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Marquise|Lab Grown|IGI

0.51ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG807610403

Shape and cutting style on the report: Antique marquise cut

Certificate IGI LG807610403

Diamond specifications and retailer prices

From £226 GBP
As of November 5, 2026
Save £1,064 GBP (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,805 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 0.51ct lab-grown marquise diamond

This 0.51ct lab-grown marquise 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 LG807610403 or 807610403. Listed at 17 retailers as of November 3, 2026, with a 471% 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle42°
OriginLab Grown
Grading LabIGI
CertificateIGI LG807610403
Dimensions8.34 × 3.97 × 2.32 mm
L/W Ratio2.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.34 mm3.97 mm0.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG807610403
Side View
Table 60.0%Crown 33.3°Girdle: STK-THKPavilion 42°Culet: NoneDepth 58.4%

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: Nov 5
Current: £1,805 GBP|Low: £232 GBP|High: £1,805 GBP|Avg: £724 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 11£241 GBP
Retailer 10£270 GBP
Retailer 5£280 GBP
Retailer 4£299 GBP
Retailer 12£299 GBP
Retailer 3£485 GBP
Retailer 2£585 GBP
Retailer 8£599 GBP
Retailer 9£877 GBP
Retailer 13£1,061 GBP
Retailer 6£1,178 GBP
Retailer 7£1,290 GBP
Do Amore Diamonds£1,805 GBP

43 data points across 13 retailers

17 retailers£226 GBP to £1,290 GBP

A
Cheapest Retailer
-
£226 GBP
A
Retailer 2
-
£241 GBP
View
A
Retailer 3
-
£270 GBP
View
Final sale: no returns
A
Retailer 4
-
£280 GBP
View
Retailer 5
-
£299 GBP
View
Price last confirmed 11 days ago
A
Retailer 6
-
£299 GBP
View
B+
Retailer 7
-
£461 GBP
View
B+
Retailer 8
-
£485 GBP
View
Retailer 9
-
£493 GBP
View
Price last confirmed 23 days ago
B+
Retailer 10
-
£585 GBP
View
B+
Retailer 11
-
£599 GBP
View
B
Retailer 12
-
£877 GBP
View
B
Retailer 13
-
£1,061 GBP
View
B
Retailer 14
-
£1,178 GBP
View
B
Retailer 15
-
£1,178 GBP
View
B
Retailer 16
-
£1,290 GBP
View
Most Expensive
Do Amore Diamonds
20-C140751 · Nov 4
£1,805 GBP
$2,430 USD
View
Price under review
16 more retailers have this diamond
Prices start from £226 GBPSave up to £1,064 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
0.51ct Marquise
£226 GBP