 GBP|Avg: £846 GBP|+15.6%
MOH London
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
Retailer 17
October 26, 2026
Retailer 17£293 GBP
Retailer 9£302 GBP
Retailer 3£324 GBP
Retailer 15£481 GBP
Retailer 12£548 GBP
Retailer 14£591 GBP
Retailer 2£636 GBP
Retailer 11£637 GBP
Retailer 7£780 GBP
Retailer 6£980 GBP
Retailer 8£1,068 GBP
Retailer 16£1,073 GBP
Retailer 4£1,244 GBP
Retailer 10£1,266 GBP
Retailer 5£1,267 GBP
MOH London£1,401 GBP
Retailer 13£1,970 GBP

30 data points across 17 retailers

16 retailers£481 GBP to £1,267 GBP

Retailer 1
-
£244 GBP
$327 USD
Price last confirmed 40 days ago
Retailer 2
-
£299 GBP
$400 USD
View
Price last confirmed 40 days ago
Retailer 3
-
£324 GBP
$434 USD
View
Price last confirmed 7 days ago
B+
Retailer 4
-
£481 GBP
$645 USD
View
B
Retailer 5
-
£591 GBP
$792 USD
View
B+
Retailer 6
-
£636 GBP
View
Retailer 7
-
£637 GBP
ZAR 13,794 ZAR
View
Price last confirmed 8 days ago
Retailer 8
-
£780 GBP
$1,046 USD
View
Price last confirmed 8 days ago
Retailer 9
-
£972 GBP
$1,302 USD
View
Price last confirmed 41 days ago
B
Retailer 10
-
£980 GBP
$1,313 USD
View
B
Retailer 11
-
£1,073 GBP
CA$1,996 CAD
View
Retailer 12
-
£1,244 GBP
$1,667 USD
View
Price last confirmed 7 days ago
B
Retailer 13
-
£1,266 GBP
$1,696 USD
View
B
Retailer 14
-
£1,267 GBP
$1,697 USD
View
Most Expensive
MOH London
LG833683813 · Oct 26
£1,401 GBP
View
Price under review
14 more retailers have this diamond
Prices start from £481 GBPSave up to £785 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.

B+
0.51ct Oval
£481 GBP