CaratHunter
Plans
Marquise|Lab Grown|IGI

0.51ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG835611616

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG835611616

Diamond specifications and retailer prices

From £210 GBP
$282 USD
As of November 1, 2026
Save £534 GBP (72%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £900 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 top-tier cut grade and certified by IGI LG835611616 or 835611616. Listed at 5 retailers as of October 31, 2026, with a 254% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.8°
Pavilion angle42.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835611616
Dimensions8.20 × 4.11 × 2.64 mm
L/W Ratio2.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.20 mm4.11 mm0.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG835611616
Side View
Table 65.0%Crown 35.8°Girdle: MediumPavilion 42.3°CuletDepth 64.2%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £900 GBP|Low: £207 GBP|High: £910 GBP|Avg: £471 GBP|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 5£210 GBP
Retailer 2£218 GBP
Retailer 3£260 GBP
Retailer 4£745 GBP
MOH London£900 GBP

20 data points across 5 retailers

5 retailers£210 GBP to £745 GBP

B+
Cheapest Retailer
-
£210 GBP
$282 USD
B+
Retailer 2
-
£218 GBP
View
B+
Retailer 3
-
£260 GBP
View
B
Retailer 4
-
£745 GBP
$998 USD
View
Most Expensive
MOH London
LG835611616 · Nov 1
£900 GBP
View
Price under review
4 more retailers have this diamond
Prices start from £210 GBPSave up to £534 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 Marquise
£210 GBP