Marquise|Lab Grown|IGI

0.51ct D VS1 Marquise Lab Grown Diamond

VG • D/VS1 • IGI LG844613777

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844613777

Diamond specifications and retailer prices

From £94 GBP
$126 USD
As of November 1, 2026
Save £589 GBP (86%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £870 GBP at MOH London · As of November 1, 2026
View at MOH London

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 VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG844613777 or 844613777. Listed at 11 retailers as of November 1, 2026, with a 626% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
D
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle29.9°
Pavilion angle32.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844613777
Dimensions9.08 × 4.39 × 2.16 mm
L/W Ratio2.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.08 mm4.39 mm0.51 ctD / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG844613777
Side View
Table 56.0%Crown 29.9°Girdle: MED-STKPavilion 32.2°Culet: NoneDepth 49.2%

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 1
Current: £870 GBP|Low: £94 GBP|High: £875 GBP|Avg: £305 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 10£94 GBP
Retailer 3£142 GBP
Retailer 11£187 GBP
Retailer 4£189 GBP
Retailer 2£211 GBP
Retailer 7£220 GBP
Retailer 6£247 GBP
Retailer 9£252 GBP
Retailer 5£269 GBP
Retailer 8£683 GBP
MOH London£870 GBP

18 data points across 11 retailers

11 retailers£94 GBP to £683 GBP

A
Cheapest Retailer
-
£94 GBP
$126 USD
Final sale: no returns
B+
Retailer 2
-
£142 GBP
$190 USD
View
B+
Retailer 3
-
£187 GBP
€239 EUR
View
B+
Retailer 4
-
£189 GBP
ZAR 4,100 ZAR
View
B+
Retailer 5
-
£211 GBP
View
B+
Retailer 6
-
£220 GBP
$295 USD
View
B
Retailer 7
-
£247 GBP
$331 USD
View
B
Retailer 8
-
£252 GBP
View
B+
Retailer 9
-
£269 GBP
$360 USD
View
B
Retailer 10
-
£683 GBP
$915 USD
View
Most Expensive
MOH London
LG844613777 · Nov 1
£870 GBP
View
Price under review
10 more retailers have this diamond
Prices start from £94 GBPSave up to £589 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
£94 GBP